DOUBLE EFFECT DIRECT FIRED ABSORPTION CHILLER-HEATER

Model YHAU-CGN/HSeries EX/EXW

50 Hz 120 - 1600 TON422 - 5626 KW

DOUBLE EFFECT DIRECT FIRED ABSORPTION CHILLER-HEATER

INSTALLATION, OPERATION, MAINTENANCESUPERSEDES:

155.32-ICOM1.EN.GB (1017)

Form 155.32-ICOM1.EN.GB (318)

Issue Date: March 29, 2018

LD20142

JOHNSON CONTROLS2

FORM 155.32-ICOM1.EN.GBISSUE DATE: 3/29/2018

This equipment is a relatively complicated apparatus. During rigging, installation, operation, maintenance, or service, individuals may be exposed to certain com-ponents or conditions including, but not limited to: heavy objects, refrigerants, materials under pressure, rotating components, and both high and low voltage. Each of these items has the potential, if misused or handled improperly, to cause bodily injury or death. It is the obligation and responsibility of rigging, instal-lation, and operating/service personnel to identify and recognize these inherent hazards, protect themselves, and proceed safely in completing their tasks. Failure to comply with any of these requirements could result in serious damage to the equipment and the property in

IMPORTANT!READ BEFORE PROCEEDING!

GENERAL SAFETY GUIDELINES

which it is situated, as well as severe personal injury or death to themselves and people at the site.

This document is intended for use by owner-authorized rigging, installation, and operating/service personnel. It is expected that these individuals possess independent training that will enable them to perform their assigned tasks properly and safely. It is essential that, prior to performing any task on this equipment, this individual shall have read and understood the on-product labels, this document and any referenced materials. This in-dividual shall also be familiar with and comply with all applicable industry and governmental standards and regulations pertaining to the task in question.

SAFETY SYMBOLS

The following symbols are used in this document to alert the reader to specific situations:

Indicates a possible hazardous situation which will result in death or serious injury if proper care is not taken.

Indicates a potentially hazardous situa-tion which will result in possible injuries or damage to equipment if proper care is not taken.

Identifies a hazard which could lead to damage to the machine, damage to other equipment and/or environmental pollu-tion if proper care is not taken or instruc-tions and are not followed.

Highlights additional information useful to the technician in completing the work being performed properly.

External wiring, unless specified as an optional connection in the manufacturer’s product line, is not to be connected inside the control cabinet. Devices such as relays, switches, transducers and controls and any external wiring must not be installed inside the micro panel. All wiring must be in accor-dance with Johnson Controls’ published specifications and must be performed only by a qualified electrician. Johnson Controls will NOT be responsible for damage/problems resulting from improper connections to the controls or application of improper control signals. Failure to follow this warn-ing will void the manufacturer’s warranty and cause serious damage to property or personal injury.

JOHNSON CONTROLS 3

FORM 155.32-ICOM1.EN.GB ISSUE DATE: 3/29/2018

MANUAL DESCRIPTION FORM NUMBER

Absorption Chiller-Heater Long Term Storage 50.20-NM11

Long-Term Storage Checklist - Absorption Chiller-Heater 50.20-CL10

Long-Term Storage Requirements - General 50.20-NM10

CHANGEABILITY OF THIS DOCUMENT

In complying with Johnson Controls’ policy for contin-uous product improvement, the information contained in this document is subject to change without notice. Johnson Controls makes no commitment to update or provide current information automatically to the man-ual or product owner.

It is the responsibility of rigging, lifting, and operating/ service personnel to verify the applicability of these documents to the equipment. If there is any question regarding the applicability of these documents, rig-ging, lifting, and operating/service personnel should

verify whether the equipment has been modified and if current literature is available from the owner of the equipment prior to performing any work on the chiller-heater.

CHANGE BARSRevisions made to this document are indicated with a line along the left or right hand column in the area the revision was made. These revisions are to technical in-formation. Any other changes in spelling, grammar or formatting are not included.

ASSOCIATED LITERATURE

JOHNSON CONTROLS4


NOMENCLATURE

YHAU C G N 500 EX

NOMINAL CAPACITY (RT)

DIRECT FIRED FUEL SOURCEG = Natural Gas, LPGA = Diesel OilK = Kerosene

UNIT York Absorption Chiller

HEATING CAPACITY N = StandardH = HTG One Size Larger

S JE LL

WASTE HOT WATER HEAT RECOVERYNone: No heat recoveryJ: Heat recovery (Standard)JE: Heat recovery (Enlarged type)

LOW TEMP. CHWL : 1.0 °C CHWLL: -5.0 °C CHW

MODEL SERIES NAMEEX=120 - 800 RT NOMINAL CAPACITYEXW=900 ~ 1100 RT NOMINAL CAPACITYEXW3=1200 ~ 1600 RT NOMINAL CAPACITY

DESIGN SYMBOL

EFFICIENCYNone: Highest efficiencyH = HighS = Standard

JOHNSON CONTROLS 5


TABLE OF CONTENTS

SECTION 1 – GENERAL CHILLER-HEATER INFORMATION AND SAFETY ...................................................... 11Introduction ..................................................................................................................................................... 11About this Manual ........................................................................................................................................... 11Warranty ......................................................................................................................................................... 11Quality Assurance .........................................................................................................................................12High Temperature and Pressure Cleaning ....................................................................................................12Safety Labels ..................................................................................................................................................13

SECTION 2 – PRODUCT DESCRIPTION ..............................................................................................................15Chiller-Heater Components ............................................................................................................................15Control Panel ..................................................................................................................................................15How It Works (Direct Fired Units) ...................................................................................................................16Evaporator ......................................................................................................................................................17Absorber .........................................................................................................................................................17Two-step Evaporator – Absorber ....................................................................................................................17Plate Type Heat Exchangers ..........................................................................................................................18Parallel Flow ...................................................................................................................................................18High Temperature Generator (HTG) ...............................................................................................................18Low Temperature Generator (LTG) ................................................................................................................18Condenser ......................................................................................................................................................19Crystallization .................................................................................................................................................19Why Does Crystallization Occur? ...................................................................................................................19

SECTION 3 – HANDLING, STORAGE, INSTALLATION AND REASSEMBLY .....................................................21Inspection .......................................................................................................................................................22Inspection Window .........................................................................................................................................22Installation Guidelines ....................................................................................................................................22Hoisting the machine ......................................................................................................................................23Moving the Machine on Rollers ......................................................................................................................24Structural Support and Installation .................................................................................................................28Indoor and Outdoor Installation ......................................................................................................................28Precautions for Use .......................................................................................................................................28Leak testing ....................................................................................................................................................30Electrical Shock Cautions ...............................................................................................................................30Use of Gas .....................................................................................................................................................30Vibration and Isolation Details ........................................................................................................................30Hot Insulation/Cold Insulation Procedure .......................................................................................................34

SECTION 4 - TECHNICAL DATA ...........................................................................................................................37Upper Communication Specification ..............................................................................................................74

Upper Communication System Configuration .......................................................................................74Scope of Delivery ..................................................................................................................................75Connection Port for Ethernet Communication .......................................................................................75Communication Specification ................................................................................................................75Communication Data .............................................................................................................................76User-Created ........................................................................................................................................784-Wire Type Cable Diagrams ................................................................................................................80

JOHNSON CONTROLS6


TABLE OF CONTENTS (CONT'D)

SECTION 5 - COMMISSIONING ............................................................................................................................83General Guidelines for Use ............................................................................................................................83

Before Operation ...................................................................................................................................83Precautions for The Use Of Water .................................................................................................................84Chilled/Hot Water Outlet Temperature Controller ...........................................................................................84Liquid Level Gauges .......................................................................................................................................84Start The Chiller-Heater..................................................................................................................................85Stop The Chiller-Heater ..................................................................................................................................85Interlocking Procedure ..................................................................................................................................85

SECTION 6 – OPERATION ....................................................................................................................................97YHAU-CGN/H Control Center .......................................................................................................................97Common Items ...............................................................................................................................................97Change Numeric Values .................................................................................................................................98Operating Status ............................................................................................................................................99

Failure ................................................................................................................................................. 115Control Parameter ........................................................................................................................................120Valve Operation ............................................................................................................................................121Date And Time ..............................................................................................................................................122Operation Switch ..........................................................................................................................................122Select Language ..........................................................................................................................................123Single Loop Controller ..................................................................................................................................123

Run Mode ............................................................................................................................................124Ready Mode ........................................................................................................................................124Alarm Mode .........................................................................................................................................125Alarm Codes ........................................................................................................................................126

Air Damper Control ......................................................................................................................127Hot Water Control Valve ...............................................................................................................128

AUTO/MANUAL Mode (RHW only) .....................................................................................................129Operation Mode Changeover .......................................................................................................................130

Changeover to Cooling Mode ..............................................................................................................130Changeover to Heating Mode .............................................................................................................130Use Simultaneous Residential Hot Water Supply Mode (Option) ......................................................130Changeover to Residential Hot Water Sole Supply Mode (Option) ....................................................131

SECTION 7 – MAINTENANCE .............................................................................................................................135Exhaust Duct Inspection ...............................................................................................................................135Valve Inspection ...........................................................................................................................................135Solenoid Valves ............................................................................................................................................135Pump Shut Off Valves ..................................................................................................................................135Air Purge Valves and Drain Valves ...............................................................................................................135Purge Valves ................................................................................................................................................135Start The Chiller-Heater After It Has Been Stopped For a Long Period .......................................................136

Checks Before Operation Starts ..........................................................................................................136Checks After Operation Starts ......................................................................................................................136Purge Procedure ..........................................................................................................................................136

JOHNSON CONTROLS 7


Capacity Check Method of Vacuum Pump ...................................................................................................136Manual Method to Purge Non-Condensable Gas Directly from Absorber ....................................................140Manual Method to Purge Non-Condensable Gas from the Purge Tank .......................................................140Automatic Method to Purge Non-condensable Gas from the Purge Tank ....................................................141Refrigerant Refining Method ........................................................................................................................148Manual Refrigerant Blow Down and Diluting Method ...................................................................................148Decrystallization Method ..............................................................................................................................148

Indications of Crystallization ................................................................................................................149Decrystallization ...........................................................................................................................................149Precautions for Decrystallization ..................................................................................................................150Maintenance Items .......................................................................................................................................150

Refrigerant Pump Manual Stop ...........................................................................................................154Purge Manual Start and Stop ..............................................................................................................154

Lifespan for Various Parts ............................................................................................................................154Water Quality Control ...................................................................................................................................156Chemical Water Treatment ...........................................................................................................................157Replacement of Water .................................................................................................................................157Treatment For Long Stoppage Of The Absorption Chiller-Heater ................................................................157Chemical Treatment ....................................................................................................................................157Flow Speed in Tubes ...................................................................................................................................157Storage Method Of The Chiller-Heater .........................................................................................................160

Wet Storage Method ...........................................................................................................................160Dry Storage Method ............................................................................................................................161

Precautions Against External Damage .........................................................................................................161Storage Method of the Cooling Water During Heating Operation Period .....................................................163

Wet Storage ........................................................................................................................................163Work Procedure ...........................................................................................................................164

Dry Storage .........................................................................................................................................164Work Procedure ...........................................................................................................................165

SECTION 8 – TROUBLESHOOTING ...................................................................................................................171Troubleshooting Performance Issues ...........................................................................................................175Vacuum Pump ..............................................................................................................................................176Abnormal Solution and Refrigerant Levels ...................................................................................................177Actions to Take Against Power Failure .........................................................................................................180

SECTION 9 - DECOMMISSIONING, DISMANTLING, AND DISPOSAL .............................................................181

TABLE OF CONTENTS (CONT'D)

JOHNSON CONTROLS8


LIST OF FIGURES

FIGURE 1 - YHAU-CGN/H-120~300EX(H/S) and 360EX~1600EXW3(H/S) ..........................................................15FIGURE 2 - Two Step Direct Fired Absorption Chiller-Heater Cycle Diagram (Cooling Mode) ...............................16FIGURE 3 - Warning ...............................................................................................................................................21FIGURE 4 - Hoisting Procedures (4-point Listing)...................................................................................................23FIGURE 5 - Moving the machine on rollers .............................................................................................................24FIGURE 6 - Moving the Machine on TIR-Rollers ....................................................................................................25FIGURE 7 - Fitting Tri-rollers to the Machine ..........................................................................................................26FIGURE 8 - Jack-up Procedure...............................................................................................................................26FIGURE 9 - Jack-Up Support ..................................................................................................................................27FIGURE 10 - Vibration and Isolation Details ...........................................................................................................31FIGURE 11 - YHAU-CGN/H-120-300EX(H/S) and 360EX(H/S)-1600EXW3(H/S) Nozzle Locations .....................32FIGURE 12 - Fuel Gas Piping System ....................................................................................................................33FIGURE 13 - Hot/Cold Insulation ...........................................................................................................................34FIGURE 14 - Interior of Control Panel (mm) ...........................................................................................................35FIGURE 15 - Exterior of Control Panel (mm) ..........................................................................................................35FIGURE 16 - Power Wiring .....................................................................................................................................52FIGURE 17 - Power Supply Wiring .........................................................................................................................54FIGURE 18 - PLC Input Wiring................................................................................................................................58FIGURE 19 - PLC Output Wiring .............................................................................................................................62FIGURE 20 - PLC Analog Input Wiring....................................................................................................................66FIGURE 21 - Display/Analog Input Wiring...............................................................................................................68FIGURE 22 - External Connection Terminal Details ................................................................................................70FIGURE 23 - 3 Phase 4 Wire Power Supply Wiring ................................................................................................71FIGURE 24 - Remote Stop & Start Signal ...............................................................................................................72FIGURE 25 - Signal Terminal Transition Wiring ......................................................................................................72FIGURE 26 - Upper Communication System Configuration....................................................................................74FIGURE 27 - Connection Detail for D-sub 9pin .......................................................................................................78FIGURE 28 - 2-Wire 1:1 Connection with User-Created Cable...............................................................................79FIGURE 29 - 2-Wire N:1 Connection with User-Created Cable ..............................................................................80FIGURE 30 - 4-Wire 1:1 Connection With User-Created Cable ..............................................................................80FIGURE 31 - 4-Wire N:1 Connection With User-Created Cable .............................................................................81FIGURE 32 - Sample Sound Testing .......................................................................................................................82FIGURE 33 - Cooling Start Diagram .......................................................................................................................86FIGURE 34 - Cooling Stop Diagram........................................................................................................................86FIGURE 35 - Direct Fire Sequential Operation Flowchart .......................................................................................87FIGURE 36 - Stopping Absorption Chiller-Heater Direct Fire Flowchart .................................................................87FIGURE 37 - Main Screen.......................................................................................................................................99FIGURE 38 - Data Screen .....................................................................................................................................101FIGURE 39 - Solution Analysis / Control Panel Parts Replacement Screen .........................................................103FIGURE 40 - Solution Pump Overhaul / Refrigerant Pump Overhaul Screen.......................................................104FIGURE 41 - Burner Parts Replacement/ Burner Combustion Check Screen ......................................................105FIGURE 42 - Trend Screen ...................................................................................................................................106FIGURE 43 - Hourly Operation History .................................................................................................................107FIGURE 44 - Minutely Operation History ..............................................................................................................109FIGURE 45 - Failure History Screen ..................................................................................................................... 111FIGURE 46 - Alarm History Screen ....................................................................................................................... 113FIGURE 47 - Failure and Alarm Screen ................................................................................................................ 115FIGURE 48 - Setting Screen .................................................................................................................................120FIGURE 49 - Single Loop Controller .....................................................................................................................123FIGURE 50 - Run Mode ........................................................................................................................................124FIGURE 51 - Ready Mode ....................................................................................................................................124FIGURE 52 - Alarm Mode......................................................................................................................................125FIGURE 53 - Air Damper Control .........................................................................................................................127

JOHNSON CONTROLS 9


FIGURE 54 - Hot Water Control Valve ..................................................................................................................128FIGURE 55 - Changing Information in Manual Mode ............................................................................................129FIGURE 56 - Changeover Valve Locations ...........................................................................................................132FIGURE 57 - Location of Manual Valve in Purging System 120-300EX(H/S) .............................................. 137FIGURE 58 - Location of Manual Valve in Purging System 360-500EX(H/S) .............................................. 138FIGURE 59 - Location of Manual Valve in Purging System 560-1600EXW3(H/S) ....................................... 139FIGURE 60 - YHAU- CGN/H Direct Fired Chiller-Heater Flow Diagram - Heating Only (Evaporator) ..................142FIGURE 61 - YHAU- CGN/H Direct Fired Chiller-Heater Flow Diagram - Residential Hot Water (Auxiliary Heat Exchanger) ............................................................................................................................................................143FIGURE 62 - YHAU- CGN/H Direct Fired Chiller-Heater Flow Diagram - Simultaneous Cooling and Residential

Hot Water Only ................................................................................................................................144FIGURE 63 - YHAU- CGN/H Direct Fired Chiller-Heater Flow Diagram - Simultaneous Heating and Residential Hot Water ..............................................................................................................................................................145FIGURE 64 - Process and Instrumentation Diagram - Cooling Only.....................................................................146FIGURE 65 - YHAU- CGN/H Direct Fired Chiller-Heater Flow Diagram - Cooling Only .......................................147FIGURE 66 - Chilled/Hot Water and Cooling Water System .................................................................................160FIGURE 67 - Wet Storage During Heating Operation Period ................................................................................164FIGURE 68 - Dry Storage During Heating Operation Period ................................................................................165FIGURE 69 - Duhring Diagram / PTX Chart (°F) ...................................................................................................166FIGURE 70 - Duhring Diagram / PTX Chart (°C) ..................................................................................................167FIGURE 71 - Specific Gravity - Concentration (°F) ...............................................................................................168FIGURE 72 - Specific Gravity - Concentration (°C) ...............................................................................................169FIGURE 73 - Troubleshooting Sequence Flow Chart............................................................................................179FIGURE 74 - Actions to Take Against Power Failure .............................................................................................180

LIST OF FIGURES (CONT.)

JOHNSON CONTROLS10


LIST OF TABLES

TABLE 1 - Nozzle Arrangements 120-300EX(H/S) and 360EX(H/S)-1600EXW3(H/S) ..........................................32TABLE 2 - Insulating Material and Thickness .........................................................................................................34TABLE 3 - Points Requiring Hot/Cold Insulation .....................................................................................................34TABLE 4 - Typical Operational Range ....................................................................................................................37TABLE 5 - Standard Efficiency ................................................................................................................................38TABLE 6 - High Efficiency .......................................................................................................................................38TABLE 7 - Physical Data (with Exhaust Gas Temp. Approximately 220°C) - CGN ......................................................39TABLE 8 - Physical Data (with Exhaust Gas Temp. Approximately 220°C - CGH .................................................39TABLE 9 - Electrical Data ......................................................................................................................................41TABLE 10 - Electrical Data - CGH ..........................................................................................................................42TABLE 11 - Load Points for High Efficiency - CGN .................................................................................................44TABLE 12 - Load Points for High Efficiency - CGH ...............................................................................................45TABLE 13 - Load Points for Standard Efficiency - CGN .........................................................................................46TABLE 14 - Load Points for Standard Efficiency - CGH .........................................................................................47TABLE 15 - Split Shipment - High Efficiency - CGN ...............................................................................................48TABLE 16 - Split Shipment - High Efficiency - CGH ...............................................................................................49TABLE 17 - Split Shipment - Standard Efficiency - CGN ........................................................................................50TABLE 18 - Split Shipment - Standard Efficiency - CGH ........................................................................................51TABLE 19 - Contact Specifications .........................................................................................................................71TABLE 20 - Scope of Delivery ................................................................................................................................75TABLE 21 - Ethernet Interface Specification ...........................................................................................................75TABLE 22 - Communication Specifications ............................................................................................................75TABLE 23 - Read Command ..................................................................................................................................76TABLE 24 - Write Command ...................................................................................................................................77TABLE 25 - Scope of Delivery of Upper Communication System ...........................................................................78TABLE 26 - Cable Diagram (RS-422/RS485) .........................................................................................................79TABLE 27 - Communication Specifications ............................................................................................................81TABLE 28 - Rotary Pump Rotation .........................................................................................................................83TABLE 29 - Liquid Level Gauges (Sight Glass) ......................................................................................................84TABLE 30 - Failure List .........................................................................................................................................116TABLE 31 - Alarm List ...........................................................................................................................................118TABLE 32 - Alarm Codes ......................................................................................................................................126TABLE 33 - Changeover Valve Operation ............................................................................................................133TABLE 34 - Solenoid Valves .................................................................................................................................135TABLE 35 - Purge Valve Operation ......................................................................................................................147TABLE 36 - Maintenance and Inspection .............................................................................................................151TABLE 37 - Lifespan of Common Parts ................................................................................................................155TABLE 38 - Tendency of Generation of Scales and Corrosion by Quality of Cooling Water ...............................158TABLE 39 - Chilled/Hot and Cooling Water Quality Control (Maximum Concentrations) .....................................159TABLE 40 - Wet Storage Method ..........................................................................................................................162TABLE 41 - Dry Storage Method ..........................................................................................................................162TABLE 42 - Troubleshooting the High Temperature Generator ............................................................................172TABLE 43 - Refrigerant Overcooling Relay ..........................................................................................................172TABLE 44 - Chilled or Hot Water Time Out or Cooling Water Time Out ...............................................................173TABLE 45 - Pump Interlocks .................................................................................................................................173TABLE 46 - Low Cooling Water Inlet Temperature ...............................................................................................173TABLE 47 - Abnormal Control Sensor ..................................................................................................................173TABLE 48 - CPU Abnormal ...................................................................................................................................173TABLE 49 - Chilled or Hot Water Suspension.......................................................................................................174TABLE 50 - Pump(s) Overloaded or Overheated .................................................................................................174TABLE 51 - Troubleshooting Performance Issues ................................................................................................175TABLE 52 - Vacuum Pump Troubleshooting ........................................................................................................176TABLE 53 - Abnormal Solution and Refrigerant Levels ........................................................................................177TABLE 54 - Insufficient Vacuum Levels ................................................................................................................178

JOHNSON CONTROLS 11


1

INTRODUCTIONYORK YHAU-CG/H absorption chiller-heaters are manufactured to the highest design and construction standards to ensure high performance, reliability, and adaptability to all types of air conditioning installa-tions.

This chiller-heater is for air conditioning or cooling a manufacturing process. Use this chiller-heater after installing the chilled/hot water pump, cooling water pump, cooling tower, valves, strainers, pressure gaug-es, thermometers, or other relevant pumps and gauges, according to the water quality information contained in SECTION 7 – MAINTENANCE.

ABOUT THIS MANUALThis manual and any other document supplied with the unit are the property of Johnson Controls which re-serves all rights. This manual may not be reproduced, in whole or in part, without prior written authorization from an authorized Johnson Controls representative.

In addition, this manual:

• Should be read thoroughly before attempting to operate or service the unit.

• Includes suggested best working practices and procedures, which are issued for guidance only, and they do not take precedence over the stated individual responsibility and/or local safety regu-lations.

• Contains all the information required for correct installation and commissioning of the unit, togeth-er with operating and maintenance instructions.

• Contains detailed procedures, including installa-tion, commissioning, and maintenance tasks that must be performed by suitably trained and quali-fied personnel.

• The manufacturer will not be liable for any injury or damage caused by incorrect installation, com-missioning, operation, or maintenance resulting from a failure to follow the procedures and instruc-tions detailed in this manual.

WARRANTYJohnson Controls warrants YHAU-CG/H chiller-heaters in accordance with the Limited Warranty En-gineered Systems Equipment Procedure. Refer to the Limited Warranty (Form 50.05-NM2).

Johnson Controls warrants all equipment and materi-als against defects in workmanship and materials for a period of 18 months from the date of shipment or 12 months from the date of start-up, whichever comes first, unless a labor or extended warranty has been pur-chased as part of the contract.

The warranty is limited to parts only replacement and shipping of any faulty part, or subassembly, which has failed due to defects in workmanship and materials. All claims must be supported by evidence that the fail-ure has occurred within the warranty period, and that the unit was operated within the designed parameters specified.

All warranty claims must specify the unit model, serial number, order number, and run hours/starts. Model and serial number information is printed on the unit identi-fication plate.

The unit warranty will be void if any modification to the unit is carried out without prior written approval from Johnson Controls. For warranty purposes, the fol-lowing conditions must be satisfied:

• The initial start of the unit must be carried out by trained personnel from an authorized Johnson Controls Field Service Office.

• Only genuine Johnson Controls approved spare parts, oils, solutions, chemicals, and refrigerants must be used.

• All of the scheduled maintenance operations de-tailed in this manual must be performed at the specified times by suitably trained and qualified personnel.

Failure to satisfy any of these conditions will auto-matically void the warranty. Refer to Limited Warranty (Form 50.05-NM2) for complete details.

SECTION 1 – GENERAL CHILLER-HEATER INFORMATION AND SAFETY

JOHNSON CONTROLS12

FORM 155.32-ICOM1.EN.GBISSUE DATE: 3/29/2018SECTION 1 – GENERAL CHILLER-HEATER INFORMATION AND SAFETY

HIGH TEMPERATURE AND PRESSURE CLEANING High temperature and pressure cleaning methods (e.g., steam cleaning) should not be used on any part of the pressure system as this may cause operation of the pressure relief device(s). Detergents and solvents, which may cause corrosion, should also be avoided.

QUALITY ASSURANCE Units comply with the following directives:

• GB/T 18362-2008 Direct fired lithium bromide absorption water chiller-heater

• GB 18361-2001 Safety requirements of lithium bromide absorption water chiller (heater)

The unit must be grounded. No installation or main-tenance work should be attempted on the electrical equipment without first switching the power off, then isolating and locking-off the power supply. Servicing and maintenance on live equipment must not be at-tempted. No attempt should be made to gain access to the control panel or electrical enclosures during normal operation of the unit.

Components may also have sharp edges. Reasonable care should be taken when working in contact with any components to avoid risk of minor abrasions and lacerations.

JOHNSON CONTROLS 13

SECTION 1 – GENERAL CHILLER-HEATER INFORMATION AND SAFETYFORM 155.32-ICOM1.EN.GB ISSUE DATE: 3/29/2018

1SAFETY LABELS

Warning: Risk of fire.

Warning: Risk of gas poisoning.

For safe operation, read the instructions first.

Warning: This machine may start auto-matically without prior warning.

Warning: Hot surface.

Warning: Safety relief valve may dis-charge gas or liquid without prior warning.

Warning: Risk of electric shock.

General attention symbol.

Warning: On isolating the supply it may take up to 300 seconds for the capacitor voltage to fall below 50 volts.

LD20923

Caution: Risk of getting hand caught in machinery.

Caution: Risk of fall.

Caution: Prohibited.

Warning: Rotating object.

JOHNSON CONTROLS14

FORM 155.32-ICOM1.EN.GBISSUE DATE: 3/29/2018SECTION 1 – GENERAL CHILLER-HEATER INFORMATION AND SAFETY

THIS PAGE INTENTIONALLY LEFT BLANK.

JOHNSON CONTROLS 15


2

LD20142

The principle of refrigeration is the exchange of heat. In absorption liquid chilling, there are four basic heat exchange surfaces: the evaporator, the absorber, the generator, and the condenser. See Figure 1 on page 15.

Like any refrigeration system, absorption chilling uses evaporation and condensation to remove heat. The ab-sorption cycle uses water as the refrigerant and lithium bromide (LiBr) as the absorbent. It is the strong affin-ity that these two substances have for one another that makes the cycle work. The entire process occurs in al-most a complete vacuum.

CHILLER-HEATER COMPONENTSThe absorption chiller-heater consists of the following components:

• evaporator

• absorber

• condenser

• generators

• solution heat exchangers to heighten the cycle efficiency

• pumps to circulate the refrigerant and solution in the cycle

• purge unit to remove non-condensable gas from the machine

CONTROL PANELThe absorption chiller-heater comes with a factory mounted and pre-wired control system. The control panel enclosure is equipped with a hinged access door with lock and key. The control panel includes a touch panel showing all system parameters in various lan-guages with numeric data in metric units. For details of the control panel, see SECTION 6 – OPERATION.

The unit is also equipped with two methods to start and stop operations:

• touch panel• external signal

SECTION 2 – PRODUCT DESCRIPTION

FIGURE 1 - YHAU-CGN/H-120~300EX(H/S) AND 360EX~1600EXW3(H/S)

FG

H

L

A

D

C

E

IJ

K

B

M

N

ITEM COMPONENTSA Cooling Water OutletB Condenser

C Low Temperature Generator

D High Temperature Generator

E Burner Fan MotorF Natural Gas InletG Burner FanH Control PanelI Solution PumpJ Cooling Water InletK Chilled/Hot Water InletL EvaporatorM Chilled/Hot Water OutletN Absorber

JOHNSON CONTROLS16

FORM 155.32-ICOM1.EN.GBISSUE DATE: 3/29/2018SECTION 2 – PRODUCT DESCRIPTION

HOW IT WORKS (DIRECT FIRED UNITS)The double effect (direct fired) absorption chiller-heat-er uses water as the refrigerant and lithium bromide (LiBr) as the absorbent. It is the strong affinity that these two substances have for one another that makes the chiller-heater cycle work. The vapor pressure of the lithium bromide solution is lower than the vapor pres-

FIGURE 2 - TWO STEP DIRECT FIRED ABSORPTION CHILLER-HEATER CYCLE DIAGRAM (COOLING MODE)

NOTE: Temperatures and pressures on this graphic are representative; actual values may differ.

sure of the refrigerant. The vapor pressure of the LiBr solution is directly related to the amount of refrigerant (water) present in the solution with the LiBr salt and the solution temperature. The entire absorption process occurs in almost a complete vacuum.

JOHNSON CONTROLS 17

SECTION 2 – PRODUCT DESCRIPTIONFORM 155.32-ICOM1.EN.GB ISSUE DATE: 3/29/2018

2

EVAPORATORLiquid refrigerant enters the evaporator and is distrib-uted over the top of the tube bundle. As the refrigerant droplets cover the outside surface of the tubes, the heat from the returning chilled water passing through the tubes causes the refrigerant to flash from a liquid to a vapor. The temperature at which this happens depends on the evaporator shell pressure which is dictated by the absorber section of the chiller-heater. The refriger-ant vapor passes through the mist eliminators and into the absorber section of the chiller-heater. As the liquid refrigerant passes down through the bundle of evapo-rator tubes, more and more of the refrigerant vapor-izes. The refrigerant remaining in a liquid state at the bottom drains into the refrigerant tank and is pumped back up the top of the tube bundle where the process is repeated.

ABSORBERConcentrated LiBr solution enters the absorber section of the chiller-heater and is sprayed over the absorber tube bundle. Because the vapor pressure of the con-centrated solution is very low, the refrigerant (water) vapor from the evaporator flows into the absorber and is absorbed into the LiBr solution. This mass transfer process lowers the concentration of the LiBr solution as the refrigerant (water) is absorbed into the solution. This dilution process generates heat and, if not cooled, would eventually stop as the solution temperature would rise with a corresponding rise in vapor pressure. This would be similar to closing the vanes or slowing down a centrifugal compressor on a centrifugal chiller where the load was constant. The water flowing inside the absorber tube bundle comes from the cooling tower and serves to cool the LiBr solution as it flows down over the tube bundle. This allows the absorption pro-cess to continue and the solution becomes more diluted as it absorbs more refrigerant vapors. When the LiBr solution reaches the bottom of the absorber section, it goes into the suction of the solution pump. The liquid is then pumped to the generators.

The following section describes the unique 2-step evaporator-absorber design of the YHAU-CG direct fired absorption chiller-heater.

TWO-STEP EVAPORATOR – ABSORBERThe evaporator, as well as the absorber, is split into two sections. This design, similar to a series-counter-flow chiller-heater arrangement along with the parallel flow cycle, enables lower LiBr solution concentrations. This reduces pressure, the potential for corrosion, and the risk of crystallization as well as improves efficiency in conjunction with other advanced components de-scribed later in this section.

The two evaporators are in series with respect to the chilled water flow through the tubes. In other words, the chilled water flows through the lower evaporator tubes first and then to the upper evaporator tubes. Each evaporator operates at a slightly different temperature and pressure. The refrigerant in the lower evaporator boils at a slightly higher temperature than in the upper evaporator, consequently cooling the chilled water in two steps.

The two absorber sections are split as well, with the strong solution first entering the top of the uppermost absorber and flowing down through the top absorber bundle. It then flows into the top of the lower absorber section. The strong solution entering the upper absorb-er takes advantage of its lower vapor pressure allowing the upper evaporator to operate at a lower pressure and temperature.

When the LiBr solution enters the lower absorber sec-tion it is somewhat diluted from the refrigerant vapor that boiled off in the upper evaporator. At this lower concentration the solution vapor pressure would nor-mally not be sufficient to provide an evaporator pres-sure low enough to satisfy the leaving chilled water design. However, the lower evaporator is the first step of the chilled water cooling cycle, and the dilute solu-tion’s vapor pressure is adequate to maintain the re-quired temperature and pressure in the lower evapora-tor.

The cooling tower water enters the lower absorber sec-tion first, keeping the vapor pressure of the weaker so-lution as low as possible.

Both the refrigerant (water) and LiBr dispersion sys-tem are gravity fed and made of stainless steel.

JOHNSON CONTROLS18


LD19880_a3

LG4

Evaporator(Upper)

Absorber(Upper)

Absorber(Lower)

Evaporator(Lower)

Concentrated LiBrRefrigerant

Chilled Water Out

Chilled Water

In

PLATE TYPE HEAT EXCHANGERSThe dilute (weak) LiBr solution leaving the absorber section is pumped through various plate type heat ex-changers (such as the low temperature heat exchanger, LTG refrigerant condensate heat exchanger, and high temperature heat exchanger) before it enters the high temperature generator and low temperature genera-tor sections. These plate type heat exchangers provide cycle efficiency by preheating the dilute solution. Pre-heating the dilute solution reduces the consumption of the driving heat source in the high temperature genera-tor section. The concentrated solution flows out of the generators and back through the various heat exchang-ers.

Concentrated Solution In

Dilute Solution In

Low Temp. Heat Exchanger

The relatively high temperature solution streams from the two generators are used to pre-heat the weak solu-tion stream leaving the absorber.

PARALLEL FLOWThe unique parallel flow divides the solution between the low temperature generator and the high tempera-ture generator sections into two parallel, balanced paths. The result is a safer and more efficient operation at a much lower pressure than conventional series-flow designs. The various solution-to-solution plate type heat exchangers optimize efficiency by enabling effec-tive heat transfer between the diluted (weak) and the concentrated LiBr solutions.

HIGH TEMPERATURE GENERATOR (HTG)YHAU’s high temperature generator section has the unique liquid tube design in which the dilute Lithium Bromide solution coming from the high temperature heat exchanger is inside the tubes. The products of combustion (exhaust gas from burning of natural gas) are on the shell side. The hot refrigerant vapor boiled off is sent to the low temperature generator. This leaves behind a strong solution which is returned through the high temperature heat exchanger.

The liquid tube design is efficient and compact with lower pressure drop as compared to the conventional smoke tube type design in which the exhaust gas is inside the tubes while the Lithium Bromide solution is on the shell side. Being more efficient, the exhaust gas leaving temperature is lower than the smoke tube design.

The liquid tube design also benefits from less volume of Lithium Bromide solution and hence faster startup time. It does not require any ceramic refractory com-pared to the conventional design, therefore improved reliability.

LOW TEMPERATURE GENERATOR (LTG)The hot refrigerant vapor from the high temperature generator heats up the dilute solution coming in from the low temperature heat exchanger. This vapor then condenses into hot refrigerant liquid and is sent to the condenser via the drain heat exchanger. The additional vapor produced in the LTG by heating up the dilute solution is sent to the condenser.

The LTG is of a falling film design, ensuring superior heat transfer and enhanced life by eliminating wear and tear at the tube supports.

JOHNSON CONTROLS 19

SECTION 2 – PRODUCT DESCRIPTIONFORM 155.32-ICOM1.EN.GB ISSUE DATE: 3/29/2018

2

CONDENSERThe cooling water from the absorber section enters into the condenser section. This helps condense the refrig-erant vapors produced in the LTG as well as the con-densed refrigerant from the drain heat exchanger. The liquid refrigerant is then sent back to the evaporator section through a U-pipe (liquid seal).

This completes the cooling cycle.

LD19980_a6

Condenser

Cooling Water Outlet

Condensed Refrigeration

CRYSTALLIZATIONAll absorption chiller-heaters that use lithium bromide and water as the solution/refrigerant pair are subject to crystallization. This is due to the fact that some areas of the unit operate with solution liquid concentration lev-els that are only possible at higher than the normal am-bient temperature surrounding the unit. For example, the solution concentration in the generator of a single effect absorption unit is typically 64.3% lithium bro-mide by weight. LiBr begins to crystallize at 43.3°C.

Crystallization is the result of the LiBr solution tem-perature going too low or the concentration too high. The LiBr solution becomes like slush. At this point the LiBr solution cannot absorb any more water and will start to solidify (crystallize).

Crystallization will occur in the solution heat exchang-er and sometimes even in the generator. It will also happen in pipes not well insulated where room temper-ature can affect the solution moving through the pipes.

You can prevent crystallization by making sure you keep the solution temperature high and the concentra-tion at the optimum percentage (64%).

Since the solution temperature in the generator is nor-mally high enough in most load conditions, no crystal-lization will occur as long as the higher solution tem-peratures are maintained. Special measures do have to be taken before the unit is shut down so that the solu-tion is sufficiently diluted in all areas of the unit to pre-vent crystallization during the off cycle, since the solu-tion temperature will eventually equal the surrounding ambient temperature.

All units employ some sort of dilution cycle, which fulfills this requirement. As long as the unit is allowed to dilute itself during an orderly shutdown sequence, the unit should be able to sit idle at fairly low plant room ambient temperatures for extended periods of time without any threat of crystallization. Typically, af-ter a dilution cycle, the average solution concentration within the chiller-heater will be below 45% lithium bromide by weight and will have no tendency to crys-tallize at normal ambient temperatures.

WHY DOES CRYSTALLIZATION OCCUR?The most common reason for crystallization is due to power failures. If a chiller-heater is running at full load and power is interrupted for a sufficient length of time, the concentrated solution in the high side of the unit (Condenser/Generator Section) will eventually cool down. Since no dilution cycle was performed, the solu-tion concentration in some areas of the unit may still be relatively high. If the temperature of this concentrated solution is allowed to fall low enough, the solution will reach its crystallization point. Plant room temperature, insulation quality, and the solution concentration all play a part in determining how long it will take before the unit will crystallize. See SECTION 7 – MAINTE-NANCE for information on water quality control and crystallization. The Duhring Diagram / PTX Chart shows the specific temperatures and pressures of the crystallization area. See Figure 69 on page 166 and Figure 70 on page 167.

JOHNSON CONTROLS20



JOHNSON CONTROLS 21


3

SECTION 3 – HANDLING, STORAGE, INSTALLATION AND REASSEMBLY

LD18119

FIGURE 3 - WARNING

Rigging and lifting should only be done by a professional rigger in accordance with a written rigging and lifting plan. The most appropriate rigging and lifting method will depend on job specific factors, such as the rigging equipment available and site needs. Therefore, a professional rigger must determine the rigging and lifting method to be used, and it is beyond the scope of this manual to specify rigging and lifting details.

This chiller-heater is for air conditioning or a cooling manufacturing process. Transport, store, and use this chiller-heater under the following conditions:

Installation location: Indoor, non-explosion area

Ambient temperature: 10 ~ 40°C

Humidity: 10 ~ 90% (RH%)

Altitude: 1000 m or lower

If the plant room will ever get below 10°C, you must have the cold ambient option.

JOHNSON CONTROLS22

FORM 155.32-ICOM1.EN.GBISSUE DATE: 3/29/2018SECTION 3 – HANDLING, STORAGE, INSTALLATION AND REASSEMBLY

INSPECTIONThe unit must be inspected prior to customer use by a Johnson Controls Service representative. All damage or possible damage must be reported to the transpor-tation company. For further details, see SECTION 5 - COMMISSIONING.

INSPECTION WINDOWThe inspection window of the exhaust gas duct or chimney must not be turned to the aisle side in case the exhaust gas duct or chimney has a problem from a unit failure or burner combustion deterioration. If it must be turned to the aisle side, install a guard fence around the inspection window.

INSTALLATION GUIDELINESGas pipe fittings must be installed by a qualified con-tractor. Defective gas piping can cause an oxygen- deficient accident or a fire.

When evacuating the nitrogen charge (from the fac-tory), be sure the area is properly ventilated. Failure to do this could result in suffocation.

When exhaust gas is emitted from the smokestack, it is critical that it does not mix with the cooling water in the cooling tower. This can lower the quality of the cooling water, resulting in corrosion and scale forma-tion. As sulfides and carbides contained in the exhaust gas are condensed, low temperature corrosion occurs, resulting in tube perforations. This can cause compli-cations with the chiller-heater, and may result in a seri-ous accident. The smokestack and cooling tower must be placed at least 5 meters apart. Wherever possible, the smokestack should be positioned downwind of the cooling tower, with regards to prevailing winds.

When storing the absorption chiller unit after it has been delivered, note the following potential issues:

1. Problems with machine in storage:

a. Breaking of thin pipes caused by freezing of the refrigerant (water) sealed in the machine and resulting air leak.

b. Breaking and air leak due to external dam-age.

c. Deterioration of electrical parts caused by soot and dust.

d. Deterioration of electrical parts caused by rainwater (moisture).

e. Rusting of the machine body caused by rain-water (moisture). Air leaks can cause serious damage and are costly repairs. Therefore, use diligence in keeping the machine body free from moisture at all times.

2. Problems and Preventative Measures

PROBLEM PREVENTATIVE MEASUREFreezing of

refrigerant in machine

Store the machine where the ambient temperature is higher than 0°C. If the ambient temperature drops below 0°C, use a heater to warm the machine. If a heater is not accessible, the following options are available to prevent freezing: • Extraction of the refrigerant• Addition of antifreeze to the refrigerant• Installation of a band heaterFor further instruction, contact your nearest authorized Johnson Controls Service Center.

External Damage

Avoid storing the machine in a place which is easily accessible or near a construction site. If this is unavoidable, use diligence to protect the machine. If the machine can not be protected fill the interior with N2. This possibly minimizes the amount of air leakage in the event of damage to the machine. This method, requires purging during machine operation and is effective in preventing corrosion of the machine interior. For further information on the sealing with N2 option, contact your nearest authorized Johnson Controls Service Center.

Soot & Dust To protect the machine from soot & dust (or other air particulates) cover the entire machine, including the control panel, instruments and gauges located on top of the machine with a vinyl sheet. Use caution not to apply too much pressure to the controls to prevent damage.

Rainwater Avoid storing the machine in areas that are exposed to rainwater or other standing water.

Humidity Ventilate the storage area to keep the humidity low. Silica gel can be effectively used to dehumidify the control panel and other machine parts.

JOHNSON CONTROLS 23

SECTION 3 – HANDLING, STORAGE, INSTALLATION AND REASSEMBLYFORM 155.32-ICOM1.EN.GB ISSUE DATE: 3/29/2018

3

Once the Silica gel absorbs moisture it can corrode electrical parts. It is important to replace this gel every six months. Always avoid storing the machine in areas where the humidity is 95%RH or higher and the temperature is 40°C or higher.

3. Periodic Inspection and Maintenance

a. Inspect the machine weekly for damage.

b. Check the machine compound gauge daily to verify there is no decline in vacuum and record the vacuum value (-101 to -95kPa). If the vacuum is below the low limit, contact your nearest authorized Johnson Controls Service Center immediately.

c. If the vacuum has dropped as a result of improper machine operation, contact your nearest authorized Johnson Controls Service Center immediately.

Use care that foreign matter does not en-ter the drain valve and air vent valve in the water chamber casing. Keep these valves fully open while the machine is in storage.

HOISTING THE MACHINEWhen hoisting the machine, attach a shackle to each of the four eye plates and lift the machine using care that the angle formed by the wire is within 60 degrees as shown in the figure below.

Use care not to apply shock to the machine. The ma-chine is a high-vacuum vessel containing a corrosive solution. Use diligence in protecting the machine as repair is labor intensive and costly.

Be sure to lift the machine horizontally. If the machine is inclined, the solution and refrigerant inside will shift producing an offset load. This can cause damage to the machine and pose a risk to the machine installer or per-sons moving the unit.

LD22931

THIS ANGLE MUST BE WITHIN 60 DEGREES4.3M OR MORE

EYE PLATE (EA) EYE PLATE (LG)

FIGURE 4 - HOISTING PROCEDURES (4-POINT LISTING)

JOHNSON CONTROLS24


MOVING THE MACHINE ON ROLLERSPlan the entrance of the machine.

Do not incline the machine more than 10 degrees. If the machine has to be inclined more than 10 degrees, the solution and refrigerant will need to be extracted beforehand.

Use care not to apply shock to the machine. The ma-chine is a high-vacuum vessel containing a corrosive solution. Use diligence in protecting the machine as repair is labor intensive and costly.

When a skid base is used to move the machine on roll-ers, secure the skid base and place the machine legs evenly on the skid base before moving the machine on rollers.

LD22930

Maximum Machine Width W Maximum Machine Length L

Max

imum

Mac

hine

Hei

ght

Skid Base

Approx. Approx.

App

rox.

FIGURE 5 - MOVING THE MACHINE ON ROLLERS

JOHNSON CONTROLS 25


3

If using a tir-roller to move the machine, fit the tir-roller set to each of the four holes shown in the figure below.

LD22928

TIR ROLLER SET

FIGURE 6 - MOVING THE MACHINE ON TIR-ROLLERS

JOHNSON CONTROLS26


LD22928

TIR ROLLER SET

FIGURE 7 - FITTING TRI-ROLLERS TO THE MACHINE

When jacking the machine, be sure to fit the jack in each of the jack-up supports as shown below.

LD22944

Reinforcement

Jack-up Support

High Temperature Generator

Jack-up Support

Jack

Machine Legs

FIGURE 8 - JACK-UP PROCEDURE

JOHNSON CONTROLS 27


3

Operate the front and rear jacks alternately.

Do not jack up the machine more than about 20 mm at a time. Each time the machine is jacked up, adhere it with a suitable crosstie.

Use the jack-up support on the main shell of the body as shown below. If using a high temperature generator, use secondary jack-up support.

LD22935

Jack-up Support

Jack-up Support

FIGURE 9 - JACK-UP SUPPORT

JOHNSON CONTROLS28


STRUCTURAL SUPPORT AND INSTALLATIONStructural support of the unit must be provided as in-dicated for maximum efficiency. Maintain adequate maintenance space around the chiller-heater so work can be safely performed. Foundation bolts should be installed in level concrete to secure the unit and pre-vent shifting.

It is the customer's responsibility to furnish the founda-tion bolts, nuts and washers. Rubber vibration isolator pads must be fitted to the unit base before installation as shown in Figure 10 on page 31. The tolerance for leveling is 1 inch in 1,000 inches or 1 mm in 1,000 mm.

Waterproof the floor on which the unit will be installed in case of future leaks.

Apply thermal insulation to the chiller-heater. Refer to the installation instructions and see Table 2 on page 34. Be sure to install insulation or a fence on the exhaust gas duct outer cover to prevent burns or a fire.

Dimensions can be found in Table 5 on page 38 and Table 6 on page 38. For the external dimensions of the unit and foundation, see the full view of the unit and the foundation drawing. For serviceability and maintenance, leave a minimum of 1,000 mm space on all sides of the chiller-heater. To ensure there is ade-quate clearance for tube removal, the space at the end should equal 1.25 x the length of the unit. See Table 5 on page 38 and Table 6 on page 38.

INDOOR AND OUTDOOR INSTALLATIONThis chiller-heater is designed to be used indoors. Ex-posure to the elements can compromise the integrity of the thermal insulation. Minimum allowable tempera-ture for outdoor installation is 0°C, provided that the chiller-heater includes the cold ambient option. Out-door installations will be considered on a case-by-case basis by a Johnson Controls Service Representative and proper instruction for installation will be provided at that time.

When installing the unit indoors, have a specialized company provide a suitable flue/smokestack and air supply/exhaust equipment. Insufficient air supply or improper exhaust can cause oxygen starvation and a fire. The interlock of the control panel should be set up with a supply/exhaust fan to create a proper draft.

Do not install a chimney near the air supply.

ELECTRICAL

The electrical work must be performed in accordance with the wiring diagrams, delivery specifications, and technical standards for electrical equipment found in SECTION 4 - TECHNICAL DATA. Use the specified cables to complete the wiring, and fasten them to the according terminals securely. Loose fitting cables can cause the terminals to heat up, resulting in fire or elec-trical shock. Electrical work must be supervised or completed by a Johnson Controls Service Representa-tive.

A ground fault (earth leakage) circuit breaker is not installed for this chiller -heater unit. Install an adequate ground fault circuit breaker at the primary side of the chiller-heater unit.

PRECAUTIONS FOR USE Ventilate the storage area as much as possible to keep the humidity low. Avoid storing the unit in an area where the humidity is 95%RH or higher, and the tem-perature is 40°C (104°F) or higher. For more informa-tion about long term-storage, refer to Long-term Stor-age Requirements (Form 50.20-NM1) and Long-term Storage Checklist (Form 50.20-CL4).

Silica gel can be used on a temporary basis to dehu-midify the control panel, but should be removed once the moisture is absorbed. Otherwise, the silica gel can corrode the electrical parts of the control panel.

JOHNSON CONTROLS 29


3

Do not allow negative pressure or any devices that cre-ate negative pressure to operate in the area around the chiller-heater. This may cause incomplete combustion, resulting in gas inhalation and hypoxia.

To prevent injuries, do not put a finger, a rod, or any-thing else into any rotary parts of the vacuum pump.

A caution label for a rotating object is pasted around the belt cover of the vacuum pump. When replacing the oil in the vacuum pump, belt, or performing maintenance work, stop the chiller-heater and be sure to turn off the main circuit breaker (MCB1) and lockout/tagout the unit. If this is not done, the vacuum pump could start abruptly and cause injury or damage to the unit.

Do not place anything heavy on the machine or its con-trol panel; it may fall and injure a worker.

Do not climb up the unit without safety harnessing.

Contact your local Johnson Controls service office for inspection and maintenance of the unit. Improper inspection and maintenance can not only cause a ma-chine problem but also injure workers.

Keep the chilled/hot water and cooling water under the maximum usage pressure. If they exceed the maximum usage pressure, they may spout or leak and may cause an electric leak and a burn.

Do not change the set values of the safety devices and protective devices. Operation with incorrect set values can cause a problem.

In the event that the circuit breaker or disconnect switch is activated, eliminate the cause of the problem before restarting the unit. See SECTION 8 – TROU-BLESHOOTING.

The shut off valve for the pressure release valve must constantly remain open. It may only be closed when

servicing the pressure relief valve. The unit must never be operated with this shut off valve closed.

Verify the main valve for the fuel gas is closed before servicing the chiller-heater. Only a Johnson Controls service representative can modify the main gas valve or any of the fuel control devices after the chiller-heat-er has been serviced. Operation of the chiller-heater by an inexperienced person could result in incomplete combustion, fire, or injury.

Do not touch any part or component displaying a high tem perature caution label while the machine is in opera tion. This includes the control panel, solution pump, vacuum pump and any piping going to or from the solution and vacuum pump.

Periodically inspect the strainers to prevent clogging and incomplete combustion.

Wear protective gloves and goggles when operating the chiller-heater.

Do not operate the machine with panel doors open or removed. Exposure to rainwater or wind pressure can damage the electrical parts of the unit or cause leakage.

During service and maintenance work, be sure to turn OFF the main circuit breaker (MCB1) and follow all required Lockout and/or Tagout procedures Close the main valve of the fuel gas line. Failure to close this line may cause electric shock or injury.

If the cables of the solution pump, refrigerant pump, burner fan, and/or vacuum pump are disconnected for service and maintenance work, be sure to check the ro-tating direction of the pump motor. If not, the chiller-heater may malfunction. When changing the oil of the purge pump, be sure to stop the purge operation.

In case of an accident such as death or serious damage of personnel, turn OFF the circuit breaker (MCB1) to stop the chiller-heater immediately.

JOHNSON CONTROLS30


LEAK TESTINGWhen leak testing, verify the area is properly venti-lated. Failure to do so may result in suffocation.

ELECTRICAL SHOCK CAUTIONSDo not touch any switch in the control panel with wet hands; this can cause electric shock.

Do not touch the wiring in the control panel; this can cause electric shock.

Do not touch any part other than the control panel of the machine and the valves described in the operating manual; this can cause a problem and injury.

Apply only the specified source voltage. Application of a different source voltage can cause a fire and elec-tric shock.

Welding should only be done in certain circumstances. Be careful not to compromise the integrity of the ves-sel. Prior to welding, verify that the electrical system is grounded properly. Failure to do this can result in electrical shock, injury, and/or damage to the chiller-heater.

Do not splash water over the machine and its control panel; this can cause an electric shock.

A warning label for electric shock is pasted at the con-trol panel, solution pump, refrigerant pump, the termi-nal box of the vacuum pump motor, and the burner fan motor. Prior to opening the terminal box, be sure to stop the chiller-heater and turn OFF the main circuit breaker (MCB1). If not, electric shock may result.

USE OF GASIf the smell of gas is present, do not operate the ma-chine, touch the control panel or press any buttons until the smell of gas vanishes.

Only use the fuel specified on the unit name plate.

Inspect the exhaust duct periodically to check for gas leaks.

If black and white smoke is produced, stop the ma-chine and contact your local Johnson Controls Ser-vice Office for assistance.

Do not block the outer cover suction port or exhaust port. This can cause oxygen starvation.

VIBRATION AND ISOLATION DETAILSBefore installing the unit, fit rubber vibration isolators to the unit base as shown in Figure 10 on page 31. Use liners to adjust the levelness of the unit. For unit dimensions, see Table 5 on page 38 and Table 6 on page 38.

Do not leave any flammable substance or easily combustible object near the machine, flue, smokestack or oil tank.

JOHNSON CONTROLS 31


3

LD20186

NutWasher

Foundation Bolt

Base

Rubber Vibration Isolator

Sole Plate

NutWasher

Filling with Mortar

Foundation Bolt

Rubber Vibration Isolator

Sole Plate

FIGURE 10 - VIBRATION AND ISOLATION DETAILS

JOHNSON CONTROLS32


TABLE 1 - NOZZLE ARRANGEMENTS 120-300EX(H/S) AND 360EX(H/S)-1600EXW3(H/S)

YHAU-CGN/H

NOZZLE LOCATION

CHILLED/HOT WATER COOLING WATER GAS INLET

EXHAUST GAS

OUTLETINLET OUTLET INLET OUTLET

120-300EX(H/S) A

ODD PASS

BA

ODD PASS

BB A

EVEN PASS

AEVEN PASS

A

360EX(H/S)-1600EXW3(H/S) B

ODD PASS

AB

ODD PASS

AB A

EVEN PASS

BEVEN PASS

B

NOTE: These images are representations of nozzle arrangements. Reference general arrangement drawings found in the contract documents for detailed nozzle locations for each specific unit.

FIGURE 11 - YHAU-CGN/H-120-300EX(H/S) AND 360EX(H/S)-1600EXW3(H/S) NOZZLE LOCATIONS

LD20182

Gas Fired (180-300EXS/HNG)

B Side A Side

1 2

3

4 5

678

ITEM DESCRIPTION1 Chilled/Hot Water Outlet (Odd Pass)2 Cooling Water Outlet (Odd Pass)3 Gas Inlet4 Cooling Water Outlet (Even Pass)5 Chilled/Hot Water Outlet (Even Pass)6 Chilled/Hot Water Inlet7 Cooling Water Inlet8 Exhaust Gas Outlet

LD20183

Gas Fired (360-1400EXS/HNG)

B Side A Side

1

4

7

8

2

3

5

6

ITEM DESCRIPTION1 Chilled/Hot Outlet (Even Pass)2 Cooling Water Outlet (Even Pass)3 Gas Inlet4 Cooling Water Inlet5 Chilled/Hot Water Inlet6 Cooling Water Outlet (Odd Pass)7 Chilled/Hot Water Outlet (Odd Pass)8 Exhaust Gas Outlet

120-300EX(H/S) 360EX(H/S)-1600EXW3(H/S)

JOHNSON CONTROLS 33


3

FIGURE 12 - FUEL GAS PIPING SYSTEM

LD20180a

MM M

A

G

MALPA

BLW

PI PA

GL

MM M

A

G

MALPA

BLW

PI PAGHGL

MM M

A

G

MALPA

BLW

PI PA

G

G

G

GHGL

LOW PRESSURE TYPE (Full Automatic Standard)

City Gas

Flow Meter

Pressure Gauge

Sco

pe o

f S

uppl

y

Strainer

Electric OperatedBall Valve (Option)

Gas Pressure Low-Limit Switch

Blower

Air Pressure Switch

Electric OperatedButterfly Valve Main

Burner

Pilot Burner

Gas Pressure Govenor

Main Safety Shut-Off Valve

CockElectric OperatedButterfly Valve

Pilot Safety Shut-Off Valve

Cock Cock

City Gas

Flow Meter

Sco

pe o

f S

uppl

y

Strainer

Electric OperatedBall Valve (Option)

Blower

Air Pressure Switch

Gas Pressure High-Limit Switch

Main Burner

Pilot Burner

Electric OperatedButterfly Valve Pressure

GaugeMain Safety Shut-Off Valve

CockCock

Cock CockGas Pressure Govenor


Electric OperatedButterfly Valve

INTERMEDIATE PRESSURE TYPE (Full Automatic Standard)

City Gas

Flow Meter

Sco

pe o

f S

uppl

y

StrainerElectric OperatedBall Valve (Option)

Blower

Air Pressure Switch

Gas Pressure High-Limit Switch

Main Burner

Pilot Burner

Main Safety Shut-Off Valve


Gas Pressure Control Valve

Cock

Gas Pressure Govenor

Electric OperatedButterfly Valve

Electric OperatedButterfly Valve Pressure

Gauge

Cock

HIGH PRESSURE TYPE (Full Automatic Option)

Cock

Cock

JOHNSON CONTROLS34


HOT INSULATION/COLD INSULATION PROCEDURE

4. The recommended materials and their thickness for hot insulation/cold insulation are shown in Table 2 on page 34.

5. Use a bonding agent, iron wire, iron band, or other recommended bonding agents, to fix the hot insu-lation/cold insulation materials. Never rivet them. The use of welding pins is not recommended.

6. Make the outer covering, flanged parts, and evap-orator water chamber casing easily removable to facilitate servicing.

TABLE 2 - INSULATING MATERIAL AND THICKNESSHOT INSULATION COLD INSULATION

Material Rock wool or glass wool Polyurethane foam, polystyrene foam, or glass woolThickness 50 mm 50 mm

TABLE 3 - POINTS REQUIRING HOT/COLD INSULATIONPOINT REQUIRING HOT INSULATION

POINT REQUIRING COLD INSULATION

POINT THAT MUST NOT BE HEAT-INSULATED

High Temperature Generator Evaporator Shell Sight GlassFlue Evaporator Water Chamber Case Valve ManipulatorHeat Exchanger Refrigerant Spray Piping Pressure GaugeLow Temperature Generator Refrigerant Blow Piping Thermometer Insertion HolePoint Carrying "Hot Insulation" Label • Point Carrying "Cold Insulation" Label

• Valve for vacuuming (factory use only)Relay Insertion Hole

LD20188

Hot Insulation

Cold Insulation

FIGURE 13 - HOT/COLD INSULATION

7. The points that require hot insulation/cold insula-tion are shown in Table 3 on page 34.

8. The casing of the absorber/condenser water cham-ber does not require hot insulation/cold insulation. If insulation is used, make it easily removable.

9. For the high temperature generator, install the in-sulation in a way to permit removing the front, sides, and rear separately. In addition, make a re-movable part around the rear end for inspection of the temperature relay and sensor.

JOHNSON CONTROLS 35


3

LD20178

FIGURE 14 - INTERIOR OF CONTROL PANEL (MM)

FIGURE 15 - EXTERIOR OF CONTROL PANEL (MM)

JOHNSON CONTROLS36



JOHNSON CONTROLS 37


4

SECTION 4 - TECHNICAL DATA

This section includes technical information about the unit, such as weight, dimensions, electrical data, wiring, and sound data.

TABLE 4 - TYPICAL OPERATIONAL RANGEPARAMETER ALLOWABLE RANGES

Chilled Water In 7 - 25°CChilled Water Out 4 - 16°CCooling Water In 20 - 37°CCooling Water Out 25 - 42°C

Natural Gas Inlet Pressure

120 - 300 RT: 2 - 250 kPa(g)360 - 1600 RT: 10 - 250 kPa(g)

The numbers shown in Table 4 on page 37 are the allowable ranges for each parameter. Not all combi-nations are possible. Please check with your Johnson Controls Service Center to see if your temperature dif-ferential is possible.

JOHNSON CONTROLS38

FORM 155.32-ICOM1.EN.GBISSUE DATE: 3/29/2018SECTION 4 - TECHNICAL DATA

TABLE 5 - STANDARD EFFICIENCY

YHAU

WEIGHTS - CGN WEIGHTS - CGHMAXIMUM SHIPPING

(TON)

OPERATING (TON)

EMERGENCY (FILLED WITH WATER) (TON)

MAXIMUM SHIPPING

(TON)

OPERATING (TON)


120EXS 7.5 8.1 11.4150EXS 9.0 8.1 11.4180EXS 9.0 9.7 13.9240EXS 10.3 11.1 16.4300EXS 11.8 12.7 19.2360EXS 13.6 14.9 25.2400EXS 15.3 16.7 29.0450EXS 14.5 16.2 26.1 15.6 17.3 27.7500EXS 16.5 18.3 28.7 17.3 19.1 30.0560EXS 18.4 20.4 32.8 19.2 21.2 34.3600EXS 20.6 22.8 36.3 20.9 23.1 37.2700EXS 22.8 25.2 40.7 23.1 25.5 41.8800EXS 25.0 27.8 46.4 28.1 30.9 48.9

900EXWS 29.0 32.0 48.9 30.5 33.5 51.31000EXWS 33.4 37.5 56.1 35.0 39.1 58.61100EXWS 35.9 40.4 60.1 38.5 43.0 63.7

1200EXW3S 38.4 43.4 69.9 41.0 46.0 73.81300EXW3S 41.9 47.1 75.4 45.3 50.5 80.21400EXW3S 44.4 49.8 79.8 47.8 53.2 84.71500EXW3S 43.1 55.2 87.1 44.3 56.8 90.31600EXW3S 44.4 56.7 90.4 45.6 58.3 93.7

TABLE 6 - HIGH EFFICIENCY

YHAU

WEIGHTS - CGN WEIGHTS - CGHMAXIMUM SHIPPING

(TON)

OPERATING (TON)


MAXIMUM SHIPPING

(TON)

OPERATING (TON)


120EXH 8.0 8.6 11.9150EXH 8.0 8.6 11.9180EXH 9.5 10.2 14.4240EXH 10.8 11.6 16.9300EXH 12.3 13.2 19.7360EXH 14.3 15.6 25.9400EXH 16.0 17.4 29.7450EXH 15.2 16.9 26.8 16.3 18.0 28.4500EXH 17.3 19.1 29.5 18.1 19.9 30.8560EXH 19.3 21.3 33.7 20.1 22.1 35.2600EXH 21.7 23.8 37.3 22.0 24.1 38.3700EXH 24.0 26.4 41.9 24.3 26.7 43.0800EXH 26.4 29.2 46.4 29.5 32.3 50.3

900EXWH 30.6 33.6 50.5 32.1 35.1 52.91000EXWH 35.4 39.5 58.1 37.0 41.1 60.61100EXWH 37.9 42.4 62.1 40.5 45.0 65.7

1200EXW3H 40.4 45.4 71.9 43.0 48.0 75.81300EXW3H 43.9 49.1 77.4 47.3 52.5 82.21400EXW3H 46.4 51.8 81.8 43.8 55.2 86.71500EXW3H 44.9 57.0 88.9 46.1 58.6 92.11600EXW3H 46.2 58.5 92.2 47.4 60.1 95.5

NOTE: Data contained in table are approximates.

JOHNSON CONTROLS 39

SECTION 4 - TECHNICAL DATAFORM 155.32-ICOM1.EN.GB ISSUE DATE: 3/29/2018

4

TABLE 7 - PHYSICAL DATA (WITH EXHAUST GAS TEMP. APPROXIMATELY 220°C) - CGN

YHAU-CGN

EXHAUST GAS

VOLUMEM3/H

OUTLINE DIMENSIONTUBE

EXTRACTING SPACE

HOT INSULATION

AREA M2

COLD INSULATION

AREA M2

HOLDING VOLUME

LENGTH WIDTH HEIGHT

CHILLED/HOT

WATER M3

COOLING WATER

M3

120EX(H/S) 1,325 3,200 2,200 2,500 2,000 17.0 8.0 0.21 0.32150EX(H/S) 1,325 3,200 2,200 2,500 2,000 17.0 8.0 0.21 0.32180EX(H/S) 1,707 3,600 2,200 2,500 2,550 18.0 10.0 0.25 0.38240EX(H/S) 2,064 4,300 2,200 2,500 3,200 22.0 12.0 0.30 0.45300EX(H/S) 2,650 4,700 2,200 2,500 4,000 26.0 14.0 0.36 0.54360EX(H/S) 3,421 5,930 2,260 2,500 5,000 33.0 14.0 0.46 0.81400EX(H/S) 3,421 6,430 2,260 2,500 5,500 36.0 15.0 0.50 0.86450EX(H/S) 3,421 5,090 2,220 3,102 4,000 33.0 14.0 0.55 1.17500EX(H/S) 3,421 5,590 2,390 3,102 4,500 36.0 16.0 0.60 1.25560EX(H/S) 4,275 6,090 2,390 3,102 5,000 39.0 17.0 0.65 1.39600EX(H/S) 5,131 6,590 2,520 3,102 5,500 40.0 19.0 0.71 1.48700EX(H/S) 5,131 7,390 2,660 3,102 6,300 41.0 20.0 0.79 1.61800EX(H/S) 6,000 8,090 2,710 3,102 7,000 46.0 23.0 0.88 1.88

900EXW(H/S) 7,142 6,800 3,200 3,150 5,700 53.0 26.0 0.99 2.041000EXW(H/S) 7,142 7,600 3,200 3,150 6,300 56.0 35.0 1.40 2.671100EXW(H/S) 8,629 8,300 3,200 3,150 7,000 63.0 38.0 1.52 3.00

1200EXW3(H/S) 8,629 8,300 3,200 3,300 7,000 67.0 43.0 1.68 3.281300EXW3(H/S) 9,970 8,800 3,300 3,300 7,500 77.0 46.0 1.80 3.401400EXW3(H/S) 9,970 9,300 3,300 3,300 8,000 81.0 48.0 1.89 3.55

1500EXW3(H/S) 11,377 9,800 3,600 3,550 8,500 91.0 51.0 1.99 3.70

1600EXW3(H/S) 11,377 10,300 3,600 3,550 9,000 95.0 53.0 2.08 3.85

TABLE 8 - PHYSICAL DATA (WITH EXHAUST GAS TEMP. APPROXIMATELY 220°C - CGH

YHAU-CGH

EXHAUST GAS

VOLUME M3/H

OUTLINE DIMENSIONTUBE

EXTRACTING SPACE

HOT INSULATION

AREA M2

COLD INSULATION

AREA M2

HOLDING VOLUME

LENGTH WIDTH HEIGHTCHILLED/

HOT WATER M3

COOLING WATER M3

120EX(H/S)150EX(H/S)180EX(H/S)240EX(H/S)300EX(H/S)360EX(H/S)400EX(H/S)450EX(H/S) 4,275 5,090 2,880 3,102 4,000 36.0 14.0 0.55 1.17500EX(H/S) 5,131 5,590 2,980 3,102 4,500 40.0 16.0 0.60 1.25560EX(H/S) 5,131 6,090 2,980 3,102 5,000 43.0 17.0 0.65 1.39600EX(H/S) 6,000 6,590 2,980 3,102 5,500 43.0 19.0 0.71 1.48700EX(H/S) 7,142 7,390 2,980 3,102 6,300 44.0 20.0 0.79 1.61800EX(H/S) 7,142 8,090 3,270 3,102 7,000 52.0 23.0 0.88 1.88

900EXW(H/S) 8,629 6,800 3,270 3,150 5,700 59.0 26.0 0.99 2.041000EXW(H/S) 8,629 7,600 3,300 3,150 6,300 62.0 35.0 1.40 2.671100EXW(H/S) 9,970 8,300 3,300 3,150 7,000 69.0 38.0 1.52 3.001200EXW(H/S) 9,970 8,300 3,300 3,300 7,000 73.0 43.0 1.68 3.28

1300EXW3(H/S) 11,377 8,800 3,600 3,550 7,500 84.0 46.0 1.80 3.40

1400EXW3(H/S) 11,377 9,300 3,600 3,550 8,000 88.0 48.0 1.89 3.55

1500EXW3(H/S) 12,641 9,800 3,600 3,550 8,500 96.0 51.0 1.99 3.70

1600EXW3(H/S) 12,641 10,300 3,600 3,550 9,000 100.0 53.0 2.08 3.85

JOHNSON CONTROLS40


TABLE 9 - ELECTRICAL DATA TABLE 9 - ELECTRICAL DATA (CONT'D)

YHAU-CGN POWER SOURCE (V-PH-HZ)

MAIN BREAKER SOLUTION CIRCULATION PUMP

SOLUTION SPRAY PUMP

YHAU-CGN

REFRIGERANT PUMP VACUUM PUMP BURNER FAN TOTAL

CAPACITY KVA

TOTAL CONSUMPTION

KW

SCCR KARATED

CURRENTFRAME

SIZE KW FLA LRA KW FLA LRA KW FLA LRA KW FLA LRA KW FLA LRA

120 EX(H/S)AC380V-3Ph-50Hz

32 A 63 A 2.26.1 23.0

1.13.4 23.0

120 EX(H/S) 0.21.1 4.2

0.751.8 9.0

0.751.8 12.9 9.6 7.7

6AC400V-3Ph-50HZ 5.8 24.0 3.45 24.0 1.12 4.4 1.8 9.0 1.9 13.1 10.0 8.0


32 A 63 A 2.26.1 23.0

1.13.4 23.0

150 EX(H/S) 0.21.1 4.2

0.751.8 9.0

0.751.8 12.9 9.6 7.7

6AC400V-3Ph-50Hz 5.8 24.0 3.45 24.0 1.12 4.4 1.8 9.0 1.9 13.1 10.0 8.0


32 A 63 A 2.26.1 23.0

2.26.1 23.0

180 EX(H/S) 0.41.6 4.2

0.751.8 9.0

0.751.8 12.9 11.8 9.4

6AC400V-3Ph-50Hz 5.8 24.0 5.8 24.0 1.65 4.4 1.8 9.0 1.9 13.1 12.0 9.6


32 A 63 A 2.26.1 23.0

2.26.1 23.0

240 EX(H/S) 0.41.6 4.2

0.751.8 9.0

1.53.4 22.5 12.8 10.2

6AC400V-3Ph-50Hz 5.8 24.0 5.8 24.0 1.65 4.4 1.8 9.0 3.4 23.7 13.1 10.5


32 A 63 A 3.08.1 29.0

2.26.1 23.0

300 EX(H/S) 0.41.6 4.2

0.751.8 9.0

1.53.4 22.5 14.1 11.3

6AC400V-3Ph-50Hz 7.8 30.0 5.8 24.0 1.65 4.4 1.8 9.0 3.4 23.7 14.5 11.6


32 A 63 A 3.08.1 29.0

2.26.1 23.0

360 EX(H/S) 0.41.6 4.2

0.751.8 9.0

2.24.8 31.5 15.0 12.0

6AC400V-3Ph-50Hz 7.8 30.0 5.8 24.0 1.65 4.4 1.8 9.0 4.8 31.9 15.4 12.4


32 A 63 A 3.08.1 29.0

2.26.1 23.0

400 EX(H/S) 0.41.6 4.2

0.751.8 9.0

2.24.8 31.5 15.0 12.0

6AC400V-3Ph-50Hz 7.8 30.0 5.8 24.0 1.65 4.4 1.8 9.0 4.8 31.9 15.4 12.4


40 A 63 A 5.514.2 60.0

2.26.1 23.0

450 EX(H/S) 0.41.6 4.2

0.751.8 9.0

2.24.8 31.5 19.1 15.2

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 4.8 31.9 19.4 15.5


40 A 63 A 5.514.2 60.0

2.26.1 23.0

500 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


40 A 63 A 5.514.2 60.0

2.26.1 23.0

560 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


40 A 63 A 5.514.2 60.0

2.26.1 23.0

600 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


40 A 63 A 5.514.2 60.0

2.26.1 23.0

700 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


50 A 63 A 5.514.2 60.0

2.26.5 20.3

800 EX(H/S) 0.41.6 4.2

0.751.8 9.0

5.510.8 100.0 23.3 18.6

6AC400V-3Ph-50Hz 13.5 63.0 6.2 21.0 1.65 4.4 1.8 9.0 10.4 105.0 23.5 18.8


50 A 63 A 5.514.2 60.0

2.26.5 20.3

900 EX(H/S) 1.33.9 11.9

0.751.8 9.0

7.514.7 144.0 27.4 21.9

6AC400V-3Ph-50Hz 13.5 63.0 6.2 21.0 3.8 12.8 1.8 9.0 14.2 147.0 27.7 22.8

1000 EXW(H/S)AC380V-3Ph-50Hz

63 A 63 A 7.519.8 68.6

2.26.5 20.3

1000 EXW(H/S) 1.33.9 11.9

0.751.8 9.0

7.514.7 144.0 30.0 24.8

6AC400V-3Ph-50Hz 19.2 72.0 6.2 21.0 3.8 12.8 1.8 9.0 14.2 147.0 31.6 25.3


80 A 125 A 7.519.8 60.0

3.710.6 34.0

1100 EXW(H/S) 1.54.7 12.5

0.751.8 9.0

7.514.7 144.0 34.3 27.4

10AC400V-3Ph-50Hz 19.2 63.0 10.1 36.0 4.5 13.0 1.8 9.0 14.2 147.0 34.8 27.8

1200 EXW3(H/S)AC380V-3Ph-50Hz

80 A 125 A 7.519.8 60.0

3.710.6 20.3

1200 EXW3(H/S) 1.54.7 11.9

0.751.8 9.0

7.514.7 144.0 34.3 27.4

10AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 14.2 147.0 34.8 27.8


80 A 125 A 7.519.8 60.0

3.710.6 20.3

1300 EXW3(H/S) 1.54.7 11.9

0.751.8 9.0

1122.0 126.0 39.1 31.3

10AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 21.0 199.0 39.5 31.6


80 A 125 A 7.519.8 60.0

3.710.6 20.3

1400 EXW3(H/S) 1.54.7 11.9

0.751.8 9.0

1122.0 126.0 39.1 31.3

10AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 21.0 199.0 39.5 31.6

1500 EXW3(H/S)AC380V-3PH-50HZ

80 A 125 A 7.519.8 60.0

3.710.6 20.3

1500 EXW3(H/S) 1.54.7 11.9

0.751.8 9.0

1529.6 198.0 44.1 35.3

10AC400V-3PH-50HZ 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4


80 A 125 A 7.519.8 60.0

3.710.6 20.3

1600 EXW3(H/S) 1.54.7 11.9

0.751.8 9.0

1529.6 198.0 44.1 35.3

10AC400V-3PH-50HZ 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4

JOHNSON CONTROLS 41


4

TABLE 9 - ELECTRICAL DATA TABLE 9 - ELECTRICAL DATA (CONT'D)

YHAU-CGN POWER SOURCE (V-PH-HZ)


SOLUTION SPRAY PUMP

YHAU-CGN


CAPACITY KVA

TOTAL CONSUMPTION

KW

SCCR KARATED

CURRENTFRAME



32 A 63 A 2.26.1 23.0

1.13.4 23.0

120 EX(H/S) 0.21.1 4.2

0.751.8 9.0

0.751.8 12.9 9.6 7.7

6AC400V-3Ph-50HZ 5.8 24.0 3.45 24.0 1.12 4.4 1.8 9.0 1.9 13.1 10.0 8.0


32 A 63 A 2.26.1 23.0

1.13.4 23.0

150 EX(H/S) 0.21.1 4.2

0.751.8 9.0

0.751.8 12.9 9.6 7.7

6AC400V-3Ph-50Hz 5.8 24.0 3.45 24.0 1.12 4.4 1.8 9.0 1.9 13.1 10.0 8.0


32 A 63 A 2.26.1 23.0

2.26.1 23.0

180 EX(H/S) 0.41.6 4.2

0.751.8 9.0

0.751.8 12.9 11.8 9.4

6AC400V-3Ph-50Hz 5.8 24.0 5.8 24.0 1.65 4.4 1.8 9.0 1.9 13.1 12.0 9.6


32 A 63 A 2.26.1 23.0

2.26.1 23.0

240 EX(H/S) 0.41.6 4.2

0.751.8 9.0

1.53.4 22.5 12.8 10.2

6AC400V-3Ph-50Hz 5.8 24.0 5.8 24.0 1.65 4.4 1.8 9.0 3.4 23.7 13.1 10.5


32 A 63 A 3.08.1 29.0

2.26.1 23.0

300 EX(H/S) 0.41.6 4.2

0.751.8 9.0

1.53.4 22.5 14.1 11.3

6AC400V-3Ph-50Hz 7.8 30.0 5.8 24.0 1.65 4.4 1.8 9.0 3.4 23.7 14.5 11.6


32 A 63 A 3.08.1 29.0

2.26.1 23.0

360 EX(H/S) 0.41.6 4.2

0.751.8 9.0

2.24.8 31.5 15.0 12.0

6AC400V-3Ph-50Hz 7.8 30.0 5.8 24.0 1.65 4.4 1.8 9.0 4.8 31.9 15.4 12.4


32 A 63 A 3.08.1 29.0

2.26.1 23.0

400 EX(H/S) 0.41.6 4.2

0.751.8 9.0

2.24.8 31.5 15.0 12.0

6AC400V-3Ph-50Hz 7.8 30.0 5.8 24.0 1.65 4.4 1.8 9.0 4.8 31.9 15.4 12.4


40 A 63 A 5.514.2 60.0

2.26.1 23.0

450 EX(H/S) 0.41.6 4.2

0.751.8 9.0

2.24.8 31.5 19.1 15.2

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 4.8 31.9 19.4 15.5


40 A 63 A 5.514.2 60.0

2.26.1 23.0

500 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


40 A 63 A 5.514.2 60.0

2.26.1 23.0

560 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


40 A 63 A 5.514.2 60.0

2.26.1 23.0

600 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


40 A 63 A 5.514.2 60.0

2.26.1 23.0

700 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


50 A 63 A 5.514.2 60.0

2.26.5 20.3

800 EX(H/S) 0.41.6 4.2

0.751.8 9.0

5.510.8 100.0 23.3 18.6

6AC400V-3Ph-50Hz 13.5 63.0 6.2 21.0 1.65 4.4 1.8 9.0 10.4 105.0 23.5 18.8


50 A 63 A 5.514.2 60.0

2.26.5 20.3

900 EX(H/S) 1.33.9 11.9

0.751.8 9.0

7.514.7 144.0 27.4 21.9

6AC400V-3Ph-50Hz 13.5 63.0 6.2 21.0 3.8 12.8 1.8 9.0 14.2 147.0 27.7 22.8


63 A 63 A 7.519.8 68.6

2.26.5 20.3

1000 EXW(H/S) 1.33.9 11.9

0.751.8 9.0

7.514.7 144.0 30.0 24.8

6AC400V-3Ph-50Hz 19.2 72.0 6.2 21.0 3.8 12.8 1.8 9.0 14.2 147.0 31.6 25.3


80 A 125 A 7.519.8 60.0

3.710.6 34.0

1100 EXW(H/S) 1.54.7 12.5

0.751.8 9.0

7.514.7 144.0 34.3 27.4

10AC400V-3Ph-50Hz 19.2 63.0 10.1 36.0 4.5 13.0 1.8 9.0 14.2 147.0 34.8 27.8


80 A 125 A 7.519.8 60.0

3.710.6 20.3

1200 EXW3(H/S) 1.54.7 11.9

0.751.8 9.0

7.514.7 144.0 34.3 27.4

10AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 14.2 147.0 34.8 27.8


80 A 125 A 7.519.8 60.0

3.710.6 20.3

1300 EXW3(H/S) 1.54.7 11.9

0.751.8 9.0

1122.0 126.0 39.1 31.3

10AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 21.0 199.0 39.5 31.6


80 A 125 A 7.519.8 60.0

3.710.6 20.3

1400 EXW3(H/S) 1.54.7 11.9

0.751.8 9.0

1122.0 126.0 39.1 31.3

10AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 21.0 199.0 39.5 31.6


80 A 125 A 7.519.8 60.0

3.710.6 20.3

1500 EXW3(H/S) 1.54.7 11.9

0.751.8 9.0

1529.6 198.0 44.1 35.3

10AC400V-3PH-50HZ 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4


80 A 125 A 7.519.8 60.0

3.710.6 20.3

1600 EXW3(H/S) 1.54.7 11.9

0.751.8 9.0

1529.6 198.0 44.1 35.3

10AC400V-3PH-50HZ 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4

JOHNSON CONTROLS42


TABLE 10 - ELECTRICAL DATA - CGH TABLE 10 - ELECTRICAL DATA - CGH (CONT'D)

YHAU-CGH POWER SOURCE (V-PH-HZ)


SOLUTION SPRAY PUMP

YHAU-CGH


CAPACITY KVA

TOTAL CONSUMPTION

KW

SCCR KARATED

CURRENTFRAME



40 A 63 A 5.514.2 60.0

2.26.1 23.0

450 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


40 A 63 A 5.514.2 60.0

2.26.1 23.0

500 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


40 A 63 A 5.514.2 60.0

2.26.1 23.0

560 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


50 A 63 A 5.514.2 60.0

2.26.1 23.0

600 EX(H/S) 0.41.6 4.2

0.751.8 9.0

5.510.8 100.0 23.0 18.4

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 10.4 105.0 23.3 18.6


50 A 63 A 5.514.2 60.0

2.26.1 23.0

700 EX(H/S) 0.41.6 4.2

0.751.8 9.0

5.510.8 100.0 23.0 18.4

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 10.4 105.0 23.3 18.6


50 A 63 A 5.514.2 60.0

2.26.5 20.3

800 EX(H/S) 0.41.6 4.2

0.751.8 9.0

7.514.7 144.0 25.8 20.7

6AC400V-3Ph-50Hz 13.5 63.0 6.2 21.0 1.65 4.4 1.8 9.0 14.2 147.0 26.2 20.9


50 A 63 A 5.514.2 60.0

2.26.5 20.3

900 EX(H/S) 1.33.9 11.9

0.751.8 9.0

7.514.7 144.0 27.4 21.9

6AC400V-3Ph-50Hz 13.5 63.0 6.2 21.0 3.8 12.8 1.8 9.0 14.2 147.0 27.7 22.1


63 A 63 A 7.519.8 68.6

2.26.5 20.3 1000

EXW(H/S)1.3

3.9 11.90.75

1.8 9.07.5

14.7 144.0 31.0 24.86

AC400V-3Ph-50Hz 19.2 72.0 6.2 21.0 3.8 12.8 1.8 9.0 14.2 147.0 31.6 25.3


80 A 125 A 7.519.8 60.0

3.710.6 34.0 1100

EXW(H/S)1.5

4.7 12.50.75

1.8 9.011

22.0 126.0 39.1 31.310

AC400V-3Ph-50Hz 19.2 63.0 10.1 36.0 4.5 13.0 1.8 9.0 21.0 199.0 39.5 31.6


80 A 125 A 7.519.8 60.0

3.710.6 20.3 1200

EXW3(H/S)1.5

4.7 11.90.75

1.8 9.011

22.0 126.0 39.1 31.310

AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 21.0 199.0 39.5 31.6


80 A 125 A 7.519.8 60.0

3.710.6 20.3 1300

EXW3(H/S)1.5

4.7 11.90.75

1.8 9.015

29.6 198.0 44.1 35.310

AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4


80 A 125 A 7.519.8 60.0

3.710.6 20.3 1400

EXW3(H/S)1.5

4.7 11.90.75

1.8 9.015

29.6 198.0 44.1 35.310

AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4


80 A 125 A 7.519.8 60.0

3.710.6 20.3 1500

EXW3(H/S)1.5

4.7 11.90.75

1.8 9.015

29.6 198.0 44.1 35.310

AC400V-3PH-50HZ 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4


80 A 125 A 7.519.8 60.0

3.710.6 20.3 1600

EXW3(H/S)1.5

4.7 11.90.75

1.8 9.015

29.6 198.0 44.1 35.310

AC400V-3PH-50HZ 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4

JOHNSON CONTROLS 43


4

TABLE 10 - ELECTRICAL DATA - CGH TABLE 10 - ELECTRICAL DATA - CGH (CONT'D)

YHAU-CGH POWER SOURCE (V-PH-HZ)


SOLUTION SPRAY PUMP

YHAU-CGH


CAPACITY KVA

TOTAL CONSUMPTION

KW

SCCR KARATED

CURRENTFRAME



40 A 63 A 5.514.2 60.0

2.26.1 23.0

450 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


40 A 63 A 5.514.2 60.0

2.26.1 23.0

500 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


40 A 63 A 5.514.2 60.0

2.26.1 23.0

560 EX(H/S) 0.41.6 4.2

0.751.8 9.0

48.1 79.8 21.2 17.0

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 7.9 84.0 21.5 17.2


50 A 63 A 5.514.2 60.0

2.26.1 23.0

600 EX(H/S) 0.41.6 4.2

0.751.8 9.0

5.510.8 100.0 23.0 18.4

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 10.4 105.0 23.3 18.6


50 A 63 A 5.514.2 60.0

2.26.1 23.0

700 EX(H/S) 0.41.6 4.2

0.751.8 9.0

5.510.8 100.0 23.0 18.4

6AC400V-3Ph-50Hz 13.5 63.0 5.8 24.0 1.65 4.4 1.8 9.0 10.4 105.0 23.3 18.6


50 A 63 A 5.514.2 60.0

2.26.5 20.3

800 EX(H/S) 0.41.6 4.2

0.751.8 9.0

7.514.7 144.0 25.8 20.7

6AC400V-3Ph-50Hz 13.5 63.0 6.2 21.0 1.65 4.4 1.8 9.0 14.2 147.0 26.2 20.9


50 A 63 A 5.514.2 60.0

2.26.5 20.3

900 EX(H/S) 1.33.9 11.9

0.751.8 9.0

7.514.7 144.0 27.4 21.9

6AC400V-3Ph-50Hz 13.5 63.0 6.2 21.0 3.8 12.8 1.8 9.0 14.2 147.0 27.7 22.1


63 A 63 A 7.519.8 68.6

2.26.5 20.3 1000

EXW(H/S)1.3

3.9 11.90.75

1.8 9.07.5

14.7 144.0 31.0 24.86

AC400V-3Ph-50Hz 19.2 72.0 6.2 21.0 3.8 12.8 1.8 9.0 14.2 147.0 31.6 25.3


80 A 125 A 7.519.8 60.0

3.710.6 34.0 1100

EXW(H/S)1.5

4.7 12.50.75

1.8 9.011

22.0 126.0 39.1 31.310

AC400V-3Ph-50Hz 19.2 63.0 10.1 36.0 4.5 13.0 1.8 9.0 21.0 199.0 39.5 31.6


80 A 125 A 7.519.8 60.0

3.710.6 20.3 1200

EXW3(H/S)1.5

4.7 11.90.75

1.8 9.011

22.0 126.0 39.1 31.310

AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 21.0 199.0 39.5 31.6


80 A 125 A 7.519.8 60.0

3.710.6 20.3 1300

EXW3(H/S)1.5

4.7 11.90.75

1.8 9.015

29.6 198.0 44.1 35.310

AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4


80 A 125 A 7.519.8 60.0

3.710.6 20.3 1400

EXW3(H/S)1.5

4.7 11.90.75

1.8 9.015

29.6 198.0 44.1 35.310

AC400V-3Ph-50Hz 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4


80 A 125 A 7.519.8 60.0

3.710.6 20.3 1500

EXW3(H/S)1.5

4.7 11.90.75

1.8 9.015

29.6 198.0 44.1 35.310

AC400V-3PH-50HZ 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4


80 A 125 A 7.519.8 60.0

3.710.6 20.3 1600

EXW3(H/S)1.5

4.7 11.90.75

1.8 9.015

29.6 198.0 44.1 35.310

AC400V-3PH-50HZ 19.2 63.0 10.1 21.0 4.5 12.8 1.8 9.0 29.6 TBD 45.5 36.4

JOHNSON CONTROLS44


TABLE 11 - LOAD POINTS FOR HIGH EFFICIENCY - CGNYHAU-CGN LOAD POINT 1 LOAD POINT 2 LOAD POINT 3 LOAD POINT 4

120EXH 2.38 1.95 2.93 1.49150EXH 2.38 1.95 2.93 1.49

180EXH 2.86 2.27 3.41 1.81240EXH 2.95 2.64 3.96 2.00300EXH 3.71 2.99 4.48 2.29360EXH 4.54 3.51 5.27 2.73400EXH 5.09 3.93 5.89 3.03450EXH 5.55 4.01 6.01 3.19500EXH 6.14 3.96 5.95 4.00560EXH 7.03 4.70 7.06 4.14600EXH 7.55 4.88 7.31 4.76700EXH 8.12 5.47 8.20 5.21800EXH 10.14 6.34 9.51 6.58900EXWH 11.2 6.58 9.87 7.461000EXWH 13.0 7.81 11.7 8.631100EXWH 13.8 9.05 13.6 8.951200EXW3H 13.6 9.97 15.0 9.231300EXW3H 14.9 10.30 15.5 10.71400EXW3H 15.7 10.9 16.3 11.21500EXW3H 16.7 10.9 16.4 12.51600EXW3H 17.2 10.6 15.9 13.5

JOHNSON CONTROLS 45


4

TABLE 12 - LOAD POINTS FOR HIGH EFFICIENCY - CGHYHAU-CGH LOAD POINT 1 LOAD POINT 2 LOAD POINT 3 LOAD POINT 4

120EXH150EXH

180EXH240EXH300EXH360EXH400EXH450EXH 13.0 7.81 11.7 8.63500EXH 13.8 9.05 13.6 8.95560EXH 13.6 9.97 15.0 9.23600EXH 14.9 10.30 15.5 10.7700EXH 15.7 10.9 16.3 11.2800EXH 16.7 10.9 16.4 12.5900EXWH 17.2 10.6 15.9 13.51000EXWH 13.0 7.81 11.7 8.631100EXWH 13.8 9.05 13.6 8.951200EXW3H 13.6 9.97 15.0 9.231300EXW3H 14.9 10.30 15.5 10.71400EXW3H 15.7 10.9 16.3 11.21500EXW3H 16.7 10.9 16.4 12.51600EXW3H 17.2 10.6 15.9 13.5

JOHNSON CONTROLS46


TABLE 13 - LOAD POINTS FOR STANDARD EFFICIENCY - CGNYHAU-CGN LOAD POINT 1 LOAD POINT 2 LOAD POINT 3 LOAD POINT 4

120EXS 2.25 1.84 2.76 1.40150EXS 2.25 1.84 2.76 1.40

180EXS 2.72 2.16 3.24 1.72240EXS 2.82 2.53 3.79 1.91300EXS 3.57 2.88 4.31 2.20360EXS 4.34 3.35 5.03 2.61400EXS 4.88 3.77 5.65 2.91450EXS 4.99 3.61 5.41 2.87500EXS 5.65 3.64 5.47 3.68560EXS 6.49 4.34 6.51 3.82600EXS 7.14 4.61 6.92 4.51700EXS 7.67 5.16 7.74 4.92800EXS 8.73 5.45 8.18 5.67900EXWS 10.2 6.00 9.00 6.801000EXWS 11.8 7.13 10.7 7.871100EXWS 12.4 8.13 12.2 8.031200EXW3S 12.3 9.01 13.5 8.351300EXW3S 13.4 9.24 13.9 9.601400EXW3S 14.2 9.81 14.7 10.11500EXW3S 15.8 10.3 15.5 11.81600EXW3S 16.2 9.99 15.0 12.7

JOHNSON CONTROLS 47


4

TABLE 14 - LOAD POINTS FOR STANDARD EFFICIENCY - CGHYHAU-CGH LOAD POINT 1 LOAD POINT 2 LOAD POINT 3 LOAD POINT 4

120EXS150EXS180EXS

240EXS300EXS360EXS400EXS450EXS 12.3 7.43 11.1 8.21500EXS 13.2 8.65 13.0 8.55

560EXS 13.0 9.55 14.3 8.85600EXS 14.3 9.91 14.9 10.29700EXS 15.1 10.48 15.7 10.8800EXS 16.2 10.6 15.9 12.1900EXWS 16.7 10.27 15.4 13.01000EXWS 12.3 7.43 11.1 8.211100EXWS 13.2 8.65 13.0 8.551200EXW3S 13.0 9.55 14.3 8.851300EXW3S 14.3 9.91 14.9 10.291400EXW3S 15.1 10.48 15.7 10.81500EXW3S 16.2 10.6 15.9 12.11600EXW3S 16.7 10.27 15.4 13.0

JOHNSON CONTROLS48


TABLE 15 - SPLIT SHIPMENT - HIGH EFFICIENCY - CGNDOUBLE EFFECT STEAM FIRED ABSORPTION CHILLER

YHAU-CGNMAIN SHELL UNIT HX UNIT HG UNIT

Length (m)

Width (m)

Height (m)

Weight (ton)

Length (m)

Width (m)

Height (m)

Weight (ton)

Length (m)

Width (m)

Height (m)

Weight (ton)

120EXH150EXH 2.6 2.0 2.3 4.0 2.6 1.5 1.2 1.0 2.8 1.0 1.5 1.5180EXH 3.2 2.0 2.3 4.5 3.2 1.5 1.2 1.0 3.1 1.0 1.5 1.5240EXH 3.8 2.0 2.3 4.7 3.4 1.5 1.1 1.4 3.6 1.0 1.5 1.8300EXH 4.7 2.0 2.3 5.8 4.2 1.5 1.1 1.8 4.0 1.0 1.5 2.2360EXH 5.8 2.0 2.3 6.8 5.7 1.5 1.1 2.7 5.1 1.0 2.0 2.6400EXH 6.3 2.0 2.3 7.0 6.2 1.5 1.1 2.9 5.6 1.0 2.0 2.7450EXH 4.9 2.3 2.8 9.8 4.7 1.6 1.1 2.3 4.7 1.0 2.0 2.7500EXH 5.4 2.3 2.8 10.0 5.2 1.6 1.1 2.5 4.8 1.4 2.0 3.4560EXH 5.9 2.3 2.8 11.1 5.7 1.6 1.1 2.7 5.1 1.4 2.0 3.5600EXH 6.4 2.5 2.8 12.2 6.2 1.6 1.1 2.9 5.2 1.4 2.0 3.9700EXH 7.2 2.5 2.8 14.8 7.0 1.6 1.1 3.2 5.9 1.4 2.0 4.0800EXH 7.9 2.5 2.8 17.6 7.7 1.6 1.1 3.5 6.6 1.4 2.0 4.5

900EXWH 7.3 2.6 2.8 20.6 6.7 1.8 1.1 3.1 5.9 1.7 2.8 5.81000EXWH 8.0 2.6 2.8 22.3 7.3 1.8 1.1 3.3 5.9 1.7 2.8 5.81100EXWH 8.7 2.6 2.8 24.8 8.0 1.8 1.1 3.6 6.5 1.7 2.8 6.8

1200EXW3H 9.0 2.6 2.9 25.9 8.0 1.8 1.1 3.6 6.5 1.7 2.8 6.81300EXW3H 9.5 2.6 3.2 27.7 8.5 1.8 1.1 3.8 6.8 1.7 2.8 7.01400EXW3H 10.0 2.6 3.2 29.5 9.0 1.8 1.1 4.8 6.8 1.7 2.8 7.01500EXW3H 10.5 2.6 3.2 31.3 9.5 1.8 1.1 6.0 7.2 2.0 3.2 10.51600EXW3H 11.0 2.6 3.2 33.1 10.0 1.8 1.1 6.3 7.2 2.0 3.2 10.5

JOHNSON CONTROLS 49


4

TABLE 16 - SPLIT SHIPMENT - HIGH EFFICIENCY - CGHDOUBLE EFFECT STEAM FIRED ABSORPTION CHILLER

YHAU-CGHMAIN SHELL UNIT HX UNIT HG UNIT

Length (m)

Width (m)

Height (m)

Weight (ton)

Length (m)

Width (m)

Height (m)

Weight (ton)

Length (m)

Width (m)

Height (m)

Weight (ton)

120EXH150EXH180EXH240EXH300EXH360EXH400EXH450EXH 4.9 2.3 2.8 9.8 4.7 1.6 1.1 2.3 4.7 1.4 2.0 3.4500EXH 5.4 2.3 2.8 10.0 5.2 1.6 1.1 2.5 4.8 1.4 2.0 3.9560EXH 5.9 2.3 2.8 11.1 5.7 1.6 1.1 2.7 5.1 1.4 2.0 3.9600EXH 6.4 2.5 2.8 12.2 6.2 1.6 1.1 2.9 5.2 1.4 2.0 4.5700EXH 7.2 2.5 2.8 14.8 7.0 1.6 1.1 3.2 5.9 1.4 2.0 4.5800EXH 7.9 2.5 2.8 17.6 7.7 1.6 1.1 3.5 6.6 1.7 2.8 7.0

900EXWH 7.3 2.6 2.8 20.6 6.7 1.8 1.1 3.1 5.9 1.7 2.8 6.81000EXWH 8.0 2.6 2.8 22.3 7.3 1.8 1.1 3.3 5.9 1.7 2.8 6.81100EXWH 8.7 2.6 2.8 24.8 8.0 1.8 1.1 3.6 6.5 1.7 2.8 7.0

1200EXW3H 9.0 2.6 2.9 25.9 8.0 1.8 1.1 3.6 6.5 1.7 2.8 7.01300EXW3H 9.5 2.6 3.2 27.7 8.5 1.8 1.1 3.8 6.8 2.0 3.2 10.51400EXW3H 10.0 2.6 3.2 29.5 9.0 1.8 1.1 4.8 6.8 2.0 3.2 10.51500EXW3H 10.5 2.6 3.2 31.3 9.5 1.8 1.1 6.0 7.2 2.0 3.2 13.11600EXW3H 11.0 2.6 3.2 33.1 10.0 1.8 1.1 6.3 7.2 2.0 3.2 13.1

JOHNSON CONTROLS50


TABLE 17 - SPLIT SHIPMENT - STANDARD EFFICIENCY - CGNDOUBLE EFFECT STEAM FIRED ABSORPTION CHILLER

YHAU-CGNMAIN SHELL UNIT HX UNIT HG UNIT

Length (m)

Width (m)

Height (m)

Weight (ton)

Length (m)

Width (m)

Height (m)

Weight (ton)

Length (m)

Width (m)

Height (m)

Weight (ton)

120EXS150EXS 2.6 2.0 2.3 4.0 2.6 1.5 1.2 0.7 2.8 1.0 1.5 1.5180EXS 3.2 2.0 2.3 4.5 3.2 1.5 1.2 0.7 3.1 1.0 1.5 1.5240EXS 3.8 2.0 2.3 4.7 3.4 1.5 1.1 0.7 3.6 1.0 1.5 1.8300EXS 4.7 2.0 2.3 5.8 4.2 1.5 1.1 0.8 4.0 1.0 1.5 2.2360EXS 5.8 2.0 2.3 6.8 5.7 1.5 1.1 1.2 5.1 1.0 2.0 2.6400EXS 6.3 2.0 2.3 7.0 6.2 1.5 1.1 1.2 5.6 1.0 2.0 2.7450EXS 4.9 2.3 2.8 9.8 4.7 1.6 1.1 1.2 4.7 1.0 2.0 2.7500EXS 5.4 2.3 2.8 10.0 5.2 1.6 1.1 1.2 4.8 1.4 2.0 3.4560EXS 5.9 2.3 2.8 11.1 5.7 1.6 1.1 1.2 5.1 1.4 2.0 3.5600EXS 6.4 2.5 2.8 12.2 6.2 1.6 1.1 1.2 5.2 1.4 2.0 3.9700EXS 7.2 2.5 2.8 14.8 7.0 1.6 1.1 1.4 5.9 1.4 2.0 4.0800EXS 7.9 2.5 2.8 17.6 7.7 1.6 1.1 1.6 6.6 1.4 2.0 4.5

900EXWS 7.3 2.6 2.8 20.6 6.7 1.8 1.1 1.7 5.9 1.7 2.8 5.81000EXWS 8.0 2.6 2.8 22.3 7.3 1.8 1.1 1.8 5.9 1.7 2.8 5.81100EXWS 8.7 2.6 2.8 24.8 8.0 1.8 1.1 1.8 6.5 1.7 2.8 6.8

1200EXW3S 9.0 2.6 2.9 25.9 8.0 1.8 1.1 1.8 6.5 1.7 2.8 6.81300EXW3S 9.5 2.6 3.2 27.7 8.5 1.8 1.1 2.2 6.8 1.7 2.8 7.01400EXW3S 10.0 2.6 3.2 29.5 9.0 1.8 1.1 2.2 6.8 1.7 2.8 7.01500EXW3S 10.5 2.6 3.2 31.3 9.5 1.8 1.1 2.9 7.2 2.0 3.2 10.51600EXW3S 11.0 2.6 3.2 33.1 10.0 1.8 1.1 3.0 7.2 2.0 3.2 10.5

JOHNSON CONTROLS 51


4

TABLE 18 - SPLIT SHIPMENT - STANDARD EFFICIENCY - CGHDOUBLE EFFECT STEAM FIRED ABSORPTION CHILLER

YHAU-CGHMAIN SHELL UNIT HX UNIT HG UNIT

Length (m)

Width (m)

Height (m)

Weight (ton)

Length (m)

Width (m)

Height (m)

Weight (ton)

Length (m)

Width (m)

Height (m)

Weight (ton)

120EXS150EXS180EXS240EXS300EXS360EXS400EXS450EXS 5.4 2.3 2.8 10.0 5.2 1.6 1.1 1.2 4.8 1.4 2.0 3.9500EXS 5.9 2.3 2.8 11.1 5.7 1.6 1.1 1.2 5.1 1.4 2.0 3.9560EXS 6.4 2.5 2.8 12.2 6.2 1.6 1.1 1.2 5.2 1.4 2.0 4.5600EXS 7.2 2.5 2.8 14.8 7.0 1.6 1.1 1.4 5.9 1.4 2.0 4.5700EXS 7.9 2.5 2.8 17.6 7.7 1.6 1.1 1.6 6.6 1.7 2.8 7.0800EXS 7.3 2.6 2.8 20.6 6.7 1.8 1.1 1.7 5.9 1.7 2.8 6.8

900EXWS 8.0 2.6 2.8 22.3 7.3 1.8 1.1 1.8 5.9 1.7 2.8 6.81000EXWS 8.7 2.6 2.8 24.8 8.0 1.8 1.1 1.8 6.5 1.7 2.8 7.01100EXWS 9.0 2.6 2.9 25.9 8.0 1.8 1.1 1.8 6.5 1.7 2.8 7.0

1200EXW3S 9.5 2.6 3.2 27.7 8.5 1.8 1.1 2.2 6.8 2.0 3.2 10.51300EXW3S 10.0 2.6 3.2 29.5 9.0 1.8 1.1 2.2 6.8 2.0 3.2 10.51400EXW3S 10.5 2.6 3.2 31.3 9.5 1.8 1.1 2.9 7.2 2.0 3.2 13.11500EXW3S 11.0 2.6 3.2 33.1 10.0 1.8 1.1 3.0 7.2 2.0 3.2 13.11600EXW3S 11.0 2.6 3.2 33.1 10.0 1.8 1.1 3.0 7.2 2.0 3.2 13.1

JOHNSON CONTROLS52


FIGURE 16 - POWER WIRING

LD20248

Solution Circulation Pump

Solution Spray Pump

Refrigerant Pump

Power Source

JOHNSON CONTROLS 53


4

FIGURE 16 - POWER WIRING (CONT.)

LD20248a

Burner Fan Purge Pump

JOHNSON CONTROLS54


FIGURE 17 - POWER SUPPLY WIRING

LD20249

Surge Absorber

Sol

utio

n C

ircul

atio

n P

ump

Sol

utio

n S

pray

P

ump

Ref

riger

ant P

ump

Output

PSU1 Switching Power Supply

One Second

JOHNSON CONTROLS 55


4

FIGURE 17 - POWER SUPPLY WIRING (CONT'D)

LD20250

Pur

ge P

ump

Pro

tect

ion

Rel

ay

Local

HT-GENSolution Level Relay

Input

Local

JOHNSON CONTROLS56



LD20251

Air P

ress

ure

Switc

h

Full

Clo

se C

onfir

m

Full

Clo

se C

onfir

m

Full

Ope

n C

onfir

m

Main Shut-Off Valve (1)


Pilot Valve (2)

Ignition Transformer

Pilot Valve (1)

Flame Detector

JOHNSON CONTROLS 57


4


LD20251

Air P

ress

ure

Switc

h

Full

Clo

se C

onfir

m

Full

Clo

se C

onfir

m

Full

Ope

n C

onfir

m



Pilot Valve (2)


Pilot Valve (1)

Flame Detector

LD20252

(Open) (Close)

(Control Motor for Air) (Control Motor for Gas)

JOHNSON CONTROLS58


FIGURE 18 - PLC INPUT WIRING

LD20253

If a constantly monitoring cable is used, remove the jumper cable.

Bur

ner F

an O

pera

tion

Sig

nal

Oil

Pum

p O

pera

tion

Sig

nal (

Oil

Mod

el)

Pur

ge P

ump

HT-

GE

N S

olut

ion

Leve

l

Com

bust

ion

Sig

nal

Input

Start Stop

Remote Operation/Stop Signal (Level)

Start


Start Stop

Chi

lled/

Hot

Wat

er P

ump

Inte

rlock

Con

stan

tly M

onito

ring

Inte

rlock

Coo

ling

Wat

erpu

mp

Inte

locl

kRemote Operation Signal (DC24 V Pulse)

JOHNSON CONTROLS 59


4

FIGURE 18- PLC INPUT WIRING (CONT'D)

LD20253

If a constantly monitoring cable is used, remove the jumper cable.

Bur

ner F

an O

pera

tion

Sig

nal

Oil

Pum

p O

pera

tion

Sig

nal (

Oil

Mod

el)

Pur

ge P

ump

HT-

GE

N S

olut

ion

Leve

l

Com

bust

ion

Sig

nal

Input

Start Stop


Start


Start Stop

Chi

lled/

Hot

Wat

er P

ump

Inte

rlock

Con

stan

tly M

onito

ring

Inte

rlock

Coo

ling

Wat

erpu

mp

Inte

locl

kRemote Operation Signal (DC24 V Pulse)

LD20254

Aux

illar

y In

put

Bur

ner F

anA

uxill

ary

Inpu

t

SD

C1

Abn

orm

al (O

ptio

n)

Inve

rter A

bnor

mal

(O

ptio

n)

Chi

lled

/ Hot

Wat

er

Sus

pens

ion

Cut

-out

R

elay

Igni

tion

Con

ditio

n

HT-

GE

N H

igh

Pre

ssur

e Fa

ilure

Aux

illar

y In

put

Coo

ling

Wat

er S

uspe

nsio

n C

ut-O

ut R

elay

Input

Com

bust

ion

Mon

itorin

g

Em

erge

ncy

Failu

re In

terlo

ck

Mai

n G

as S

hut-O

ff Va

lve

Full

Clo

se C

onfir

mat

ion

Sw

itch

JOHNSON CONTROLS60


FIGURE 18 - PLC INPUT WIRING (CONT'D)

LD20255

Inst

anta

neou

s P

ower

Fai

lure

D

etec

tion

(Nor

mal

y cl

osed

)

Local

Purge Float Switch

RP

Ope

ratio

n

SP

1 O

pera

tion

SP

2 O

pera

tion

JOHNSON CONTROLS 61


4

LD20255

Inst

anta

neou

s P

ower

Fai

lure

D

etec

tion

(Nor

mal

y cl

osed

)

Local

Purge Float Switch

RP

Ope

ratio

n

SP

1 O

pera

tion

SP

2 O

pera

tion

LD20255a

Gas

Hig

h -

Pre

ssur

e S

witc

h

Gas

- Low

- P

ress

ure

Sw

itch

Flam

e Fa

ilure

Refrigerant Liquid Level

Switch

Gas Pressure Switch

FIGURE 18 - PLC INPUT WIRING (CONT'D)

JOHNSON CONTROLS62


FIGURE 19 - PLC OUTPUT WIRING

LD20256

Contact Output

COM Operation Failure Chilled / Hot Water Pump Operation

Cooling Water Pump Operation

Exhaust Fan Operation

Standard LoopLocal

LD20256a

COM CombustionAlarmFailureOperation Dilution Cooling / Heating

Remote / Local

Cooling Water Temperature Abnormal

JOHNSON CONTROLS 63


4

LD20256a

COM CombustionAlarmFailureOperation Dilution Cooling / Heating

Remote / Local

Cooling Water Temperature Abnormal

FIGURE 19 - PLC OUTPUT WIRING (CONT'D)

JOHNSON CONTROLS64



LD20257

Contact

Local

Combustion

Refrigeration Blow Solenoid Valve

Purge Solenoid Valve (Purge Tank)

Purge Solenoid Valve (Absorber)

Automatic Purge with Vacuum Pump

JOHNSON CONTROLS 65


4

LD20257

Contact

Local

Combustion

Refrigeration Blow Solenoid Valve

Purge Solenoid Valve (Purge Tank)

Purge Solenoid Valve (Absorber)

Automatic Purge with Vacuum Pump

LD20258

External Signal Output

Buzzer


JOHNSON CONTROLS66


FIGURE 20 - PLC ANALOG INPUT WIRING

LD20259

T / C 1 Cooling Water Inlet

T / C 3 Absorber

RTD 1 Chilled / Hot Water Inlet

RTD 2 Chilled / Hot Water Outlet

PT PT

LD20260

T / C 2 Cooling Water Outlet

T / C 4 HT-GEN Temperature

T / C 6 Exhaust Gas

RTD 3Refrigerant

PT

JOHNSON CONTROLS 67


4

FIGURE 20 - PLC ANALOG INPUT WIRING (CONT'D)

LD20260

T / C 2 Cooling Water Outlet

T / C 4 HT-GEN Temperature

T / C 6 Exhaust Gas

RTD 3Refrigerant

PT

JOHNSON CONTROLS68


FIGURE 21 - DISPLAY/ANALOG INPUT WIRING

LD20261

Touch Panel

Current Output(Variable Cooling

Water Flow Signal)

Current Output(SDC1-PV, SHT 3)

Current Output(Solution Circulation

Pump Frequency Signal) (Option)

Current Output(Solution Spray

Pump Frequency Signal) (Option)

JOHNSON CONTROLS 69


4

FIGURE 21 - DISPLAY/ANALOG INPUT WIRING (CONT'D)

LD20262

Current Input(HT-GEN.

Pressure Sensor)

Current Input(Remote Chilled / Hot Water Outlet

TemperatureSetting Signal)

Current Input(SDC1-FB, SHT 3)

Current Input(Purge Pressure

Sensor)

JOHNSON CONTROLS70


LD20570

Power Source 3Ø

Operating (Chilled Water Pump) Interlock Normally Monitoring Interlock

Combustion Monitoring Interlock

Common

Cooling Water Pump Interlock

Emergency Failure Interlock

Remote Start & Stop Signal

50HZ

OPTION

VARIABLE COOLING WATER FLOW SIGNAL OUTPUT (4 - 20 mA)

CHILLED / HOT WATER OUTLET TEMPERATURE REMOTE IMPUT(4 - 20 mA)

Ancillary Equipment Board(Out of Scope of Supply)

Absorption Chiller Control Panel(Scope of Supply)

ZR Terminal Block

NFB SPECIFICATION CURRENT _A

Z2 Terminal Block

Z2 Terminal Block

*For Siesmoscope Relay (in case of seismoscope relay option, mount terminal block on absorption chiller-heater)

Z1 Terminal Block

CommonOperating SignalFailure SignalInterlocking Signal Water Pump Operating Interlocking Signal Cooling Water Pump Interlocking Signal Hot Water Pump CommonOperating SignalFailure SignalAlarm SignalCombustion SignalDilution SignalCooling ModeRemote ModeCooling Water Temperature Abnormality

Z2 Terminal Block

ModBus RTU Remote Communication (Signal Connection Method (RS485)

NOTE: Status display and interlocking signal (Z1-19 to 24) are output from one common terminal (Z1-19 respectively). See Signal Terminal Transition Wiring information to prevent malfunction due to power source wraparound when providing signals to other panels.

OUT OF SCOPE OF SUPPLY

FIGURE 22 - EXTERNAL CONNECTION TERMINAL DETAILS

AUXILIARY EQUIPMENT PANEL ABSORPTION CHILLER-HEATER CONTROL PANEL

JOHNSON CONTROLS 71


4

CONTACT SPECIFICATIONABSORPTION CHILLER-HEATER CONTROL PANEL -> EXTERNAL INPUT TERMINAL

DIGITAL SIGNAL MAX. START & STOP VOLTAGE: AC250 V/DC30 VMAX START & STOP CURRENT: 2 A/1 POINT (RESISTANCE LOAD)MAX START & STOP VOLTAGE: AC250 V/DC30 V (RESISTANCE LOAD

ANALOG SIGNAL PERMIT RESISTANCE LOAD: 500 Ω

COOLING WATER FLOW SIGNAL 4 mA:50% FLOW, 20mA:100% FLOW

EXTERNAL OUTPUT TERMINAL ->ABSORPTION CHILLER-HEATER CONTROL PANEL

DIGITAL SIGNAL RATED VOLTAGE/CURRENT: DC24 V;7 mAANALOG SIGNAL CHILLED or HOT WATER OUTLET TEMPERATURE

REMOTE SIGNAL(COOLING) 4 mA: SETTING BASE TEMPERATURE 20mA: SETTING BASE TEMPERATURE + REMOTE SETTING DIFFERENTIAL

(HEATING) 4 mA: SETTING BASE TEMPERATURE 20mA: SETTING BASE TEMPERATURE -

REMOTE SETTING DIFFERENTIAL

LD20571

HIGH SENSITIVITY LEAKAGE CIRCUIT BREAKER(OUT OF SCOPE OF SUPPLY)

SCOPE OF SUPPLY

FIGURE 23 - 3 PHASE 4 WIRE POWER SUPPLY WIRING

TABLE 19 - CONTACT SPECIFICATIONS

JOHNSON CONTROLS72


LD20572

Z2 Terminal Block

Z2 Terminal Block

COMMON

COMMONCOMMON

REMOTE START-UP (DC24V PULSE START-TOP; NONPOLAR

REMOTE START-UP (NON-VOLTAGE LEVEL)

REMOTE START-UP

REMOTE START-UP REMOTE STOP

OUT OF SCOPE OF SUPPLY SCOPE OF SUPPLY

FIGURE 24 - REMOTE STOP & START SIGNAL

AUXILIARY EQUIPMENT PANEL ABSORPTION CHILLER-HEATER CONTROL PANEL

LD20573

STARTING PANEL OF CHILLED/ HOT WATER PUMP

STARTING PANEL OF COOLING WATER PUMP

COMMONOPERATING SIGNAL

INTERLOCKING SIGNAL CHILLED/ HOT WATER PUMP

INTERLOCKING SIGNAL SUPPLY-EXHAUST FANINTERLOCKING SIGNAL COOLING WATER PUMP

INTERLOCK

TEST

EXAMPLE DIAGRAM OF STARTING PANEL IF CHILLED/HOT WATER PUMP & COOLING WATER PUMP ARE SEPARATELY EQUIPPED.

INTERLOCK

TEST

Z1 TERMINAL BLOCK

FAILURE SIGNAL

FIGURE 25 - SIGNAL TERMINAL TRANSITION WIRING

JOHNSON CONTROLS 73


4

NOTE(S):1. Every unit must be properly grounded..

2. Connect a following interlock if necessary. (The * tells you to make sure to connect.)

a. Operating interlock

• *Chilled/hot water operation interlock,

• air handling unit interlock

• Gas duct damper full open interlock

b. Cooling water pump interlock

* Cooling water pump operation interlock

c. Normally monitoring interlock

• Seismoscope relay,

• abnormal room temperature sensor

d. Monitor interlock in combustion

• Suction/exhaust fan interlock, abnor-mal soot and dust concentration

e. Emergency failure interlock

• Gas leak detector

3. As for terminal base position & contact specifica-tion, see Figure 22 on page 70

4. Use a shield wire which is max. extension 200 m and more than 1.75 mm2

5. Terminals which are not shown in the figures are already connected in the factory.

* indicates a connection is required.

JOHNSON CONTROLS74


UPPER COMMUNICATION SPECIFICATIONThe information in this section applies to the CG Se-ries of direct fired absorption chiller-heaters.

Upper Communication System ConfigurationThe configuration of the upper communication system is shown in the figure below.

LD20594a

Central Monitoring Unit

Data concentrator (HUB)

Scope of delivery by customer

Scope of delivery by Johnson Controls

Absorption chiller-heater control panel

FIGURE 26 - UPPER COMMUNICATION SYSTEM CONFIGURATION

JOHNSON CONTROLS 75


4

Scope of DeliveryJohnson Controls scope of delivery for the upper com-munication system covers the control panels for the upper communication function. The customer is re-sponsible to deliver all other related equipment: con-centrator (HUB), installation, wiring, communication program for the central monitoring unit, and other ap-plicable communication cables. See Table 10 on page 42 for more information.

TABLE 20 - SCOPE OF DELIVERYITEM CUSTOMER JCI REMARKS

Control panel with upper communication

function

X Communication protocol: Modbus TCP

Data concentrator (HUB)

X Installation and wiring are included

Wiring work for Ethernet connection

X Apply twisted pair cable

Communication program for central

monitoring unit

X See Table 22 on page 75 for the details of the IP address, function code, communication data address, and other relevant communication information.

Connection Port for Ethernet CommunicationMake sure that the Ethernet cable is plugged into the correct port on the Control Panel. The Ethernet con-nection port is located at the bottom left on the back of the Control Panel.TABLE 21 - ETHERNET INTERFACE SPECIFICATION

ITEM SPECIFICATIONCommunication format 10BASE-T/100BASE-TXConnector shape RJ-45 type modular jack connectorLED function Active

(Green)Blink Data sending/receiving

No light No data sending/receivingLink

(Green)Blink Data sending/receiving via

10BASE-T/100BASE-TXNo light No connection or successor job

failure

Communication Specification

TABLE 22 - COMMUNICATION SPECIFICATIONSCommunication Protocol Modbus TCP

Communication Path Type 10BASE-T/100BASE-TXIP Address (No. 1) 192.168.1.1, (No.2) 192.168.1.2, (No. 3) 192.168.1.3

Subnet Mask 255.255.255.0Function Code Read Command

(Digital Signal) 0.1/Read Coil (Analog Signal) 0.3/Read Holding RegisterWrite Command (Digital Signal) 0.5/Force Single Coil

JOHNSON CONTROLS76


Communication Data

TABLE 23 - READ COMMANDITEM DISPLAY UNIT ADDRESS CONTENT

SE

T VA

LUE

1 Set Point (Chilled/Hot water outlet temp.)

7.0 °C 00001 0050~1000 unit, 1 unit=0.1°C

2 Automatic stop temp. at cooling mode (thermo-off temp)

5.0 °C 00003 0040~1000 unit, 1 unit=0.1°C

3 Temp. difference of Automatic start/stop control at cooling mode

5.0 °C 00005 0001~1000 unit, 1 unit=0.1°C

4 Automatic stop temp. at heating mode (thermo-off temp)

62.0 °C 00007 0040~1000 unit, 1 unit=0.1°C

5 Temp. difference of Automatic start/stop control at heating mode

5.0 °C 00009 0001~1000 unit, 1 unit=0.1°C

OP

ER

ATIO

N C

ON

DIT

ION

6 Operation condition 0 or 1 or 2

- 00021 0:STOP, 1:COOLING OPERATION, 2:HEATING OPERATION

7 Local/Remote mode condition 0 or 1 - 01001 0:LOCAL, 1:REMOTE8 Solution pump condition 0 or 1 - 01003 0:STOP,1:OPERATION9 Refrigerant pump condition 0 or 1 - 01005 0:STOP,1:OPERATION10 Burner fan condition 0 or 1 - 01007 0:STOP,1:OPERATION11 Load limit condition 0 or 1 - 01009 0:NORMAL OPERATION

1:LOAD LIMIT OPERATION12 Control manipulated variable 100 % 00023 -0100~1100 unit, 1 unit=0.1%13 Failure signal 0 or 1 - 01011 0:NORMAL OPERATION

1:FAILURE OCCUR14 Alarm signal 0 or 1 - 01013 0:NORMAL OPERATION

1:ALARM OCCUR

JOHNSON CONTROLS 77


4

ME

AS

UR

EM

EN

T VA

LUE

15 Chilled/Hot water inlet temp. 12.0 °C 00083 0001~4000 unit, 1 unit=0.1°C16 Chilled/Hot water outlet temp. 7.0 °C 00085 0001~4000 unit, 1 unit=0.1°C17 Refrigerant temp. at evaporator 5.0 °C 00087 0001~4000 unit, 1 unit=0.1°C18 Cooling water inlet temp 32.0 °C 00089 0001~4000 unit, 1 unit=0.1°C19 Cooling water outlet temp 37.0 °C 00091 0001~4000 unit, 1 unit=0.1°C20 Absorber solution temp. 38.0 °C 00093 0001~4000 unit, 1 unit=0.1°C21 High temperature generator

solution temp.145.0 °C 00095 0001~4000 unit, 1 unit=0.1°C

22 Exhaust gas temp. 220.0 °C 00097 0001~4000 unit, 1 unit=0.1°C23 High temperature generator

pressure70.0 kPa 00099 0001~1100 unit, 1 unit=0.1 kPa

24 Motor opening rate 100.0 % 00101 0001~1100 unit, 1 unit=0.1%25 High temperature generator

concentration62.0 % 00103 0001~1100 unit, 1 unit=0.1%

26 Purge tank pressure 2.0 kPa 00105 0001~4000 unit, 1 unit=0.1 kPa

TABLE 24 - WRITE COMMANDITEM ADDRESS CONTENT

1 Chiller-heater operation signal 02001 ON at CHILLER-HEATER OPERATION, PULSE SIGNAL

2 Chiller-heater stop signal 02002 ON at CHILLER-HEATER STOP, PULSE SIGNAL

3 Set point 00203 0050~1000 unit, 1 unit=0.1°C

TABLE 23 - READ COMMAND (CONT.)

JOHNSON CONTROLS78


User-Created The diagrams and tables that follow detail some of the work that must be performed by the customer to ensure that the communication systems work properly.

FIGURE 27 - CONNECTION DETAIL FOR D-SUB 9PIN

Serial interface (COM2)

LD20597b

Serial Interface (COM2) Connect User Created Table

ITEM CUSTOMER JCI REMARKSControl panel with upper communication function

X Communication protocol: Modbus RTU

Wiring work for Modbus RTU communication

X Apply RS485 communication cable. See Table 22 on page 75 for more information.

Communication program for central monitoring unit

X See Table 23 on page 76 for the details of the communication protocol, path type, function code, communication data address, and so on..

TABLE 25 - SCOPE OF DELIVERY OF UPPER COMMUNICATION SYSTEM

JOHNSON CONTROLS 79


4

TABLE 26 - CABLE DIAGRAM (RS-422/RS485)

PIN CONNECTION PIN. NO.

RS-422/RS-485

5

1

9

6

LD20598

SIGNAL NAME DIRECTION MEANING1 RDA Input Receive Data A (+)2 RDB Input Receive Data B (-)3 SDA Output Send Data A (+)4 ERA Output Data Terminal Ready A (+)5 SG Signal Ground6 CSB Input Send Possible B (-)7 SDB Output Send Data B (-)8 CSA Input Send Possible A (+)9 ERB Output Data Terminal Ready B (-)Shell FG Frame Ground (Common with SG)

2-Wire Type Cable DiagramsThe following is a sample cable diagram for a 2-wire type connection that uses a GP4000 series (COM2).

LD20599

RDA

RDB

SDA

SDB

SG

2

3

7

5

4

SG

1

RDB

SDA

SDB

RDA

9

6

CSA

ERB

CSB

ERA

8

Shell FG

Termination Resistance100Ω (1/2W)

Display

Termination Resistance100Ω (1/2W)

External Device(Master)Shield

(Subordinate)D-sub 9 Pin

(socket)

Your own cable

Signal NameSignal NamePin

FIGURE 28 - 2-WIRE 1:1 CONNECTION WITH USER-CREATED CABLE

JOHNSON CONTROLS80


LD20945

)RDA

RDB

SDA

SDB

SG

100 (1/2W

2

3

7

5

4

SG

1

Pin

RDB

SDA

SDB

RDA

9

6

CSA

ERB

CSB

ERA

8

100 (1/2W)

2

3

7

5

4

SG

1

RDB

SDA

SDB

RDA

9

6

CSA

ERB

CSB

ERA

8

Display

Shield(Subordinate)

D-sub 9 pin (socket)

Signal name

External Device(Master)

Your own cable

Signal nameTerminationresistance Termination

resistanceSignal name

(Subordinate)D-sub 9 pin (socket) Shield

Shell FG Shell FG

Pin

FIGURE 29 - 2-WIRE N:1 CONNECTION WITH USER-CREATED CABLE

4-Wire Type Cable DiagramsThe following are sample cable diagrams for 4-wire type connections. They use a GP4000 series (COM2).

SDA

SDB

RDA

RDB

SG

2

3

7

5

4

SG

1

RDB

SDA

SDB

RDA

9

6

CSA

ERB

CSB

ERA

8

100 (1/2W)

100 (1/2W)

Display

Shield

(Subordinate)D-sub 9 pin (socket)

Signal name

External Device(Master)

Your own cable

Pin Signal nameTerminationresistance

Terminationresistance

Shell FG

LD20946

FIGURE 30 - 4-WIRE 1:1 CONNECTION WITH USER-CREATED CABLE

JOHNSON CONTROLS 81


4

LD20947

2

3

7

5

4

SG

1

RDB

SDA

SDB

RDA

9

6

CSA

ERB

CSB

ERA

8

100 (1/2W)SDA

SDB

RDA

RDB

SG100 (1/2W

FG

2

3

7

5

4

SG

1

RDB

SDA

SDB

RDA

9

6

CSA

ERB

CSB

ERA

8

FG FGShellShell

Shield

(Subordinate)

Signal namePinPin Signal name

D-sub 9 pin (socket)External Device

Shield

Display

Signal name

Your own cable

(Subordinate)(Master)D-sub 9 pin (socket)Termination

resistance

Termination resistance

FIGURE 31 - 4-WIRE N:1 CONNECTION WITH USER-CREATED CABLE

The following table contains information regard-ing the communication specifications needed for the Modbus RTU. See Table 19 on page 71 for information about the Read Command or Table 20 on page 75 for information about the Write Command.

Communication Protocol Modbus/RTUCommunication path type RS422/RS485 Data Length: 8 Bit Stop Bit: 1 Bit Parity: EVEN Speed: 9600 bps

Connector D-Sub 9pinFunction Code Read Coil Status:01 Read Holding Register:03

Device Digital Signal: Coil Analog Signal: Holding RegisterSubordinate Equipment Address 1

TABLE 27 - COMMUNICATION SPECIFICATIONS

JOHNSON CONTROLS82


LD20184

B Side A Side

1

4

2

3

5

Evaporator Side

Burner Side Flue Gas Duct Side

Background NoiseGenerator Side

FIGURE 32 - SAMPLE SOUND TESTING

LOCATION* OVERALL OCTAVE BAND

31.5 Hz 63 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz 16 kHz1 78/87 36/70 52/78 65/82 62/71 63/67 66/66 70/69 66/63 60/57 49/472 76/89 43/77 55/80 65/82 64/73 61/64 65/64 66/64 63/61 55/55 42/403 79/93 50/85 57/80 69/83 65/73 61/63 62/62 66/65 65/63 61/58 38/364 80/88 40/74 52/77 64/79 59/67 58/62 66/66 70/69 67/66 63/61 41/395 67/82 35/73 42/69 60/77 53/62 51/55 54/54 53/52 48/47 34/33 25/25

* Position of Measuring instrumentHeight:1.5 m, Horizon:1.0 m (from chiller-heater surface)

NOTE: These data are reference value, as the chiller-heater unit was not covered with the thermal insulation materials and the water pipes (for chilled/hot water, and cooling water) were temporary during the measurement.

JOHNSON CONTROLS 83


5

SECTION 5 - COMMISSIONINGGENERAL GUIDELINES FOR USE

Before OperationDuring commissioning, check the motor’s rotating direction of the solution pump, refrigerant pump, and purge pump:

The flow of fluid cannot be seen because the solution and refrigerant pumps are hermetically sealed.

The rotation direction can be tested by using a rotation detector (Bell and Gosset or WILO DKG). If a rota-tion detector is not available, use the procedure shown below:

1. Remove the plugs at the solution and refrigerant sampling valves.

2. Make sure the valves are completely closed.

3. Confirm that the absorber and refrigerant tank contain enough solution and refrigerant.

4. Connect a compound gauge (NPT 1/2") to the sampling valve with Teflon tape.

The gauge scale must be -760 mm Hg. to 2 Kg. / cm2g, or -30 inches Hg. to 30 psig. To prevent corrosion of the gauge, clean it thoroughly, and check it for leaks after each use.

5. Operate the pump.

6. Open the valve.

7. Read and record the delivery pressure of the solu-tion pump and the refrigerant pump.

8. Close the valve.

9. Check the pressure readings. See Table 24 on page 77 to see if your pump rotation is in the right direction. The correct directions shows a higher discharge pressure.

The delivery pressure reflects the high vacuum condition of the machine. If the inside pressure is atmospheric, add 1.0 kg / cm (14.3 psig)to the standards in table.

10. Remove the compound gauge.

11. Put the plugs back on the valves.

12. Clean the gauge with water.

13. For refrigerant, confirm the correct rotation by looking at the refrigerant spray through the sight glass.

TABLE 28 - ROTARY PUMP ROTATIONCORRECTION ROTATION

Solution Circulation Pump

0.10 to 0.20 MPa.G

Solution Spray Pump -0.05 to 0.02 MPa.GRefrigerant Pump -0.08 to -0.02 MPa.G

After the completion of the equipment work (installa-tion of the chiller-heater, thermal insulation for cold/hot surfaces), operate the chiller-heater and measure the noise around the chiller-heater unit.

The noise data of the chiller-heater unit was measured in decibels at the factory. See Figure 32 on page 82.

A Earth Leakage Breaker (ELB) is not installed on this chiller-heater unit. You MUST install an adequate ground fault circuit breaker at the primary side of the chiller-heater unit.

The Chiller-Heater Pre-Start Up and Commissioning Checklist contains specific information for the instal-lation and start-up of the unit. The steps and procedures MUST be performed by a YORK/Johnson Controls Service person prior to customer use.

All items on the checklist MUST be completed prior to charging and initial operation. Failure to do this may result in machine malfunction, damage, and/or injury.

JOHNSON CONTROLS84

FORM 155.32-ICOM1.EN.GBISSUE DATE: 3/29/2018SECTION 5 - COMMISSIONING

PRECAUTIONS FOR THE USE OF WATERStaining and corrosion of the tubes in the evapora-tor, absorber, and condenser depends on the quality of the water used as chilled/hot water and cooling water. Water quality must be checked periodically to pre-vent problems. If water quality is not controlled and maintained properly, premature tube failure can result. Causes of bad quality water include:

• Polluted seawater

• Polluted underground water

• Cooling tower located near a chimney or in dirty air

Be sure to analyze the chilled/hot water and the cooling water within one month after commissioning. See Table 23 on page 159.

Install strainers of 10 mesh and above to the chilled/hot water and cooling water inlets.

Shut off valves will be installed at the customer site in the chilled/hot water, and cooling water inlets and outlets. Be sure the valves are completely open when suppling water. If not, the water flow can become tur-bulent (at the shut off valves) and damage the water chamber case and tubes. When you need to reduce the quantity of the chilled/hot water, and cooling water temporarily, use the valves to make adjustments.

When the flow rate change of the chilled/hot water is controlled (if the flow rate change function is installed), the load change speed is limited.

• The load change condition to limit the chilled/hot water temperature at the outlet is ±0.5°C : 1.5% minimum/maximum.

• The critical load change condition to prevent an overcooling trip of the chiller-heater is 5% mini-mum/maximum.

CHILLED/HOT WATER OUTLET TEMPERATURE CONTROLLERThe chilled/hot water outlet temperature controller (23A) is located on the sequencer and controls the chilled/hot water outlet temperature.

LIQUID LEVEL GAUGESLiquid level gauges are used to check the conditions of the chiller-heater components.

TABLE 29 - LIQUID LEVEL GAUGES (SIGHT GLASS)

LIQUID LEVEL GAUGE NAME SYMBOL FUNCTION

Refrigerant overflow monitoring level gauge

G101Checks refrigerant overflow level

Refrigerant tank level gauge

G102Checks lower limit of refrigerant tank level

Absorber level gauge G103Checks lower limit of absorber

HT-GEN level gauge G104Checks condition of solution in high-temperature generator

LT-GEN level gauge G105Checks condition of solution in low-temperature generator

JOHNSON CONTROLS 85

SECTION 5 - COMMISSIONINGFORM 155.32-ICOM1.EN.GB ISSUE DATE: 3/29/2018

5

START THE CHILLER-HEATERBefore starting the chiller-heater, review the following:

• Check that the refrigerant blow valve (V8) is closed.

• Check that the fuel gas supply valve is open.

• Check that the fuel gas supply pressure is kept at the required specification.

• Check that the Refrigerant Pump Auto button is pressed.

After the review is complete, start the chiller-heater.The OPER. and STOP buttons are avail-able on the Main, Data, and Setting screen. We recommend that you use them on the Main screen whenever possible.

1. Navigate to the Main screen on the Control Panel.

2. Press the OPER. button on the Control Panel to start the chiller-heater. To start the chiller-heater from a remote location, enter the remote start sig-nal.

When the chiller-heater starts, the following occurs:

• The solution circulation pump, solution spray pump, and the refrigerant pump start.

• The burner fan starts.

• The ignition sequence starts.

• The Low Combustion lamp lights. The low open-ing of the capacity control valves are held for about 10 minutes.

• After 10 minutes, the capacity control valves are controlled automatically according to the cooling load. The Temp Control lamp lights.

STOP THE CHILLER-HEATER1. Press the STOP button on the Main screen of the

Control Panel. To stop the chiller-heater from a remote location, enter the remote stop signal.

When the chiller-heater stops, the following occurs:

• The capacity control valves close.

• Combustion stops.

• The dilution operation starts. It continues for 7 - 30 minutes.

• During the dilution operation, the solution circu-lation pump, the solution spray pump, and the re-frigerant pump operate.

• Once the dilution operation is complete, the solu-tion circulation pump, the solution spray pump, and the refrigerant pump stop. Then, the chilled/hot water pump, the cooling water pump, and the cooling tower fan stop.

INTERLOCKING PROCEDURE Operating the chiller-heater in cooling mode without the air conditioner running can cause the chilled water to freeze. If the unit contains only one air conditioner, secure the air conditioner interlock.

JOHNSON CONTROLS86


Remote or local change over

Turn on power source

Initialize self-check mechanism (1~2 min)

Chilled / hot water, cooling water pump start

Chilled / hot water and cooling water pump

interlock ON?

Solution pump and refrigerant pump start

Burner fan starts

Local start operation Remote start operation

Air conditioning machine and cooling tower fan

start

Abnormal warning

Remote

Local

No(within 3 min.)

Yes

Time up

Temperature control operation

Hold low combustion

Ignition sequence

FIGURE 33 - COOLING START DIAGRAM FIGURE 34 - COOLING STOP DIAGRAM

Stop Operation

Dilution operation starts

Combustion stops

Chilled water or refrigerant temp.

low cut-out

Yes

Dilution time up No

HT-Gen. pressure low

No

Dilution operation more than 30 min

No No

Yes

Yes

Solution pump/refrigerant pump

stop

Chilled/hot water cooling water pump

stop

Stop

Dilution operation time increases

Dilution operation time

stops increasing

Solution and refrigerant pump stop

Solution and refrigerant pump

continue

Yes

Air conditioning machine and cooling tower fan

stop

Burner stops

1

1

JOHNSON CONTROLS 87


5

Chi

ller-

Hea

ter

Chilled/Hot Water Pump

Sequential Operation

AND

Air Conditioner

Cooling Water Pump Cooling Tower


ANDInterlock


(2)

(3)


Interlock

Other interlocks, including earthquake sensor, abnormal room temperature sensor, or other relevant sen-sors located in the unit.

NOTES: 1. Implement sequential operation of the chilled/hot water pump and the cooling water pump from the chiller-heater.2. If there is only one air conditioner, secure interlock for the air conditioner operation (indicated by broken lines in the diagram above).3. Implement sequential operation in such a way that when the chilled/hot water pump stops, the cooling water stops too.4. If the chilled/hot and cooling water system is on a common system, it is necessary to install the isolation valve on the chilled/hot water and cooling water inlet pipe entering the chiller, and interlock these isolation valves with the chiller control panel. It is mandatory for safe and reliable operation of the chiller, and prevents potential crystallization of lithium bromide solution and freezing of the evaporator tubes.

FIGURE 35 - DIRECT FIRE SEQUENTIAL OPERATION FLOWCHART

NOTE: Verify that the air conditioner has stopped after the chiller-heater dilution operation is com-pleted. Otherwise, the chiller-heater may become damaged due to freezing of the chilled water and/or crystallization of the solution.

FIGURE 36 - STOPPING ABSORPTION CHILLER-HEATER DIRECT FIRE FLOWCHART

Stop chiller-heater

AND

Chiller-Heater dilution operation

begins

Chiller-heater dilution operation completed

Stopair conditioning

system

Completed

Chilled/hot water pump and air conditioner stop

Not completed

JOHNSON CONTROLS88


JOHNSON CONTROLS 1

The following work must be completed in accordance with installation instructions:

CUSTOMER: ____________________________________

ADDRESS: _____________________________________

PHONE: ________________________________________

JCI TEL NO: _____________________ JCI ORDER NO: __________________ JCI CONTRACT NO: ______________

JOB NAME: ____________________________________

LOCATION: ____________________________________

CUSTOMER ORDER NO: _________________________

UNIT MODEL NO: ____________________________

The work (as checked below) is in process and will be completed by: _____________ / ____________ / ___________UNIT SERIAL NO: _______________________________

Month Day Year

c. Cooling tower fan .................................................d. Residential hot water pump .................................

3. Detachable flanges are properly installed close to the:

a. Chilled / hot water box. ........................................

b. Cooling water box. ...............................................

c. Residential hot water box ....................................

4. A mesh strainer is installed on the:

a. Chilled / hot water inlet line. ................................

b. Cooling water inlet line. .......................................

c. Residential hot water line. ...................................

5. Air piping work is complete, leak tested, and flushed for the following lines:

a. Chilled / hot water. ...............................................

b. Cooling water. ......................................................

c. Fuel gas. ..............................................................

d. Flue or Chimney ..................................................

e. Residential hot water ...........................................

6. Clean the mesh strainers on the line .......................

7. Start the chilled or hot water, cooling water, and residential hot water pump .. .....................................

8. The water box pressure does not exceed the maximum pressure for the:

a. Chilled / hot water. ...............................................

b. Cooling water. ......................................................

c. Residential hot water pump .................................

A. General

1. All major components, boxes, and crates have been received and accounted for by a YORK/John-son Controls Service representative.....................

2. Any damage, or signs of possible damage, have been documented to the transportation company....

3. Unit is installed in an area protected from weather and maintained at a temperature above freezing....

4. Vibration-proof rubber sheets are installed be-tween chiller base and site foundation.....................

5. Unit is located in accordance with minimum clear-ance dimensions, foundation bolts are properly in-stalled, and the levelness of the unit is within accept-able range. (Tolerance for leveling length is: 1.0 for every 1,000 mm and width: 2.0 for ever 1,000 mm.)..

6. HG compound gauge pressure reading is about the same as before shipment..................................

7. Thermal insulation is done according to the speci-fications detailed in this manual................................

8. Valves, thermowells, plugs, and sight glasses are not covered with insulation........................................

B. Piping

1. Piping is installed between the unit at the source of supply ........................................ ...........................

2. The following and its related equipment are ready for operation:

a. Chilled / hot water pump .....................................

b. Cooling water pump ............................................

CHECKLIST

YHAU-CGN/H DIRECT FIRED ABSORPTION CHILLER-HEATER

Supersedes 155.32-CL1 (216) Form 155.32-CL1 (317)

CHILLER-HEATER START UP AND COMMISSIONING CHECKLIST

PRE-START UP

JOHNSON CONTROLS 89


5

JOHNSON CONTROLS2

FORM 155.32-CL1 ISSUE DATE: 03/31/2017

9. The flow rate is adjusted within acceptable range for:

a. Chilled or hot water. .............................................

b. Cooling water. ......................................................c. Residential hot water .......................................... .

10. The flue damper has an open limit switch. Its signal is connected to the control panel as an interlock signal. ....................................................... .

c. Valve and Sensor check

1. Adjusting valves are set correctly.............................

2. The diaphragm valves in the purge line are closed

3. Spindle valve in the purge line is open. ...................

4. Changeover valves are set in operation mode........

5. The detection component of the thermosensor is inserted into the thermowell according to design requirements.............................................................

D. Electrical

1. The main and control power supply is available, and voltage is set within acceptable range.............

2. The insulation resistance of each motor and MCB secondary side is within acceptable range....

3. All wiring is complete from the main power sup-ply to the power panel, but is not cut to final length or connected to the panel.............................

4. The wiring between the control panel and the residential hot water control valve are connected properly ....................................................................

5. The external control wiring is completed from the control panel to the water pump motor starters, and other related equipment. ...................................

E. Vacuum Pump

1. Confirm the vacuum pump motor rotation is correct........................................................................

2. Verify the vacuum pump is charged with the cor-rect amount of lubricant oil....................................

F. Evacuate Nitrogen charge

1. Remove the plug in the purge line.......................

2. Evacuate nitrogen gas until the HT-GEN compound gauge indicates approximately 0.005 MP.a.G (0.725 PSI) ..................................................

3. Reinstall plug in purge line.....................................

4. Navigate to the Control Panel Setting screen. .........

5. Press the Purge Pump ON button ...........................

6. Check the oil level in the purge pump ......................

7. Evacuate the nitrogen gas using the vacuum pump until the HT-GEN compound gauge indicates ap-proximately -0.1 MP.a.G (-14.5 PSI) ........................

8. Close all open manual valves. .................................

9. Press the Purge Pump OFF button. .........................

10. Turn the power switch (MCB) off. .............................

11. Replace lubricant oil for the vacuum pump...........

G. Panel checks

1. The thermal relays conform to the factory inspec-tion sheet..................................................................

2. The interlock (answerback) signal for the chilled/hot water pump and cooling water pump is available....................................................................

3. The indicators on the control panel are correct ........

4. The temperature setting parameters for capacity control are correct.....................................................

5. The date and time reflect local time zone..............

6. The rotation direction of the solution circulation pump, solution spray pump, refrigerant pump, and burner fan is correct... ............................................ ..

7. The water flow suspension switch works properly ...

h. Fuel Gas Line check

1. Gas type and calorific value of fuel gas corresponds to specification..........................................................

2. Gas supply pressure is within acceptable range.....

3. Gas shut-off valves for the main burner and pilot burner lines perform within acceptable range........

4. Close the measuring port valves for the pilot and main gas line.............................................................

5. Open the valves for the pilot and main gas lines....

JOHNSON CONTROLS90


JOHNSON CONTROLS 3


I. Adjust combustion

1. Manually start each water pump ..............................

2. Confirm the water box covers do not leak while thewater pump operates. ..............................................

3. Stop each water pump manually. .............................

4. Set each water pump operation mode to automatic


6. Press the appropriate Operation Mode button. ........

7. Press the Manual Purge ON button. ........................

8. Purge the non-condensable gas from the ab-sorber. Use the procedure detailed in SECTION7 - MAINTENANCE of the manual ...........................

9. Open the refrigerant manual blow valve. .................


11. Press the Control Valve Mode Manual button. ........

12. Make sure that the Refrigerant Pump Auto buttonis pressed. ................................................................

13. Verify that the steam control valve is closed. ...........

14. Press the OPER. button on the Control Panel. ........

15. Check that the following start properly:

a. Solution circulation pump ....................................

b. Solution spray pump ............................................

c. Refrigerant pump .................................................

NOTES:________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

16. Check for abnormal noise or vibration. ....................

17. Confirm that the consumption of fuel gas at lowcombustion is within acceptable range. ...................

18. Verify that the concentration of Carbon Monoxide(CO) and Oxygen (O2) is within acceptable rangewhen the exhaust gas is at low combustion. ............

19. Confirm that the consumption of fuel gas at highcombustion is within the acceptable range. .............

20. Verify that the concentration of Carbon Monoxide(CO) and Oxygen (O2) is within the acceptablerange when the exhaust gas is at high combus-tion. ..........................................................................

21. Collect the combustion data. ....................................

22. Verify that the flame current is within the accept-able range. ...............................................................

23. Verify that the draft pressure is within the accept-able range. ...............................................................

JOHNSON CONTROLS 91


5

JOHNSON CONTROLS4


START UP

A. Operation check

1. Press the Control Valve Mode Auto button. ............

2. Check that the capacity control valve worksautomatically according to the chilled water outlettemperature. .............................................................

3. Press the STOP button on the Control Panel ..........

4. Check that the dilution process completes. .............

5. Press the OPER. button on the Control Panel. ........

6. Operate the chiller-heater for 3 hours or longer. ......

7. Close the refrigerant manual blow valve. .................

8. Operate the chiller-heater for an additional hour orlonger. ......................................................................

9. Check that the cooling water temperature is con-trolled within the acceptable range. .........................

10. Check that the specific gravity of the refrigerant iswithin the acceptable range. ....................................

11. Check that the chilled water outlet temperature islower than the chilled water inlet temperature. ........

12. Record the running data on the data sheets. ...........

B. Purge Amount check

1. Verify that the purge amount from the absorber iswithin acceptable range ...........................................

2. Close the spindle valve to facilitate purging fromthe absorber. ............................................................

3. Continuously purge from the purge tank until theexhausted gas amount reduces and becomesstable. ......................................................................

4. Operate the chiller for about 1 hour without operat-ing the vacuum pump. ..............................................

5. Verify that the amount of purge from the purgetank is within the acceptable range. .........................

c. Purge System check

1. Press the Purge Mode Auto button .........................

2. Change the lubricant oil of the vacuum pump ..........

3. Open the valve of the ballast valve part-way. ..........

D. Remote Operation check

Confirm that the chiller-heater starts and stops prop-erly using the remote signal. .........................................

E. Operation Instruction

Review the operation and maintenance instructionswith the customer. .........................................................

a. Customer Names:

1.

2.

3.

customer Signature: _______________________________________

Form completed by: _______________________________________

_______________________________________Title:

_____________ / ____________ / ___________ Month Day Year

JOHNSON CONTROLS92


JOHNSON CONTROLS 5


DIRECT FIRED ABSORPTION CHILLER-HEATER COMMISSIONING DATA SHEET (1/3) User:Model: MFG.No.: User's machine code:

Insulation Resistance Electric Power SupplyStandard: 5 MΩ or more (with 500 V meg-ger)

R-Gnd S-Gnd T-Gnd Specification: AC V / Hz

Circuit breaker MΩ Standard: Within +/- 10% of spec.R-S V

U-Gnd V-Gnd W-Gnd R-T VSolution circulation pump MΩ S-T VSolution spray pump MΩ R-Gnd VRefrigerant pump MΩ S-Gnd VPurge pump MΩ T-Gnd V

Thermal Relay Setting Refrigerant Purity Temperature SettingSolution circulation pump A Standard: 1.040 (kg/L) or less CoolingSolution spray pump A Specific gravity Set base temp. °CRefrigerant pump A Turbidity Auto. stop temp °CPurge pump A Auto restart diff. °C

HeatingPump Discharge Pressure Purge Amount Set base temp. °CSolution circulation pump MPa.G Standard: 4 cc/min or less Auto. stop temp. °CSolution spray pump MPa.G Purge tank cc Auto. restart diff. °CRefrigerant pump MPa.G Absorber cc

NOTES:________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

JOHNSON CONTROLS 93


5

JOHNSON CONTROLS6


cOMBUSTION DATA

MEASURED BY SPEcIFI-cATION

STAN-DARD LOw MIDDLE hIGh

OUTPUT VALUE % Control panelFUEL DAMPER POSITION % Damper pointerAIR DAMPER POSITION % Damper pointer

FUEL PRIMARY PRESSURE (P1)

Pressure gauge

FUEL SEcONDARY PRES-SURE (P2)

Pressure gauge

FUEL cONSUMPTION (SEE NOTES)

m3/h Flow meter

FUEL cONSUMPTION (SEE NOTES)

m3N/h Calculation or flow meter

ExhAUST GAS O2 cON-cENTRATION

% Exhaust gas analyzer 4.0~8.0

ExhAUST GAS cO cON-cENTRATION

ppm Exhaust gas analyzer ≤100

ExhAUST GAS cO2 cON-cENTRATION

% Exhaust gas analyzer

wIND BOx PRESSURE Water manometer

DRAFT PRESSURE (P3) Water manometer 0~-49 kPaFURNAcE PRESSURE (P4) Water manometer

FLAME cURRENT μA Flame current meter ≥2.0BURNER FAN OPERATION

cURRENTA Cramp meter

ExhAUST GAS TEMPERA-TURE

°C Control panel ≤250

DIRECT FIRED ABSORPTION CHILLER-HEATER COMMISSIONING DATA SHEET (2/3)

NOTES: If gas flow rate is taken as m3/h, calculate m3N/h with fuel pressure and ambient temperature.

LD20247

P1 P2Air

P3P4

Gas

Ambient temperature: °C

JOHNSON CONTROLS94


JOHNSON CONTROLS 7


DIRECT FIRED ABSORPTION CHILLER-HEATER COMMISSIONING DATA SHEET (3/3)User:Model: MFG.No.: User's machine code:Running DataDate: Measured by Specification Standard : : :

FuelOutput Valve % Control panelExhaust gas temperature °C Control panel ≤ 250°CFuel Consumption Flow meter

chilled/hot water

Inlet temperature °C Control panelOutlet temperature °C Control panelInlet pressure Pressure gaugeOutlet pressure Pressure gauge[3] Pressure drop DPG or calculation [4][1] Flow rate FM or calculation [2]

cooling water

Inlet temperature °C Control panel 20.0~32.0°COutlet temperature °C Control panel 20.0~37.5°CInlet pressure Pressure gaugeOutlet pressure Pressure gauge[7] Pressure drop DPG or calculation [8][5] Flow rate FM or calculation [6]

Absorption cycle

HG pressure (gauge) MPa.G Compound gauge≤ -0.003

MPaHG pressure (sensor) kPa.abs Control panel ≤ 94.7 kPaHG temperature °C Control panel ≤165°CHG solution concentration % Control panelAbsorber temperature °C Control panelRefrigerant temperature °C Control panel

Liquid Level

HG Level gaugeLG Level gaugeAbsorber Level gaugeEvaporator (lower) Level gaugeEvaporator (upper) Level gauge

NOTES:

Operating hours________hours

Number of purge times________times

Fill out each specification pressure drop according to the factory inspection report (actual value). If differential pressure gauge (DPG) is not available, calculate each pressure drop.

If flow meter (FM) is not available, calculate each flow rate as below.

[1] = [2] x √[3] / [4] [5] = [6] x √[3] / [4] LD20020

Same Height

Waterbox

OUT

P P

IN

JOHNSON CONTROLS 95


5

JOHNSON CONTROLS8


TABLE 1 - PURGE AMOUNT MEASUREMENT DATA SHEET (1/1)

User:Model: YhAU - MFG.No.: User's machine code:Measured Date: Measured by:

Purge Amount from Purge Line Flame Reaction TestStandard: 4.0 cc/min. or smaller Reaction (Strong/Weak/None) Amount of Gas (P) cc/min

Purge Amount from Purge TankElapsed time 1 hourConsumed time for measurement (m) min.Total gas amount (a) ccActual gas amount (b) cc

(b) = (a) - (P) x (m)

Purge Amount from AbsorberStandard: 4.0 cc/min. or smallerElapsed time (T) min. 1 2 3 5 10 15 20 30Total gas amount (A) ccIncreased gas amount (B) ccActual gas amount (C) cc/min.(B) = (A) - previous(A)(B) - (P) x (T) - previous(T) (C) = (T) - previous(T)

JOHNSON CONTROLS96



JOHNSON CONTROLS 97


6

SECTION 6 – OPERATION

YHAU-CGN/H CONTROL CENTER The YHAU-CGN/H Control Center, furnished as stan-dard on each chiller-heater, allows for efficiency, mon-itoring, data recording, chiller-heater protection, and operating ease. The Control Center is factory-mounted, wired, and tested. It used as a control system for lithi-um bromide absorption chiller-heaters.

The panel is configured with a color TFT Display with buttons that are integrated into the display. A single button reveals a wide array of information on a large, full-color illustration of the appropriate component. In-formation is easier to interpret.

The LCD display allows for a graphic animated dis-play of the chiller-heater, its sub-systems and system parameters. In addition, you may view the historical operation of the chiller-heater as well as the present op-eration. A Status Bar displays at all times on all screens. It contains the System Status Line and Details Line, the Control Source, Access Level, Time and Date.

The panel display is available in various languages. The language can be changed without having to turn off the chiller-heater.

Data can be displayed in Metric units plus keypad en-try of set points to 0.1 increments.

Security access using passwords is provided to prevent unauthorized changes of set points. There are three lev-els of access. Each level has its own password. There are certain screens, displayed values, programmable set points, and manual controls not shown that are used for servicing the chiller-heater.

COMMON ITEMSButtons are listed in the order they are seen on the screen: left to right and top to bottom.

The Control Center screens have items that are applica-ble to each feature of the Control Center. This includes the following common items:

• LOCAL and REMOTE: Buttons that allow you to switch the operating location between remote and local. The setting can be changed while the chiller-heater is operating. Press and hold the ap-propriate button for 2 sec. to make the change.

• Operating Status: The display appears at the center top of the screen. It shows the following operating conditions: Stop, Operating, and Failure Activating.

• Failure and Alarm: Warning lamps that light if the chiller-heater has a failure or a warning alarm.

• Date and Time: Shown on the upper right corner of each screen.

• OPER. and STOP: Buttons in the lower left cor-ner to allow you to stop or start the chiller-heater.

LD20135

JOHNSON CONTROLS98

FORM 155.32-ICOM1.EN.GBISSUE DATE: 3/29/2018SECTION 6 – OPERATION

When you press the OPER. button while the chiller-heater is stopped, or STOP while the chiller-heater is operating, a confirmation message appears. Press YES or NO depending on whether you want to continue or cancel your selection.

LD21476a

• Screen Name Buttons - Each screen includes buttons for changing screens. The button that is lit indicates which screen you are on. These are located along the bottom of the screen.

CHANGE NUMERIC VALUESMany numeric values, such as the set point and the ranges on the Trend screen, can be changed. Here’s how:

1. Touch the number to be changed. A numeric key-pad appears.

LD21154a

2. Enter the new value on the keypad.

3. Press the ENT button to set it.

JOHNSON CONTROLS 99

SECTION 6 – OPERATIONFORM 155.32-ICOM1.EN.GB ISSUE DATE: 3/29/2018

6

The Main screen displays the equipment status (chill-er-heater start or stop, operating, pumps ON or OFF, purge pump ON or OFF, and chilled or hot, and cooling water pumps ON or OFF). Also, the operating status of the various modes of chiller-heater operation.

OPERATING STATUSOn the upper left of the screen below the LOCAL and REMOTE buttons is a list of options. Each has a lamp to indicate on or off for the following:

• Startup: Lights if the chiller-heater is ready to start. Light is off if the chiller-heater is stopping or if it is not ready to start.

• Low Combusion: The light is lit when the low combustion hold is operating. The combustion stays in the low position before the automatic temperature control process runs.

• Temp. Control: Light is lit if the temperature control of the microcomputer panel changes to RUN status. Turns off if the chiller-heater stops.

• Thermo OFF: In cooling mode, lights if the chilled water temperature falls to the automatic stop temperature. Turns off when the temperature rises enough to allow an automatic restart. In heat-ing mode, it lights of the hot water temperature rises to the automatic stop temperature. It turns off when the temperature falls enough to allow an automatic restart.

• Load Limit: Light is lit if the load restriction acti-vates due to the cooling water temperature, refrig-erant temperature, or HG temperature or pressure is higher than the set point. Light turns off when the load restriction is removed.

• Dilution: Light is lit during the dilution operation after the chiller-heater stops. It turns off when the dilution operation is complete.

Set Point: The set point of chilled/hot water leaving temperature is shown on the left of the screen.

The system illustration lights (lines fill in) when the system is operating.

MAIN SCREEN

LD20135

FIGURE 37 - MAIN SCREEN

LD20135

JOHNSON CONTROLS100


An illustration of the system shows the following in-formation:

• Fuel Gas Control Valve Control Output• Chilled/Hot Water Entering or Leaving Tempera-

ture• Cooling Water Entering or Leaving Temperature• Refrigerant Temperature• Absorber Temperature• High Temperature Generator Pressure• High Temperature Generator Temperature• High Temperature Generator Concentration

• Purge Tank Pressure• Fuel Gas Control Valve Position

This screen shows the status of the equipment in the chiller-heater process diagram.

Items in the chiller-heater process diagram are:

Pump

solution circulating pump / solution spray pump / refrigerant pump / purge pump / chilled/ hot water pump / cooling water pump

- Flickers green during operation. Remains red when the pump is stopped.

69WC1 / 69WC2(option)

Differential pressure switch of chilled/hot water (69WC1) and cooling water (69WC2)

- Black when water is flowing. Turns red when the water is stopped.

Valve

fuel gas shut-off valve / refrigerant blow valve / purge tank valve

White indicates valve is shut off. Any other color indicates the valve is open.

The condition lights show the current operating mode and status of the system.

The four (4) buttons along the bottom of the Main screen are common to many of the other screens in the Control Panel. They all can be used to move around and access other screen information. They are:

• MAIN: return to the initial screen

• DATA: move to the Data screen

• FAIL or ALARM: move to the Failure and Alarm screen

• SETTING: move to the Setting screen

JOHNSON CONTROLS 101


6

LD20136

FIGURE 38 - DATA SCREENLD20136

The Data Screen displays values showing tempera-tures, operating hours, operating frequency, data trends and a history of failures, alarms, and time based tem-perature trends.

In the Measured Value section of the Data screen the following display:

Chilled/Hot Water Inlet Temp.: temperature of the chilled/hot water measured as it enters the evaporator

Chilled/Hot Water Outlet Temp.: temperature of the chilled/hot water measured as it leaves the evaporator

Cooling Water Inlet Temp.: temperature of the cool-ing water measured as it enters the absorber

Cooling Water Outlet Temp.: temperature of the cooling water measured as it leaves the condenser

Evaporator Refrigerant Temp.: temperature of the refrigerant in the evaporator

Absorber Temp.: temperature of the diluted solution in the absorber

Exhaust Gas Temp.: temperature of the exhaust gas measures as it leaves the high temperature generator

DATA SCREEN

HT Generator Temp.: temperature of the concentrat-ed solution in the high temperature generator

HT Generator Pressure: pressure in the high temper-ature generator

HT Generator Concentration: concentration of the concentrated solution in the high temperature genera-tor

Control Output, Control Valve Opening, Air Valve Control Output and, Air Valve Position are shown as a percentage.

The Purge Tank Press. is shown as kiloPascals.

RHW Out Temp: temperature of the residential hot water as it leaves the residential heat exchanger (op-tional)

The Operation Hours section shows the following:

• Operation: how long the chiller-heater has been running.

• Cooling: how long the chiller-heater has been running in cooling mode

JOHNSON CONTROLS102


• Heating: how long the chiller-heater has been running in heating mode

• Solution Pump: how long the solution pump has been running.

• Refrige. Pump: how long the refrigerant pump has been running.

• Burner: how long the burner for the chiller-heat-er has been running

The frequency of failures, alarms, and purges is shown in the Frequency section:

• Operation: displays how many times the chiller-heater has started using the OPER. button or a remote start signal.

• Cooling: displays how many times the chiller-heater has started using the OPER. button or a remote start signal in cooling mode

• Heating: displays how many times the chiller-heater has started using the OPER. button or a remote start signal in heating mode

• Start: displays how many times the burner has started.

• Failure: displays how many times the system has experienced a failure.

• Alarm: displays how many times an alarm has been activated.

• Auto Purge: displays how many times the auto-matic purge system has started.

To move to the Trend screen, press the Trend button at the upper right of the screen.

The History Menu section on the right side of the screen gives you access to the operation history, Alarm History and to the Failure History screens. It contains four buttons:

• Hourly Operation: move to the Hourly Opera-tion History screen

• Minutely Operation: move to the Minutely Op-eration History screen

• Failure History: move to the Failure History screen

• Alarm History: move to the Alarm History screen

The Maintenance Information section contains three buttons. They provide information on how long it has been since maintenance was done. They also indicate if maintenance is required. The buttons are:

• Solution Analysis or Ctrl. Pn. Parts Replace: Information on the last time solution analysis was performed or information about parts of the con-trol panel that need maintenance.

• Solution Pump Overhaul or Ref. Pump Over-haul: Information on the last time the solution pump or the refrigerant pump were overhauled.

• Combustion Check or Burner Parts Replace: Information on the last time a combustion check was done or how long it has been since any of the burner parts were replaced.

If the lettering on any of the buttons is red, immediate attention is needed.



6

SOLUTION ANALYSIS / CONTROL PANEL PARTS REPLACEMENT SCREEN

LD21347

FIGURE 39 - SOLUTION ANALYSIS / CONTROL PANEL PARTS REPLACEMENT SCREEN

The Solution Analysis section of the screen shows the maintenance interval and current operation hours since the last inhibitor solution maintenance.

Keep the inhibitor concentration within the proper range to prevent corrosion. Periodic analysis of the so-lution and addition of inhibitor is required.

When maintenance is overdue, the maintenance alarm is activated with the warning "Solution analysis should be done." When the warning appears, contact your lo-cal Johnson Controls Service Center.

The Control Panel Parts Replacement section of the screen shows the maintenance interval and current op-eration hours since the last control panel maintenance.

Periodic maintenance prevents malfunctions of the control panel. It also helps keep safety devices from deteriorating.

When maintenance is overdue, the maintenance alarm is activated with the warning "Control panel parts should be replaced." When the warning appears, con-tact your local Johnson Controls Service Center.

JOHNSON CONTROLS104


SOLUTION PUMP OVERHAUL / REFRIGERANT PUMP OVERHAUL SCREEN

LD21554

FIGURE 40 - SOLUTION PUMP OVERHAUL / REFRIGERANT PUMP OVERHAUL SCREEN

The Solution Pump Overhaul section of the screen and the Refrigerant Pump Overhaul section of the screen both indicate the maintenance interval and the current operation hours since the last maintenance.

When the required maintenance period has passed, the maintenance alarm is activated with the warning, "So-lution Pump should be overhauled" and/or "Refrigerant Pump should be overhauled". When the maintenance period has passed and the warning appears, contact your local Johnson Controls Service Center.



6

BURNER PARTS REPLACEMENT/ BURNER COMBUSTION CHECK SCREEN

LD21554

FIGURE 41 - BURNER PARTS REPLACEMENT/ BURNER COMBUSTION CHECK SCREEN

LD21979

The Burner Parts Replacement section of the screen displays the maintenance interval and cur-rent operation hours since the last maintenance of the control panel. It is important to prevent malfunction of the burner and its related devices from deterioration. When the required main-tenance interval has passed, the maintenance alarm is activated with the warning "Burner parts should be replaced." When the warning appears, contact your local Johnson Controls service cen-ter.

The Burner Combustion Check section of the screen in-dicates the maintenance interval and current operation hours since the last maintenance of the burner combus-tion. It is important to keep the combustion properly adjusted to prevent abnormal combustion. Periodic check and adjustment of the combustion is required. When the required maintenance interval has passed, the maintenance alarm is activated with the warning "Burner combustion should be checked." When the warning appears, contact your local Johnson Controls service center.

JOHNSON CONTROLS106


LD20277

FIGURE 42 - TREND SCREEN

LD20277

To view the Trend Screen, press the Trend button above the History Menu section on the Data screen.

This screen graphically illustrates the trend of the tem-perature and the pressure for the following:

• Chilled/Hot Water Inlet: temperature of the chilled/hot water measured as it enters the evapo-rator

• Chilled/Hot Water Outlet: temperature of the chilled/hot water measured as it leaves the evapo-rator

• Cooling Water Inlet: temperature of the cooling water as it enters the absorber

• Cooling Water Outlet: temperature of the cool-ing water as it leaves the condenser

• HG Temperature: temperature of the solution in the high temperature generator

• HG Pressure: pressure of the solution in the high temperature generator

TREND SCREEN

The graphs are updated constantly regardless of the op-erating status of the chiller-heater.

The display ranges in the Trend screen can be changed.

LD20278LD20278

Use the numeric keypad to make the changes. For more information on the procedure, see Change Nu-meric Values on page 98.

To move to another screen, press the any of the avail-able buttons along the bottom of the screen.



6

HOURLY OPERATION HISTORY SCREEN

LD20279

FIGURE 43 - HOURLY OPERATION HISTORYLD20279

To view the Hourly Operation History screen, press the Hourly Operation button in the History Menu screen section of the Data screen.

The Hourly Operation History screen shows opera-tional information for the last 12 hours and contains the following fields of information:

The heading of the screen includes the X time ago and the Measured Date and Time. Buttons are available to select measurements for up to 12 times ago, to cover the 12 hour period.

Operation: operation status of the chiller-heater

Operation Method: selected operation method (local or remote)

Solution Pump: operation status of the solution pump

Refrigerant Pump: operation status of the refrigerant pump

Burner Fan: operation status of the burner fan

Operation Mode: selected operation mode (cooling or heating)

Combustion: status of the combustion (ON or OFF)

Operation Hours: how many hours the chiller-heater has started using the OPER. button or a remote start signal

Operation Freq.: how many times the chiller-heater starts and stops

Failure Frequency: how many times the chiller-heater has had a failure alarm

Alarm Frequency: how many times an alarm has been triggered for the chiller-heater

Auto Purge Frequency: how many times the auto-matic purge has been performed

The Chilled/Hot water section of the screen shows you the following information:

Inlet Temperature: temperature of the chilled/hot wa-ter measured as it enters the evaporator

Outlet Temp.: temperature of the chilled/hot water measured as it leaves the evaporator.

JOHNSON CONTROLS108


The Cooling Water section shows you:

Inlet Temperature: temperature of the cooling water measured as it enters the absorber

Outlet Temp.: temperature of the cooling water mea-sured as it leaves the condenser

Refrigerant Temp.: temperature of the refrigerant in the evaporator


Exhaust G Temp.: temperature of the exhaust gas measured as it leaves the high temperature generator

HG Temperature: temperature of the concentrated so-lution in the high temperature generator

HG Pressure: pressure in the high temperature gen-erator

HG Concentration: concentration of the concentrated solution in the high temperature generator

Control Valve: percentage that the valve is open

There are two sets of buttons on the right side of the screen. The first set gives you access to information about past occurrences. For instance, if you press the 3 times ago button, you will see the settings as they ap-peared 3 hours ago.

The buttons in the History Menu section allow you to move between the various history screens:

Hourly Operation: Press this button to access the Hourly Operation History screen

Minutely Operation: Press to view the Minutely Op-eration History screen

Failure History: Press this button to see the Failure History screen

Alarm History: Press to see the Alarm History screen.




6

MINUTELY OPERATION HISTORY SCREEN

LD20280

FIGURE 44 - MINUTELY OPERATION HISTORYLD20280

To view the Minutely Operation History screen, press the Minutely Operation button in the History Menu section of the Data screen.

The Minutely Operation History screen shows opera-tional information for the last 12 minutes and contains the following fields of information:


Operation Method: selected operation method




Operation Mode: selected operation mode (cooling or heating)


Operation Hours: how many hours the chiller-heater has been running

Operation Freq.: how many times the chiller-heater has started using the OPER. button or a remote start signal



Auto Purge Frequency: how many times an automat-ic purge has been performed



Outlet Temp.: temperature of the chilled/hot water measured as it leaves the evaporator

JOHNSON CONTROLS110












To move to another history screen, press the desired screen button to move to the desired screen in the his-tory menu: Hourly Operation, Failure, or Alarm.

There are two sets of buttons on the right side of the screen. The first set gives you access to information about past occurrences. For instance, if you press the 3 times ago button, you will see the settings as they ap-peared 3 minutes ago.

The buttons in the History Menu section allow you to move between the various screens:








6

FAILURE HISTORY SCREEN

FIGURE 45 - FAILURE HISTORY SCREEN

LD20941

You move to the Failure History screen after you press the Failure History button in the History Menu screen section.

The Failure History screen shows failure information for the last failure and up to six previous failures. The Failure History section contains the following fields of information:

Failure Name: name or type of failure

Measured Date and Time: date and time of the failure







Operation Hours: total operation hours








JOHNSON CONTROLS112












There are two sets of buttons on the right side of the screen. The first set gives you access to information about past occurrences. For instance, if you press the 3 times ago button, you will see the settings as they appeared 3 events ago. You can see up to 6 past events.









6

ALARM HISTORY SCREEN

LD20281

FIGURE 46 - ALARM HISTORY SCREEN

LD20281

View the Alarm History screen after you press the Alarm button in the History Menu section of the screen.

The Alarm History screen shows alarm information for the last alarm and up to six previous alarms. The alarm section contains the following fields of informa-tion:

Alarm Name: name or type of alarm

Measured Date and Time: date and time of the alarm







Operation Hours: total operation hours





JOHNSON CONTROLS114



Inlet Temperature: temperature of the hot or chilled water measured as it enters the evaporator












There are two sets of buttons on the right side of the screen. The first set gives you access to information about past occurrences. For instance, if you press the 3 times ago button, you will see the settings as they appeared 3 events ago. You can see up to 6 past events.





Alarm History: Press to see the Alarm History screen




6

FAILURE AND ALARM SCREEN

LD20282

FIGURE 47 - FAILURE AND ALARM SCREEN

LD20282

This screen displays failure indications (time-outs, op-eration interlock, overcooled refrigerant, over and un-der temperatures, and problems with the unit's pumps) and system alarms.

The failure light in the upper right corner is red. The alarm light is orange.

FailureWhen a failure occurs, an alarm sounds (buzzer). The type of failure button lights in the Failure section of the screen. Press the BUZZER STOP button to turn off the alarm sound. This can be done even before the failure is addressed. Turning off the buzzer does NOT fix the problem.

Press the lit failure button to access an on-screen han-dling guide for each item. An on-screen guide is avail-able for each item in the Failure and the Alarm sec-tions. An example of a solution screen is the right.

LD21302

Press the CLOSE button to return to the Failure and Alarm screen.

After fixing the problem, press the FAILURE RESET button to reset the lighted failure button.

If you press the FAILURE RESET button before fix-ing the problem, the lighted failure button will not go out, and the buzzer will sound again.

JOHNSON CONTROLS116


TABLE 30 - FAILURE LIST

FAILURE NAME

OPERATION AT FAILURE

OCCURRENCECAUSE COUNTER MEASURES

Chilled/Hot Water Time Out

Not start

Chilled/Hot water pump operation interlock and/or the chilled/hot water suspension relay was not established within a set time while in start-up.

• Check the chilled/hot water pump. • Check the chilled/hot water line. • Check the chilled/hot water flow. • Check the chilled/hot water suspension relay. • Check whether or not the pipe is clogged.

Cooling Water Time Out

Cooling water pump operation interlock was not established within a set time while in start-up.

• Check the cooling water pump. • Check the cooling water line. • Check the cooling water flow. • Check the cooling water suspension relay. • Check whether or not the pipe is clogged.

Ignition Time Out

Combustion signal was not established within 3 minutes after combustion command output, due to malfunction of air pressure switch and/or control motor.

Contact your local Johnson Controls Service Center.

Ignition Condition Unsatisfied

Ignition condition, such as shut-off valve fully-close limit switch, was not established at ignition command output.

• Check the fuel mode of burner and control panel.• Contact your local Johnson Controls Service Center.

Operation Interlock

Stop after dilution

Operation interlock was not established during solution pump automatic operation.

Check interlocked equipment.

Cooling Water Pump Interlock

Cooling water pump interlock was not established during cooling water pump operation command output.

Check the cooling water pump interlock.

Chilled/Hot Water Suspension

Stop without dilution

Chilled/Hot water flow suspension had been detected continuously during solution pump automatic operation.

• Check the chilled/hot water pump. • Check the chilled/hot water line. • Check the chilled/hot water flow. • Check the chilled/hot water suspension relay. • Check whether or not the pipe is clogged.

Chilled Water Overcooled or High Hot Water Temperature

Chilled water outlet temperature was abnormally low during cooling operation. Hot water outlet temperature increased abnormally during heating operation

• Check equipment in cooling load line. • Check the chilled/hot water flow. • Check the chilled/hot water flow control system. • Contact your local Johnson Controls Service Center.

Refrigerant Overcooled

Low refrigerant temperature during cooling operation, and then refrigerant overcool relay was activated

• Check the chilled water line. • Check the chilled water flow. • Contact your local Johnson Controls Service Center

Constantly Monitoring Interlock Stop after

dilution

Constant monitoring interlock was not established.

• Check the components of the constant monitoring interlock.

• If any of the components are not working, contact your local Johnson Controls Service Center.

Combustion Monitoring Interlock

Combustion monitoring interlock was not established during combustion.

• Check equipment connected as combustion monitoring interlock components.

• Contact your local Johnson Controls Service Center.



6

FAILURE NAME



Emergency Failure Interlock


Emergency failure interlock was not established.

Check equipment connected as emergency failure interlock components.

Low Cooling Water Inlet Temperature

Stop after dilution

Cooling water inlet temperature had been kept at its lower limit or lower for 30 minutes or longer during cooling operation

Check the cooling water inlet temperature control system.

Cooling Water Suspension (Option)


Cooling water suspension detected continuously during solution pump automatic operation while cooling operation.

• Check the cooling water pump. • Check the cooling water line. • Check the cooling water flow. • Check the cooling water suspension relay. • Check whether or not the pipe is clogged.

HG High Temperature

Stop after dilution

HG solution temperature increased abnormally • Check the cooling water line.

• Check the cooling water flow rate.• Check the cooling tower. • Purge manually (according to instructions in

SECTION 7- MAINTENANCE on Page 135).

HG High Pressure

HG pressure increased abnormally

High CutHG high pressure relay or exhaust gas high temperature relay was activated.

High Exhaust Gas Temperature

Exhaust gas temperature at HG outlet increased abnormally.


Flame Failure

Flame signal was not detected during operation, and then protect relay (burner controller) was locked out


Fuel Line Abnormal

Abnormal fuel gas (gas-fired) or oil (oil-fired) pressure was detected during combustion.

Check if gas supply pressure is within acceptable range.

HG Low Liquid Level

HG low liquid level had been detected continuously during combustion.

• Purge manually (according to instructions in SECTION 7- MAINTENANCE on Page 135).

• Contact your local Johnson Controls Service Center.Solution Circulation Pump Abnormal


Solution circulation pump thermal relay, or overheat switch was activated.


Solution Spray Pump Abnormal

Solution spray pump thermal relay, or overheat switch was activated.

Refrigerant Pump Abnormal

Refrigerant pump thermal relay, or overheat switch was activated.

Burner Fan Abnormal or Oil Pump Abnormal

Stop after dilution

Burner fan thermal relay was activated.

TABLE 30 - FAILURE LIST (CONT'D)

JOHNSON CONTROLS118


FAILURE NAME



Control Sensor Abnormal

Stop after dilution

Temperature sensor and/or pressure sensor detected abnormal value due to disconnection, short circuit, or other relevant sensors

• Tighten terminal in control panel. • Contact your local Johnson Controls Service Center.

CPU AbnormalStop after

dilutionCPU was judged to be abnormal.


Solution Pump Inverter Abnormal (Option)


Solution pump inverter protection function was activated, and the inverter output was suspended.

• Check indication of inverter alarm code.• Contact your local Johnson Controls Service Center.

AlarmWhen an alarm occurs, an audible alarm does NOT sound (buzzer). The type of alarm lights up in the Alarm section of the screen. To view the details of the alarm and the remedy, press the lighted button (the name of the alarm).

After fixing the alarm, press the ALARM RESET but-ton to reset the lighted alarm button. If you press the ALARM RESET button before fixing the alarm, the lit alarm button will not go out.

TABLE 31 - ALARM LIST

ALARM NAME CAUSE OF ALARM AND CONDITION TO RESET COUNTER MEASURES

Abnormal Purge Frequency

Purge frequency within a set time exceeded its defined value, therefore chiller-heater is suspected of poor air-tightness. Alarm is reset via alarm reset.

• Purge manually (according to instructions in SECTION 7- MAINTENANCE on Page 135).

• Contact your local Johnson Controls Service Center.Purge Abnormal

Purge switch was not turned OFF while automatic purge operation. Alarm is reset via alarm reset.

Chilled Water Overcool Prevention

Low chilled water outlet temperature during dilution operation, and then dilution operation was interrupted (cooling water pump, solution pump, and refrigerant pump operations were suspended). The dilution operation resumes when the chilled water outlet temperature rises. • Check the equipment in cooling load line.

• Check the chilled water flow. • Check the chilled water flow control system.

Refrigerant Overcool Prevention

Low refrigerant temperature during dilution operation, and then the dilution operation was interrupted (cooling water pump, solution pump, and refrigerant pump operations were suspended). The dilution operation is resumed if refrigerant temperature increases.

TABLE 30 - FAILURE LIST (CONT'D)



6

ALARM NAME CAUSE OF ALARM AND CONDITION TO RESET COUNTER MEASURES

Cooling Water Tube Fouling

Temperature difference between the absorber temperature and cooling water inlet temperature widened, therefore fouling of cooling water tube inside is likely to be accumulated. The alarm is reset via alarm reset.

• Check the cooling water line. • Check the cooling water flow. • Contact your local Johnson Controls Service Center.

HG Tube Fouling

Temperature difference between the exhaust gas temperature and HG temperature widened, therefore fouling of HG tube inside is likely to be accumulated. The alarm is reset via alarm reset.


Refrigerant Pump Stop

The Refrigerant Pump Stop button has been pressed for 1 hour or longer while operation command was output.

Press the Refrigerant Pump Auto button.

HG High Pressure Prevention

HG pressure increased and the load limit operation was activated. The alarm is reset when the HG pressure reaches 85.3 kPa. • Check the cooling water line.

• Check the cooling water flow rate. • Check the cooling tower. • Purge manually (according to instructions in

SECTION 7- MAINTENANCE on Page 135).• Contact your local Johnson Controls Service Center.

HG High Temperature Prevention

High generator solution temperature and load limit operation was activated. The alarm is reset when solution concentration reaches 158°C.

HG High Concentration Prevention Control

High solution concentration and load limit operation was activated. The alarm is reset when after 60 seconds.

Low Cooling Water Inlet Temperature

Cooling water inlet temperature decreased to its minimum limit or lower during cooling operation, and then load limit operation was activated. Alarm is reset when the cooling water inlet temperature increases.

Check the cooling water inlet temperature control system.

High Cooling Water Inlet Temperature

Cooling water inlet temperature increased to or above its maximum limit or higher during cooling operation, and the load limit operation was activated. The alarm is reset when the cooling water inlet temperature falls.

• Check the cooling water inlet temperature control system.

• Check the cooling tower.

Recording Sensor Abnormal

Chilled / hot water inlet temperature sensor, cooling water inlet temperature sensor, and/or absorber temperature sensor detected abnormal value, due to disconnection, short circuit, or other sensor/wiring disconnects. Remote setting signal was abnormal during remote SP mode (remote chilled/hot water outlet temperature setting mode) Alarm is reset via alarm reset after temperature returns to normal.

• Check the remote setting signal. • Tighten the terminal. • Contact your local Johnson Controls Service Center.

Low Battery Voltage

Voltage level of the battery in the control board fell down. Alarm is reset via alarm reset after replacement of the battery in the control board.

Replace the battery on the PWB.

TABLE 31- ALARM LIST (CONT'D)

JOHNSON CONTROLS120


This screen displays control parameters (setting method and each setting parameter), valve operation (control valve mode auto / manual, and valve position setting), operation switch (forced dilution, refrigerant pump, purge mode, and manual purge, and other appli-cable gauges and pumps), language (Japanese, English, Chinese,and Deutsch) and date and time parameters.

Press the SETTING button to access this screen.

CONTROL PARAMETERThe Control Parameter section of the SETTING screen is used to enter parameters for the cooling and heating operation, such as target temperature, automatic stop temperature, and differential to automatic restart.

Setting Method: The LOCAL and REMOTE buttons control whether the set point is being determined re-motely or through the Control Center.

Setting Base Temp.: the base set temperatures for cooling, heating, and residential hot water (RHW).

Remote Setting Diff.: the setting range with external 4~20 mADC signal

Set Point (Display): the setpoint of the chilled/hot wa-ter leaving temperature

Auto. Stop Temp.: temperature at which the chiller-heater will automatically stop

Auto. Restart Diff.: temperature difference between the temperature at which the chiller-heater will auto-matically stop and the temperature at which the chiller-heater will automatically restart

If you press the LOCAL button, the entered base tem-perature corresponds to the present target temperature. Its temperature is shown in Set Point.

If you press the REMOTE button, the setting charac-teristics of the remote Set Point are determined based on the setting base temperature and the remote setting differential. The actual target temperature is calculated depending on these settings and the remote Set Point setting signal (4-20 mADC). See the Set Point figure on the next page for more information.

SETTING SCREEN

LD20138

FIGURE 48 - SETTING SCREEN

LD20138



6LD20038a

Setting Base Temp.

Remote Setting Diff.

Setting Base Temp.

4mADC 20 mADCRemote Setpoint Setting Signal (4~20 mADC)

Set

poin

t [C

°]

Calculation of Set Point by remote 4~20 mADC Signal (in cooling)

LD21977

Setting Base Temp.

Remote Setting Diff.

Setting Base Temp. S

etpo

int [

C°]

4mADC 20 mADC

Remote Setpoint Setting Signal (4~20 mADC)

Calculation of Set Point by remote 4~20 mADC Signal (in heating)

If a failure occurs, you automatically see the failure and alarm screen.

For detailed information on how to change an entry in one of these fields, see Change Numeric Values on page 98.

VALVE OPERATIONControl Valve Mode: Auto / Manual indicates wheth-er the control valve is being operated automatically or manually. To change to manual operation mode, press and hold the Manual button for 3 seconds.

The Valve Position Setting may be changed ONLY when the Control Valve Mode Manual button is pushed.

Valve Position Setting: shows the Capacity Control Valve Position Setting, expressed as a percentage. In case of the link-less burner, this valve position is for the fuel damper motor. The air damper position is cal-culated based on the fuel and air position table.

For detailed information on how to change the valve position setting, see Change Numeric Values on page 98 .

To move to the Menu screen, set the Con-trol Valve Mode to Auto.

JOHNSON CONTROLS122


DATE AND TIMEThe date and time settings can be changed if you press the Date and Time button above the Main button. The Date and Time screen displays. Use the following pro-cedure.

When you enter the date information, note that the format to use is: YYYY / MM / DD.

LD20029a

LD20029a

1. Press the Change button.

2. Enter the correct date and time.

3. Press the Set button to set the time.

4. Press the Start button to restart the clock.

If the clock is not keeping the correct time, use the fol-lowing to fix it:

1. Press the Correct button to specify a correcting amount (+ or -).

2. Press the Set button to set the new time.

The date and time may also be updated if you press the Date and Time button on the Setting screen. The procedure is the same.

OPERATION SWITCHIn this screen section, choices can be made about the mode of operation for the various devices. Use the but-tons to make your choice. The choices are:

Forced Dilution: indicates whether forced dilution is on or off.

Refrigerant Pump: indicates whether the refrigerant pump is operating automatically (Auto mode) or is stopped (Stop mode)

Operation Mode: indicates if the unit is operation in cooling or heating mode. To change the operation mode, press and hold the Cooling or Heating button for 15 seconds.

Simultaneous: indicates whether the simultaneous residential hot water supply operation with the auxilia-ry heat exchanger is on or off (auxiliary heat exchanger equipped model only). The ON/OFF buttons control simultaneous operation.

RHW only operation: indicates whether the residen-tial hot water supply only (sole) operation with the auxiliary heat exchanger is on or off (auxiliary heat exchanger equipped model only). To change the opera-tion mode, press and hold the OFF or ON button for 15 seconds.

Fuel Type: indicates whether the fuel to be used is gas or oil (dual fuel burner equipped model only). The Gas/Oil buttons select the fuel to use.

Purge Mode: the Auto and Manual buttons control the purge operation. The lit button indicates if the purge mode is Automatic or Manual.

Manual Purge: The ON and OFF buttons control the manual purge operation. The lit button tells you if the manual purge operation is running or not. If you press the Purge Mode Auto button, the purge is done auto-matically. If you press the Purge Mode Manual button, the purge starts when you press the Manual Purge ON button. The purge stops when you press the Manual Purge OFF button.

Purge Route (if available): Indicates whether the purge route to be used is from the purge tank or the absorber. The Tank and Abso buttons select the purge route to be use.

Any of the above may be changed.



6

SINGLE LOOP CONTROLLERThe YHAU-CGN/H chiller-heater may have additional controllers. Each SDC35 Single Loop Controller is lo-cated to the left of the touch screen on the Control Pan-el on the front cover of the unit. The maximum number of controller units is two.

One use of the controller is to manage the air damper of the burner unit. Another is to control the residential hot water control valve. Separate controller units are needed for each mechanism.

All of the information in the first three sections applies to the unit no matter what it is controlling. Differences based on the different mechanism will be covered in the later sections.

LD20934

FIGURE 49 - SINGLE LOOP CONTROLLER

Included on the controller are the following:

Upper Display: shows the process variable (PV) mode or alternates between the display and set values for each item. If an alarm is triggered, the display changes. It alternates between an alarm code and the normal information.

Lower Display: shows the set point or measured variable or current transformer (SP/MV/CT) val-ue. Or it alternates between the display and set values for each item.

Mode Indicator: lights to indicate which opera-tional mode is active for the unit. The available lights are:

a. Man: if the MAN light is not lit, the unit is in AUTO mode. This is the manufacturer’s recommended setting. If the MAN light is lit, it indicates that the unit is operating in MANUAL mode. (This mode is available only for the residential hot water use.) The manufacturer does NOT recommend operat-ing the unit in MANUAL mode.

b. Remote Set Point (RSP): Indicates that the controller is using the remote set point infor-mation.

c. EV1, EV2, EV3: Indicates that one or more event relays are on.

d. OT1, OT2: Indicates that one or more con-trol output is on.

Multi-Status Display (MS): Is lit when the unit is in READY mode or when an alarm is triggered. It functions as a MV graph, a Digital Input (DI) monitor, and an internal event monitor as well. At times, the display may flash.

Mode Key: Press and hold the key to choose from any of 8 operational modes:

• 0: Mode key does not operate

• 1: Choose between AUTO or MANUAL mode (available only for residential hot wa-ter control valve controllers)

• 2: Choose between RUN or READY mode

• 3: Start or Stop Auto Tuning (AT) control mechanism

• 4: Choose the Local Set Point (LSP) mode

• 5: Releases all Digital Output latches

• 6: Choose LSP or RSP mode

• 7: Select between ON or OFF communica-tion

SELECT LANGUAGEPress the button to choose the language to be shown in the Control Center. Various languages are available (Japanese, English, Chinese and Duestch).

JOHNSON CONTROLS124


Display Key: Changes the display item in the op-eration display mode

Movement Keys: Serve several purposes. The Up or Down arrow keys can increase or decrease the numeric value of a digit in a display. The Right Arrow key shifts the position of the digit in the display. The Up/Down keys can also be used to change the bank or display item

Enter Key: Press to begin changing the settings in the display (numbers begin to flash). Press again to finalize the changes (numbers change from flashing to steady)

para key: Press for 2 seconds or longer to change between the operation display mode and the setup display mode.

Loader Connector: Allows the connection to a PC. Requires the dedicated cable that is supplied with the Smart Loader Package

Run ModeWhen the control command that comes from the Con-trol Panel is ON, the controller is in RUN mode. That means the controller is ready to use.

LD20935

MV Graph

FIGURE 50 - RUN MODE

The Multi-Status Display functions as a simple bar graph when the unit is in RUN mode. The graph tells you what the control output of the unit is from 0~100%.

Ready ModeWhen the Control Panel command is OFF, the control-ler is in READY (stand-by) mode. The controller is waiting for the command to shift to RUN mode.

In READY mode, the Multi Status Display flashes slowly. All the lamps in the display are lit.

LD20936

FIGURE 51 - READY MODE



6

Alarm ModeWhen the controller receives an alarm signal, the Up-per Display flashes slowly. The information in the dis-play alternates between the normal information and the alarm code.

In addition, the Multi-Status Display lights ripple through the left and right lights. See an example of what the single loop controller in alarm mode might look like below.

FIGURE 52 - ALARM MODE

LDxxxxx

LD20937

JOHNSON CONTROLS126


Alarm CodesThe following table contains the alarm codes for the controller, the name of the failure that triggered the alarm, the cause of the alarm, and the action needed to correct the problem. The codes are the same for both mechanisms covered in this document.

TABLE 32 - ALARM CODESALARM CODE FAILURE NAME CAUSE CORRECTIVE ACTION

AL01PV input failure (over-range)

Sensor burnoutIncorrect wiringIncorrect PV input type setting

Check the wiringSet the PV input type again

AL02PV input failure (under-range)

AL03

Cold Junction (CJ) failure

Terminal temperature is faulty (thermocouple)

Check the ambient temperature

PV input failure RTD 1Sensor burnoutIncorrect wiring

Check the wiring

AL05RSP input failure (over-range) (Displayed in RSP mode) 2 Sensor burnout

Incorrect wiringIncorrect RSP input type setting

Check the wiringSet the RSP input type again

AL06

RSP input failure (under-range) (Displayed in RSP mode)

AL07Motor Feed Back (MFB) input failure

BurnoutIncorrect wiring

Check the wiringCheck the MFB input valve

AL10 Motor adjustment failure

BurnoutIncorrect wiringPower for motor is shut down

Check the wiringAdjust the motor after checking power for the motor.

AL11CT input failure (Over-range) (CT input 1,2, or both) 2

A current exceeding the upper limit of the display range was measured.The number of CT turns or the number of CT power wire loops is incorrectly set. Or, the wiring is incorrect.

Use a CT with the correct number of turns for the display rangeReset the number of CT turnsReset the number of CT power wire loopsCheck the wiring

AL70Analog to Digital (A/D) conversion failure

A/D converter is faulty Replace the controller unit

AL95 Parameter failure Power is shut down while the data is being setData is corrupted by noise Restart the unit

Set the data again (set data for AL95/97 and adjustment data for AL96/98)Replace the controller unit

AL96 Adjustment data failure

AL97Parameter failure (RAM area)

Data is corrupted by noiseAL98

Adjustment data failure (RAM area)

AL99 ROM failure ROM (memory) is faultyReset the controller unitReplace the controller unit

1. RTD: Resistance Temperature Detector2. CT: Current Transformer



6

Operational Display

Air Damper ControlWhen the controller is being used to manage the Air Damper, press the Display key to view the following:

• Upper Display: Air damper opening (shown as a %) or Fb (feedback value is indicated in the lower display)

• Lower Display: Control target of air damper (shown as a %), capacity control output to the air damper (shown as a %) or the Feedback signal via the potentiometer (shown as a %)

LD20938

Air damperopening (%)

Control targetof air damper (%)

Air damperopening (%)

Control outputto air damper (%)

Fb: Feedbackindication mode

Feedback signalvia potentiometer (%)

FIGURE 53 - AIR DAMPER CONTROL

JOHNSON CONTROLS128


Hot Water Control ValveWhen the controller is being used to manage the Hot Water Control Valve, press the Display key to view the following:

• Upper Display: The Hot water control valve opening (shown as a %) or Fb (feedback value is indicated in the lower display)

• Lower Display: The Control target of the hot water control valve (shown as a %), the Control output to the hot water control valve (shown as a %), or the feedback signal via the potentiometer (shown as a %)

FIGURE 54 - HOT WATER CONTROL VALVELD20939

Hot water controlvalve opening (%)

Control target of control valve (%)

Control output to control valve (%)


Feedback Signal via potentiometer (%)

FB: Feedback Indication Mode



6

AUTO/MANUAL Mode (RHW only)The ability to choose between automatic and manual mode is available when the controller is being used to manage the residential hot water control valve. It is not available for any other mechanism.

To access manual mode, press the Display button. Then, press the Mode button. Hold it for at least 2 sec-onds. The Lower Display will start to flash and MAn appears.

Once the Lower Display changes and MAn appears, release the Mode button. The information in the Lower Display changes to the control output for the hot wa-ter control valve. At this point, the information may be changed.

Press the Up/Down arrow keys to change which of the numbers are flashing. The one that flashes is the one that can be changed. Use the Left arrow key to change the value of the number.

FIGURE 55 - CHANGING INFORMATION IN MANUAL MODE LD20940


Flashing digit can be changed

Target digit is moved to left side

Control target is changed

To return to automatic mode, press and hold the Mode button for 2 seconds. The Lower Display will change to Auto. Release the Mode button to change the dis-play mode to normal.

JOHNSON CONTROLS130


OPERATION MODE CHANGEOVER

Changeover to Cooling Mode1. Press and hold the Operation Mode Cooling but-

ton on the Setting screen for 15 seconds. See Fig-ure 48 on page 120.

2. Press the Cool or Heat Simultaneous OFF button on the Setting screen See Figure 48 on page 120.

3. Press the RHW only operation OFF button (if ap-plicable) on the Setting screen.

4. Set each cooling or heating changeover valve to cooling mode. See Table 31 on page 118 for in-formation.

5. Verify the cooling water piping system is filled with water.

6. Verify that the tapped air is vented.

7. Open (or close) each valve in the cooling water piping system to ensure the cooling water circula-tion in the system.

8. Manually operate the cooling water pump and cooling tower fan.

9. Verify these can be operated and the cooling water is circulated.

Do NOT operate the cooling water pump without operating the chilled/hot water pump to prevent the freezing of chilled/hot water.

10. While the chiller-heater is stopping, purge the purging tank, See Manual Method to Purge Non-Condensable Gas from the Purge Tank on page 140 .

11. While the chiller-heater is stopping, purge the absorber, See Manual Method to Purge Non-Condensable Gas Directly from Absorber on page 140

12. Operate the chiller-heater.

13. Purge the absorber again. See Manual Method to Purge Non-Condensable Gas Directly from Ab-sorber on page 140.

14. Press the Purge Mode Auto button on the Setting screen. See Automatic Method to Purge Non-con-densable Gas from the Purge Tank on page 141.

Changeover to Heating Mode1. Select the appropriate method to treat the cooling

water in the absorber and condenser tubes during the heating operation period. See Storage Method of the Cooling Water During Heating Operation Period on page 163.

If the operation mode (Cooling or Heat-ing) is changed periodically, clean each heat transfer tube with a nylon brush during this step.

2. Press and hold the Operation Mode Heating but-ton on the Setting screen for 15 seconds. See Fig-ure 48 on page 120.

3. Press the Cool or Heat Simultaneous OFF but-ton on the Setting screen. See Figure 48 on page 120.

4. Press the RHW only operation OFF button (if ap-plicable) on the Setting screen.

5. Set each cooling or heating changeover valve to Heating mode. See Table 31 on page 118.

6. While the chiller-heater is stopping, purge the purge tank. Use the procedure shown in Manual Method to Purge Non-Condensable Gas from the Purge Tank on page 140 .

7. Close all of the manual valves in the purge line (V10, V11, V12, V13, V14, V15, and V16).

8. Press the Purge Mode Auto button on the Setting screen.

Use Simultaneous Residential Hot Water Supply Mode (Option) In this mode, residential hot water is supplied through the auxiliary heat exchanger (option) while chilled wa-ter or hot water is supplied through the evaporator.

1. Check that the correct Operation Mode button (Cooling or Heating) is pressed on the Setting screen. See Figure 48 on page 120.

If you need to change the operation mode, remember to press and hold the button for 15 seconds.



6

2. Press the Simultaneous ON button on the Setting screen. See Figure 48 on page 120.

3. Press the RHW only operation OFF button on the Setting screen.

4. Set each Cooling or Heating changeover valve and manual valve to the desired operation mode (“Simultaneous cooling and residential hot water supply” mode or “Simultaneous heating and resi-dential hot water supply” mode). See Table 31 on page 118.

Changeover to Residential Hot Water Sole Supply Mode (Option) In this mode, residential hot water is supplied through the auxiliary heat exchanger (option), No chilled/hot water is supplied through the evaporator.

1. Choose how to treat the cooling water in the ab-sorber and condenser tubes during the residential hot water supply operation period. See Storage Method of the Cooling Water During Heating Op-eration Period on page 163 for more informa-tion and instructions.

2. Choose how to treat the chilled/hot water in the evaporator tubes during the residential hot water supply operation period. See Storage Method of the Cooling Water During Heating Operation Pe-riod on page 163 for more information and in-structions.

3. Verify the following two manual valves are open:

a. on the weak solution line from the low-tem-perature heat exchanger to the solution flow control float valve in the high-temperature generator.

b. on the strong solution line from the high-temperature heat exchanger to the solution spray pump.

4. Press and hold the Forced Dilution ON button on the Setting screen for 10 seconds. See Figure 48 on page 120.

5. The solution pump and refrigerant pump will start independently.

The chilled/hot water pump should be op-erating during forced dilution to prevent freezing of the chilled/hot water.

6. Open the refrigerant manual blow valve. For the location of the refrigerant manual blow valve, see Figure 57 on page 137, Figure 58 on page 138, or Figure 59 on page 139 . The refrigerant in the evaporator is diverted into the absorber.

7. Observe the liquid level at the lower part of the evaporator through the level gauge (G102).

8. Immediately after the refrigerant liquid level ap-pears in the level gauge (G102), close the refriger-ant manual blow valve (turn it to the right until it stops).

9. Press the Refrigerant Pump Stop button on the Setting screen. See Figure 48 on page 120.

10. The refrigerant pump stops. Run the solution pump independently for 10 minutes.

11. Press the Forced Dilution OFF button on the Set-ting screen. See Figure 48 on page 120. The so-lution pump stops.

12. Press the Refrigerant Pump Auto button on the Setting screen. See Figure 48 on page 120.

13. Keep this condition for 30 minutes. The solution liquid level in the high-temperature generator gradually rises.

14. After the solution liquid level in the high-temper-ature generator shows full, close the two manual valves:

a. on the weak solution line from the low-tem-perature heat exchanger to the solution flow control float valve in the high-temperature generator.

b. on the strong solution line from the high-temperature heat exchanger to the solution spray pump.

15. Set each Cooling or Heating changeover valve and manual valve to Residential hot water supply mode. See Table 31 on page 118.

16. Press and hold the Operation Mode Heating but-ton for 15 seconds. The button is located on the Setting screen. See Figure 48 on page 120.

17. Press the RHW only operation ON button on the Setting screen.

JOHNSON CONTROLS132


18. While the chiller-heater is stopping, purge the purging tank, See Manual Method to Purge Non-Condensable Gas from the Purge Tank on page 140 .

19. Close all of the manual valves in the purge line (V10, V11, V12, V13, V14, V15, and V16).

20. Press the Purge Mode Auto button on the Setting screen.

FIGURE 56 - CHANGEOVER VALVE LOCATIONS



6

TABLE 33 - CHANGEOVER VALVE OPERATIONOPERATION

MODEVALVE OPERATION/LOCATION

HG ->E Ref

E->A Ref

LG ->C Ref

Return

HG Sol Supply

HG Sol Return

RHW Ref

Supply

RHW Ref

Return

LG->HG Ref

Return

Purge valves

Cooling X X Ø Ø Ø X X X Set to automatic purge of the purging tank

Heating Ø Ø Ø Ø Ø X X X Close V10, V11, V12. V13. V14,

V15, V16Simultaneous cooling and residential hot water supply

X X Ø Ø Ø Ø Ø X Set to automatic purge of the purging tank

Simultaneous heating and residential hot water supply

Ø Ø Ø Ø Ø Ø Ø X Close V10, V11, V12. V13. V14,

V15, V16

Residential hot water supply (sole mode)

X X X X X Ø Ø Ø Close V10, V11, V12. V13. V14,

V15, V16

JOHNSON CONTROLS134





7

SECTION 7 – MAINTENANCE

When inspecting and maintaining the absorption chill-er-heater, observe the following items:

• Never splash water over the electrical parts in-stalled to the control panel and absorption chiller-heater.

• Do not change the set values of the control de-vices and safety switches without permission.

• Do not turn the internal cycle control valve of the absorption chiller-heater without permission.

• When replacing the oil in the vacuum pump, be sure to turn OFF the main circuit breaker (MCB1) in the control panel.

EXHAUST DUCT INSPECTIONInspect the exhaust duct periodically to check for a gas leak.

If you smell gas, do not operate the ma-chine or manipulate the switches until the gas smell vanishes.

VALVE INSPECTIONThe chiller-heater is equipped with a refrigerant man-ual blow valve (V8) that blows refrigerant from the re-frigerant tank to the absorber directly. See Figure 57 on page 137, Figure 58 on page 138, and Figure 59 on page 139.

The valve must not be tampered with or have its set-tings altered. Daily maintenance or inspection is the only reason to touch the valve.

During service and maintenance work, be sure to turn OFF the main circuit breaker (MCB1) and fully close the main valve of fuel gas line. If not, it may cause electric shock and burn.

Contact your local Johnson Controls Service Office for inspection and main-tenance of the unit. Improper inspection and maintenance can cause a machine malfunction and injury.

SOLENOID VALVESThe absorption chiller-heater is equipped with the fol-lowing solenoid valves.

TABLE 34 - SOLENOID VALVESSOLENOID VALVE

NAME SYMBOL FUNCTION

Purge solenoid valve (1) SV1 Close vacuum pump pipingPurge solenoid valve (2) SV2

Refrigerant blow solenoid valve

SV3Close automatic refrigerant blow piping

PUMP SHUT OFF VALVESThe chiller-heater is equipped with the pump shut off valves shown in Figure 64 on page 146 . They are used for inspection of the pumps.

If the absorption chiller-heater is operated with incor-rect valve settings, the pump may be damaged. Do NOT tamper with the valves.

AIR PURGE VALVES AND DRAIN VALVESThe chiller-heater is equipped with air purge valves and drain valves for chilled/hot water and cooling water. They are used to drain the chilled/hot water, and cooling water. They also purge air when water is supplied.

PURGE VALVESThe chiller-heater is equipped with the purging valves shown in Figure 57 on page 137, Figure 58 on page 138, and Figure 58 on page 138. For operation of those valves, see Purge Procedure on page 136.

JOHNSON CONTROLS136

FORM 155.32-ICOM1.EN.GBISSUE DATE: 3/29/2018SECTION 7 – MAINTENANCE

START THE CHILLER-HEATER AFTER IT HAS BEEN STOPPED FOR A LONG PERIODWhen starting the chiller-heater after stopping it for a long period, check it according to the following pro-cedure.

Checks Before Operation Starts1. Check the insulation of the Control Center and

electric system.

2. Check the operation of the Control Center and safety devices.

3. Check that the refrigerant blow valve V8 is closed.

4. Check the vacuum level in the machine. Use pres-sure gauge of the high-temperature generator.

It should be less than -0.1 MPaG.

5. Check the fuel gas supply.

6. Press the Refrigerant Pump Stop button on the Setting screen.

If the checks show no problems, start the chiller-heater.

CHECKS AFTER OPERATION STARTS1. 10-15 minutes after the chiller-heater and the so-

lution pump start, check the level gauge of the re-frigerant tank.

2. If the refrigerant level is within the level gauge, press the Refrigerant Pump Auto button.

3. Observe the operation for a while. Check that the refrigerant liquid level does not drop.

4. Use the procedure shown in Purge Procedure on page 136, to purge air from the low pressure side (absorber).

Remember: Only deionized water may be used as the refrigerant in the chiller-heater

PURGE PROCEDUREAir must be purged from the chiller-heater to maintain its performance and prevent deterioration of its internal parts. This chiller-heater has an automatic purge sys-tem.

Even if the automatic purge mode is used during nor-mal operation, perform the manual operation for the purging tank and absorber periodically. For the purging period, see Table 34 on page 135.

CAPACITY CHECK METHOD OF VACUUM PUMPFor commissioning and regular maintenance, check the capacity of the vacuum pump first according to the following procedure.

1. Check the oil level in the vacuum pump.

2. If the oil is cloudy, it contains water and must be replaced with new oil.

See the Operation Manual for the Vacuum Pump for more information on how to change the oil.

3. Open the gas ballast (remove the plug).If the purge unit is operated with the gas ballast closed, water is left in the oil. The oil will need to be replaced more frequently.

4. Set the valves according to pattern A. See Figure 65 on page 147 and Table 33 on page 133.

5. Press the Purge Model Manual button on the Set-ting screen.

6. Press the Manual Purge ON button. The vacuum pump starts. The solenoid valves SV1 and SV2 open.

7. After another 1-2 minutes, confirm that the vacu-um gauge stands at 0 - approximately 1 kPa.

8. Press the Manual Purge OFF button. The vacuum pump stops.

9. Wait for 30 minutes.

10. Confirm that the vacuum down is within 2 kPa.


SECTION 7 – MAINTENANCEFORM 155.32-ICOM1.EN.GB ISSUE DATE: 3/29/2018

7

A

B

C

D

E

F

H

G

LD20189180EX(S/H)NG - 300EX(S/H)NG

FIGURE 57 - LOCATION OF MANUAL VALVE IN PURGING SYSTEM 120-300EX(H/S)

A Purge valve from purge tank (V10)B Purge valve from absorber (V13)C Purge valve from absorber (V11)D Purge Main Valve (V14)E Purge valve from absorber (V16)F C/H Changeover Valve VL (Option)G Refrigerant Blow Valve (V8) H Refrigerant Pump

Gas Duct Side View Evaporator Side View

120-300EX(H/S)

JOHNSON CONTROLS138



A

B

C

D

F G HE

FIGURE 58 - LOCATION OF MANUAL VALVE IN PURGING SYSTEM 360-500EX(H/S)

A Purge valve from absorber (V10)B Purge valve from absorber (V11)C Purge valve from absorber (V13)D Purge valve from absorber (V16)E Purge main valve (V14)F C / H changeover valve VL (Option)G Refrigerant blow valve (V8)H Refrigerant pump


360-500EX(H/S)



7


A B

D

C

EF

FIGURE 59 - LOCATION OF MANUAL VALVE IN PURGING SYSTEM 560-1600EXW3(H/S)

A C / H Changeover Valve VL (Option)B Refrigerant Blow Valve (V8) C Refrigerant pumpD Purge valve from absorber (V10)E Purge valve from absorber (V11)F Purge main valve (V14)


560-1600EXW3(H/S)

JOHNSON CONTROLS140


MANUAL METHOD TO PURGE NON-CONDENSABLE GAS DIRECTLY FROM ABSORBERWhen the chiller-heater operates at a lower capacity than usual for a long period of time or when it restarts after a power failure, the absorber may contain non-condensable gases. If the machine starts under these conditions, its performance and efficiency go down. If this happens, purge non-condensable gas directly from the absorber manually according to the following pro-cedure.

1. Set the valves according to pattern B See Figure 64 on page 146 and Table 31 on page 118 .

2. Press the Purge Mode Manual button on the Set-ting screen.


4. After step 3 begins, confirm that vacuum gauge stands at 0-~1 kPa.abs.

5. Reading the vacuum gauge, open valve V13.

6. Then, open valve V16 gradually. Confirm that the pressure on the vacuum gauge increases slightly.

If the pressure decreases when valve V16 opens, the vacuum pump capacity is too small. Close valve V16 at once. See Table 50 on page 174 and check the purge line

7. If no problems are found, open valve V16 the rest of the way.

Make sure the valve is completely open.

8. Continue to purge for 2 to 3 hours.

9. Close valves V13 and V16.

10. Press the Manual Purge OFF button. The vacuum pump stops.

For information on how to set up an automatic purge, see Automatic Method to Purge Non-condensable Gas from the Purge Tank on page 141.

MANUAL METHOD TO PURGE NON-CONDENSABLE GAS FROM THE PURGE TANKWhile the absorption chiller-heater operates, non-condensable gas collects in the purging tank. You can purge those gases manually using the following pro-cedure.

1. Set the valves according to pattern C See Figure 64 on page 146 and Table 31 on page 118.

2. Press the Purge Mode Manual button.


4. After 1-2 minutes, confirm that the vacuum gauge indicates approximately 1 kPa.

5. Verify that valve V10 is open.

6. Reading the vacuum gauge, gradually open valve V11.

7. The manual purge procedure is complete when the pressure reaches 3 kPa and below on the vac-uum gauge.

8. Close valve V11.

9. Press the Purge Pump OFF button. The vacuum pump stops.

For information on how to set up an automatic purge, see Automatic Method to Purge Non-condensable Gas from the Purge Tank on page 141.



7

AUTOMATIC METHOD TO PURGE NON-CONDENSABLE GAS FROM THE PURGE TANKThis chiller-heater has an automatic purge system. The vacuum pump starts and stops by detecting the pressure inside the purge tank.

1. Set the valve according to pattern D. See Figure 64 on page 146 and Table 31 on page 118.

2. Press the Manual Purge OFF button.

3. Press the Purge Mode Auto button.

4. The purge solenoid valves automatically open and close.

During the automatic purge operation, the vacuum pump starts when the purging tank pressure increases to 7 kPa abs and stops when it decreases to 3 kPa abs.

When you replace the oil in the vacuum pump or belt or perform maintenance work while the absorption chiller-heater is running, be sure to turn off the circuit breaker of the vacuum pump in the con-trol panel. If not, the vacuum pump could start abruptly and cause injury.

JOHNSON CONTROLS142


FIGURE 60 - YHAU- CGN/H DIRECT FIRED CHILLER-HEATER FLOW DIAGRAM - HEATING ONLY (EVAPORATOR)



7

FIGURE 61 - YHAU- CGN/H DIRECT FIRED CHILLER-HEATER FLOW DIAGRAM - RESIDENTIAL HOT WATER (AUXILIARY HEAT EXCHANGER)

JOHNSON CONTROLS144


FIGURE 62 - YHAU- CGN/H DIRECT FIRED CHILLER-HEATER FLOW DIAGRAM - SIMULTANEOUS COOLING AND RESIDENTIAL HOT WATER ONLY



7

FIGURE 63 - YHAU- CGN/H DIRECT FIRED CHILLER-HEATER FLOW DIAGRAM - SIMULTANEOUS HEATING AND RESIDENTIAL HOT WATER

JOHNSON CONTROLS146


FIGURE 64 - PROCESS AND INSTRUMENTATION DIAGRAM - COOLING ONLY

317-2215780



7

TABLE 35 - PURGE VALVE OPERATION

PURGING PATTERN USE OPERATION

VALVE OPERATION/LOCATIONV10 V11 V14 V13 V16

A Check capacity of vacuum pump – × × ×

B Direct purging from absorberPreparation × ×

Starting purging ×

C Manual purging from purging tankPreparation × × ×

Starting purging × ×D Automatic purge of the purging tank × ×

: Fully open valve. X: Fully closed valve.

FIGURE 65 - YHAU- CGN/H DIRECT FIRED CHILLER-HEATER FLOW DIAGRAM - COOLING ONLY

JOHNSON CONTROLS148


REFRIGERANT REFINING METHODRemember: Only deionized water may be used as the refrigerant in the chiller-heater!

With an increase in the operation time of the chiller-heater, some of the solution can mix in with the refrig-erant. Mixing the solution and the refrigerant lowers the refrigerating capacity. To prevent this, the refriger-ant must be refined periodically.

Refine the refrigerant according to the following pro-cedure. The chiller-heater must be operating to refine refrigerant.

When refining refrigerant, operate the absorption chill-er-heater under a low load (50% or less) for higher re-fining efficiency. Note that the refrigerating capacity is dramatically reduced during the refrigerant refining operation.

1. Remove the cap of the refrigerant manual blow valve.

For the location of the refrigerant manual blow valve, see Figure 57 on page 137 and Figure 58 on page 138 .

2. Turn the spindle in the valve to the left using an 8 mm hexagon wrench to start refining the refriger-ant.

3. After the refining process is complete, close the spindle in the valve (turn it to the right until it stops).

4. Return the valve cap. There is an O-ring between the cap and valve. When fitting the cap, make sure that the O-ring is set normally.

The time required for refinement of the refrigerant depends on the current load condition. Constantly check the liquid level in the refrigerant tank while the re-frigerant is being refined. If the refriger-ant liquid level appears in the level gauge of the refrigerant tank, close the valve immediately and completely.

MANUAL REFRIGERANT BLOW DOWN AND DILUTING METHODWhen the chiller-heater stops suddenly due to a power failure, the solution can become crystallized. If this happens, dilute the solution manually according to the following procedure.

Perform the following procedure immedi-ately after the power is restored.

1. Press the Forced Dilution ON button The solution pump and the refrigerant pump start.

2. Remove the cap of the refrigerant manual blow valve.


3. Turn the spindle in the valve to the left with the 8 mm hexagon wrench. The refrigerant in the refrig-erant tank is diverted into the absorber.

4. Watch the liquid level of the refrigerant tank. Im-mediately after the refrigerant liquid level appears in the level gauge of the refrigerant tank, close the valve (turn it to the right until it stops).

5. Press the Refrigerant Pump Stop button. The re-frigerant pump stops.

6. Let the solution pump operate independently for 30 minutes.

7. Press the Forced Dilution OFF button to stop the solution pump.

8. Press the Refrigerant Pump Auto button.




7

DECRYSTALLIZATION METHODEven if the solution in the absorption chiller-heater is crystallized during operation, it can be melted if the crystallization is not severe. Since it becomes more dif-ficult to melt the crystals as time passes, perform the following operation immediately when crystallization is detected. If the crystals cannot be melted by the fol-lowing procedure, notify your local Johnson Controls Service Center immediately.

Indications of Crystallization• The refrigerating capacity goes down. The liq-

uid level in the absorber drops. Cavitation noise comes out the solution circulation or the solution spray pump.

• One of the following buttons is lit and the solution pump trips:

• Sol. Circu P. Abnormal

• Sol. Spray Pump Abnormal

• The solution level can be seen through the level gauges on the high temperature generator.

• The liquid level in the absorber is low and the so-lution level can be seen through the high tempera-ture generator level gauges (G104) white.

• The liquid level in the absorber falls and the tem-perature of the solution returning from the genera-tor is drops.

DECRYSTALLIZATION1. Stop the chiller-heater. If the solution pump

tripped, reset the thermal relay.

2. Disconnect the electrical wiring of the solution pump.

3. Navigate to the Setting screen on the Control Pan-el.

4. Press the Forced Dilution ON button. Since the electrical wiring of the solution pump is disconnected, only the refrigerant pump starts.

5. Remove the cap of the refrigerant manual blow- down valve.


6. Turn the spindle in the valve to the left with the 8 mm hexagon wrench.

The refrigerant in the refrigerant tank diverts into the absorber.

7. Watch the liquid level of the refrigerant tank.

8. Immediately after the refrigerant liquid level ap-pears in the level gauge of the refrigerant tank, close the refrigerant manual blow-down valve (turn it to the right until it stops).

9. Press the Refrigerant Pump Stop button. The re-frigerant pump stops.

10. Press the Forced Dilution OFF button.

11. Re-connect the electrical wiring of the solution pump.

12. Press the Forced Dilution ON button. The solu-tion pump starts.

13. Press the Control Valve Mode Manual button.

14. Set the Valve Position Setting to 30 - 40%. For detailed information on how to change the setting, see Change Numeric Values on page 98 .

15. Observe the liquid level in the absorber.

16. When the liquid level in the absorber drops, press the Forced Dilution OFF button.

17. Repeat steps 12 through 16 three - four times. If the liquid level in the absorber does not go down, the crystals have melted.

JOHNSON CONTROLS150


18. Let the solution pump operate independently for about 30 minutes. Constantly observe the liquid level in the absorber while the solution pump op-erates.

19. After about 30 minutes, stop the solution pump.

20. Press the Refrigerant Pump Auto button.


PRECAUTIONS FOR DECRYSTALLIZATION• Cycle the chilled or hot and cooling water pumps

off and on during the melting process.

• Remove any sensors that are sensitive to heat be-fore you start the melting operation. The tempera-ture of the chilled or hot and cooling water that remains in the absorption chiller-heater may rise to about 70°C.

• When you start the chiller-heater after melting the crystals, discharge the chilled/hot water and cool-ing water first. If that water is left in the machine, the paint on the inside walls may be peeled off.

MAINTENANCE ITEMSMaintenance and inspection items along with standard inspection periods are shown in the next table. For de-tails, contact your local Johnson Controls Service Cen-ter.

Inspection frequency may be adjusted according to the actual operating conditions.



7

TABLE 36 - MAINTENANCE AND INSPECTION TASK CONTENTS FREQUENCY SCOPE

Recording of operation data

Collect the operation data (Refer to 155.31-CL1) and check the data with the data collected during the factory test.

Weekly C

Check of liquid level See Table 49 on page 174. Check the liquid level at each part. Daily C

Refining of refrigerantSee Refrigerant Refining Method on Page 148. Refine the refrigerant.

every 2-3 weeks S

Manual purging from purging tank

See Purging Procedure on Page 136. Manually purge non-condensable gas from the purging tank.

Since, the machine has an automatic

purge system, perform the purge

once at the beginning of the seasons every

year.

S

Manual purging from absorber

See Purging Procedure on Page 136. Manually purge non-condensable gas from the absorber.

every 2-3 months S

Replacement of oil in vacuum pump

Replace the oil in the vacuum pump.

monthly

C

Check of Vacuum PumpAfter the replacement of the lubricant oil for the vacuum pump, be sure to pull the pulley belt and check the smooth motion of the pulley.

C

Appearance check

Check the outside of the unit for damage (e.g., leakage for chilled/hot water and cooling water, rusting, or other obvious damage). Check the solution pump and refrigerant pump for abnormal sounds and vibration.

C

Measurement of insulation resistance of electric devices

Measure the insulation resistance of the main circuit and motors (solution pump, refrigerant pump) mainly to check for lowering of insulation. When measuring the insulation resistance, be sure to disconnect the wires of the temperature controller, and other relevant controllers that may cause interference. yearly

S

Check of terminals for looseness

Check each terminal in the control panel for looseness. SCheck of operation of control panel

Check the operation of the control panel to prevent troubles caused by malfunction of the control panel.

S

Check of capacity of purge unit

See Purging Procedure on Page 136. Check the capacity of the purge unit.

monthly S

Check of leakage through purge solenoid valves

By measuring vacuum down speed, check for leakage through purge solenoid valves.

yearly S

Overhaul check of purge solenoid valves

Perform overhaul of purge solenoid valves. S

Check of airtightnessMeasure the quantity of non-condensable gas discharged from the vacuum pump.

every 2-3 months S

Check continuity of protective bonding circuit

Check continuity of protective bonding circuit. yearly S

Analysis of quality of chilled/hot water, and cooling water

Reliable water treatment companies are available in most larger cities to supply a water treating process which will greatly reduce the corrosive and scale forming properties of almost any type of water. Be sure to request the first analysis within one month after the test operation is started.

every 2-3 months C

C = Customer, S = Johnson Controls Service

JOHNSON CONTROLS152


TASK CONTENTS FREQUENCY SCOPE

Check of quantity of solution and refrigerant

The solution is not consumed, but the refrigerant is discharged little by little each time purging is performed. If the quantity of the refrigerant becomes insufficient, the condensation preventive function does not work normally. Accordingly, check the quantity of the refrigerant.

yearly (during operation

at 100%)S

Disassembly inspection and cleaning of solution pump and refrigerant pump

Sleeve bearings are used for the solution pump and refrigerant pump, and they are normally lubricated with water solution of lithium bromide and refrigerant. Since excessive wear can cause a pump problem, disassemble and inspect them. The internal strainer must also be cleaned.

2-3 years or 8,000 hrs

S

Disassembly inspection and cleaning of vacuum pump

Disassemble, inspect, and clean the vacuum pump to maintain its capacity.

4 years S

Replacement of gaskets of airtight parts

Replace the gaskets of the airtight parts to maintain the airtightness of the absorption chiller-heater.

4 years S

Inspection of chilled /hot water box and replacement of packing Open the waterbox cover periodically, check the inside paint for

damage, and check the inside of the tubes for scales.

every 2 years S

Inspection of cooling waterbox and replacement of gasket

every 1 year S

Repair of paint (or epoxy paint) of inside wall of chilled/hot water and cooling waterboxes

Repair or repaint the inside wall .Chilled/hot water: 2

years Cooling water: \1 year

S

Analysis of solution and addition of inhibitor

The concentration of the inhibitor must be kept proper to prevent corrosion of inside parts. Analyze the solution to detect leakage in the early period.

every 6 months S

Addition of surface active agent

Since surface active agent is discharged out of the machine gradually each time purging is performed new agent must be added. If too much surface active agent is added, however, it will have the opposite effect. Add approximately 700 cc per year.

1 year S

Filtration and refining of solution

As the inside of the chiller-heater is corroded, corrosion particles are increased. Particles accumulated on the heat exchange tube surfaces lower the heat exchange rate, that is, the performance. Accordingly, filter the solution as directed.

5-6 years S


TABLE 36 - MAINTENANCE AND INSPECTION (CONT'D)



7

TASK CONTENTS FREQUENCY SCOPECheck of operation of various safety relays

Check the operation of the safety relays.

yearly

S

Cleaning of tubes with brush or water jet (Absorber, condenser)

If foreign matter sticks to the inside of the tubes of the chiller-heater, refrigerating performance is lowered and the tubes become corroded. Accordingly, remove slime, soft scales, and other foreign matter from the inside of the tubes.

S

Cleaning of tubes with brush or water jet (Evaporator)

every 2 years*

S

Chemical cleaning of tubes (Absorber, condenser)

Since hard scales sticking to the tubes cannot be removed with a brush or water jet, remove them chemically, depending on the condition.

S

Chemical cleaning of tubes (Evaporator)

every 4 years* S

Check for slight leakage

Vacuum and airtightness must be maintained to ensure the reliability and performance of the absorption chiller-heater. Accordingly, recommend that the machine should be checked for slight leakage with a special vacuum and airtightness diagnostic device.

every 2 years S

Eddy current test on tubes (Absorber, condenser) Check the inside of the tubes for corrosion caused by bad

quality chilled/hot water, and cooling water.

every 4 years or 10,000 hours

S

Eddy current test on tubes (Evaporator)

every 6 years S

Check for leakage of pilot solenoid valves and gas shut-off valves.

Check for leakage to outside and passing through the valve sheets.

every 6 months

S

Check operation of combustion system

Check the operation of the ignition system, air damper, fuel gas damper, capacity control motors, burner fan, and protect relay (burner controller).

S

Check and adjust combustion

• Measure the concentration of O2 and CO. Adjust it if necessary to ensure suitable and efficient combustion.

• Collect the combustion data. Check the data collected during the commissioning.

S


NOTE: *If water quality analysis indicates necessity.

TABLE 36 - MAINTENANCE AND INSPECTION (CONT'D)

JOHNSON CONTROLS154


2. Press the Purge Mode Manual button.

3. Press the Manual Purge ON button.

The purge solenoid valves open. The purge operation begins.

4. Press the Manual Purge OFF button when the purge process is complete.

5. The solenoid valves close.

After maintenance of the Purge system is complete, be sure to reset the purge mode to Auto. Continued operation in the manual mode may cause damage to and failure of the chiller-heater.

6. Press the Purge Mode Auto button

LIFESPAN FOR VARIOUS PARTSThe replacement periods for some parts are shown below. The time periods shown in the following table are for reference only. The replacement period may be changed according to the actual environment, fre-quency of use, and other contributing factors. Other parts may need to be replaced if used incorrectly.)

Refrigerant Pump Manual StopThe refrigerant pump can be stopped manually for maintenance purposes. It can be stopped even while the chiller-heater operates.

1. Navigate to the Setting screen on the Control Panel.

2. Press the Refrigerant Pump Stop button.After maintenance of the refrigerant pump is complete, be sure to reset it to Auto. Continued operation in stop state may cause damage to and failure of the chiller-heater.

Purge Manual Start and StopThe purge can be started or stopped manually.

1. Navigate to the Setting screen on the Control Panel.

LD20138



7

TABLE 37 - LIFESPAN OF COMMON PARTS

DESCRIPTION APPLICABLE MODELS OR SECTIONS

LIFESPAN OF COMMON PARTS

Gasket CHW Water Box every 2 years Gasket CW Water Box every 1 year Gasket, O-Ring, Diaphragm every 24,000 hrs Evaporator Tube

About 15 years Depends on the eddy current result at interval 24,000 - 30,000 hrs.

Absorber Tube Condenser Tube HT-G Tube LT-G Tube about 15 yearsGasket HT-G Channel Box every 2 years Main Circuit Board

every 30,000 hrs

Relay MY-2N, MY-4N Timer H3Y-2 Fuse Power Unit RWS series Magnet Switch, Thermal Relay HK series Battery for main circuit board CR2032 every 3 yearsBattery for touch panel PFXZCBBT1 every 5 yearsTouch Panel GP4000 series

every 30,000 hrsInverter (Option) D700 series Temperature Controller SDC series Fan for Control Panel Burner Controller

Flame Detector every 15,000 hrs

Gas Pressure Switch

every 30,000 hrs, Only Gas, Dual BurnerPilot Solenoid Valve

Pilot Governor

Pressure Gauge

every 30,000 hrs


Air Pressure Switch

Control Motor

Spark Rod

High Voltage Code

Main Shut-Off Gas Valve every 30,000 hrs, Only Gas, Dual Burner

Burner Fan Motor every 30,000 hrs

Oil Pump Motor

every 30,000 hrs, Only Gas, Dual BurnerOil Pump

Oil Solenoid Valve

Oil Pressure Switch

JOHNSON CONTROLS156


DESCRIPTION APPLICABLE MODELS OR SECTIONS

LIFESPAN OF COMMON PARTS

Differential Pressure Switch YPS-C104Q/ 69WC1(69WC2)

every 30,000 hrs

Pressure Switch 63SH1 (69AP1)(69AP2) Pressure Sensor PA-830-102A-10 Resistance Temp. Sensor Pt100 Ω Thermocouple Float Switch Ref. tank Exhaust Gas Temp. Switch Ew-3Electrode (HG Sol Level Sensing)Bearing for Sol. Circulation Pump every 20,000 hrsSol. Circulation Pump every 60,000 hrsBearing for Sol. Spray Pump every 20,000 hrsSol. Spray Pump every 60,000 hrsBearing For Refrigerant Pump every 20,000 hrsRefrigerant Pump

every 60,000 hrsVacuum Pump Pump Shut Off Valve (Option)

every 48,000 hrsPressure Release Valve Purge Solenoid Valve AB41

every 30,000 hrsRefrigerant Blow Solenoid Valve AB41 Float Valve For HG float box

every 60,000 hrs Float Valve For refrigerant tankThree-Way Valve (Option) For residential hot water lineCompound Gauge

every 48,000 hrsVacuum Gauge Rubber Hose Set For Purge Line every 18,000 hrsOil For Purge Pump ULVAC R-7 every 3,000 hrs

WATER QUALITY CONTROLUse the following guidelines to be sure of the highest water quality control standards:

• Limit the water pressure to the maximum safe working pressure for chilled/hot and cooling wa-ter.

• Install a 10-20 or finer mesh strainer in the chilled/hot and cooling water piping.

• Install a thermometer and a pressure gauge in the inlet and the outlet of the chilled/hot and cooling water piping.

• Install tapping (with valve) for chemical cleaning of the inlet and the outlet of the chilled/hot and cooling water piping.

• Install an air vent valve at the highest part of the piping and a drain valve at the lowest part of the piping.

TABLE 37 - LIFESPAN OF COMMON PARTS (CONT'D)

• Replace the water regularly and control the wa-ter quality. Operating the chiller-heater for long periods of time with low quality water will cause corrosion and the production of scale.

• Make sure the shut off valves installed at the chill-er-heater inlet of the chilled/hot, and cooling wa-ter are completely open.

If the chiller-heater runs without the valves completely open, a strong turbulent flow can be generated. The turbulence may cause damage in the water chamber case and the copper tube of the chiller-heater. If you need to adjust the flow rate of the chilled/hot and the cooling water, be sure to adjust the valves installed at the outlet side of the chiller-heater.

• Install an expansion tank on the hot water line if the hot water is a closed system.



7

CHEMICAL WATER TREATMENTSince the mineral content of the water circulated through the evaporator, condenser, and absorbers var-ies, the water used may corrode the tubes or deposit heat resistant scale in them.

Perform a chemical analysis of the water before the system is installed. Consult a reliable water treatment company to determine if treatment is necessary. If it is, the company can provide treatment for the water to help prevent damage to the tubes.

REPLACEMENT OF WATER Since the cooling water system can be polluted by vari-ous factors, it must be cleaned and the water it in must be replaced periodically. Generally, if the water is not treated at all by the cooling tower, the recommended interval to replace the cooling water is:

• District polluted with sulfurous acid gas --- 5 days

• Common district --- 10 days

If the water is blown manually or automatically, the replacement period may be lengthened as follows.

• District polluted with sulfurous acid gas --- 1 month

• Common district --- 1 month

TREATMENT FOR LONG STOPPAGE OF THE ABSORPTION CHILLER-HEATERIf the absorption chiller-heater is stopped for a long time, bacteria in the water or in the tubes may grow. The bacteria can corrode the tubes. When stopping the chiller-heater for more than 15 days, drain the water from the absorber, condenser, and evaporator through the drain valve at the bottom of the waterbox.

CHEMICAL TREATMENT Corrosion inhibitors are attracted chemically to the metal surfaces when the latter are corroded or they form inert protective compounds over the metal sur-faces. For effective use of the corrosion inhibitors, types of them must be selected and their concentration must be determined according to the conditions of the chiller-heater system. In those conditions, water qual-ity, temperature, flow speed, metals used, existence of crevices and deposits and type of water system must be included. For the complete corrosion preventive mea-sure, consult a water treatment company.

FLOW SPEED IN TUBES Since the water flow speed in the tubes is closely re-lated to any existing corrosion, do not increase the wa-ter supply rate more than recommended. If the flow speed reaches 3.5 to 4 meters per second, the tubes may erode. When changing the flow rate, contact your local Johnson Controls Service Center.

If the water supply rate is adjusted at the inlet side of the heat exchanger (evaporator, condenser, and absorb-er), the eddy current at the inlet may corrode the tube.

Be sure to control the flow rate on the outlet side.

The eddy current caused by foreign matter in the heat exchanger is also a factor in corrosion. Be sure to in-stall a strainer on the inlet side of the heat exchanger and clean the strainer periodically.

JOHNSON CONTROLS158


TABLE 38 - TENDENCY OF GENERATION OF SCALES AND CORROSION BY QUALITY OF COOLING WATER

QUALITY OF COOLING WATER

GENERAL TENDENCY SCALE AND ITS COLOR CORROSION AND ITS COLOR

Factors of Water Quality

Water of low PH number Hard scales are generated and iron bacteria propagate.

Bad corrosion of iron and copper.

Dark brown ~ Pale greenish blue

Water of high PH number Calcium carbonate scales are generated easily.

Pale yellow

Water contains many calcium ions (Ca2+) and magnesium ions(Mg2+)

Sulfuric ion SO42-, silica SiO2

and 2 carbonate ion CO32-

combine together to generate hard scales.

Pale yellow

Water contains many chlorine ion (Cl-)

Iron and copper tubes are corroded badly.

Water contains many sulfuric ions (SO4

2-) and silica (SiO2)

Calcium sulfide (CaSO4) and calcium silicate (CaSiO3) combine together to generate hard scales.

Gray SO4

2- corrodes copper tubes badly.

Greenish Blue

Water contains many iron (Ferrous ion (Fe2+),ferric ion (Fe3+))

Fe3+ becomes ferric hydroxide (Fe(OH)3) to make red water and sets red rust of ferric dioxide (Fe2O3). Iron bacteria propagate remarkably.

Reddish brown-Black

Fe3+ corrodes iron and copper tubes.

Reddish brown-Black

Environmental Factors

Water smells bad (Contains compounds of sulfur, hydrogen sulfide (H2S), ammonium ion (NH4+), methane, and other gases)

Scales are generated easily, and slime is generated.

Greenish Blue – Dark brown

H2S and NH4+ corrodes

copper tubes badly.

Black – Greenish blue

Water contains organic matters (High COD and BOD)

Scales are generated easily, and slime is generated.

Exhaust gases (Sulfurous acid gas (SO2), nitrogen oxide (NO2), hydrogen chloride (HCl), ammonia (NH3), and other gases) mixed in water in cooling tower

If organic nitrogen and inorganic nitrogen are contained, algae propagate. SO2 becomes SO4

2- and combines with Ca2+ and Mg2+ to generate scales.

Algae: Green Pale yellow

Exhaust gas from automobiles, factories, sewage plants, ammonia refrigerating machine, and other environmental hazards, lower or heighten PH number. As SO4

2-, Cl- and NH4+

are increased, tubes are corroded and pitted very quickly.

Solid matter (Mud, sand, fibers, dust, insects, and so on) in water in cooling tower

Scales are generated easily. Solid matters set. Slime is generated.

Sea wind (District by sea) Scales are generated easily. Tubes are corroded badly.

Reddish brown-Black



7

TABLE 39 - CHILLED/HOT AND COOLING WATER QUALITY CONTROL (MAXIMUM CONCENTRATIONS)

ELEMENT (1) (6)

COOLING WATER SYSTEM(4)

CHILLED/HOT WATER SYSTEM TENDENCY(2)CIRCULATING

TYPE

NON- CIRCULATING

WATER

CIRCULATING WATER

REPLENISH WATER

PASSING WATER

CIRCULATING WATER

(20°C OR LOWER)

REPLENISH WATER

CO

RR

OSI

ON

SCA

LE

FOR

MIN

G

STA

ND

AR

D IT

EMS

pH (25°C) 6.5~8.2 6.0~8.0 6.8~8.0 6.8~8.0 6.8~8.0Electric Conductivity (mS/m) (25°C)(µS/cm) (25°C)(1)

Max. 80 (Max. 800)

Max. 30 (Max. 300)

Max. 40 (Max. 400)

Max. 40 (Max. 400)

Max. 30 (Max. 300)

Chloride Ion (mgClˉ/l)

Max. 200 Max. 50 Max. 50 Max. 50 Max. 50

Sulfulic Acid Ion (mgSO4

2ˉ/I)Max. 200 Max. 50 Max. 50 Max. 50 Max. 50

Acid Consumption (PH4.8) (mgCaCO3/I)


Total Hardness (mgCaCO3/I)


Calcium Hardness (mgCaCO3/I)


Ionized Silica (mgSiO3/I)


REF

EREN

CE

ITEM

S

Iron (mgFe/I) Max. 1.0 Max. 0.3 Max. 1.0 Max. 1.0 Max. 0.3

Copper (mgCu/I) Max. 0.3 Max. 0.1 Max. 0.1 Max. 0.1 Max. 0.1Sulfurization Ion (mgS2ˉ/I)

NO IONS ALLOWED

Ammonium Ion (mgNH4+/I)

Max. 1.0 Max. 0.1 Max. 1.0 Max. 1.0 Max. 0.1

Residual Chlorine (mgCI/I)


Free Carbonate Acid (mgCO2/I)


Stability Index 6.0~7.0 – – – –

NOTES: 1. The item names, their definitions, and units are based on JIS K 0101. Units and figures in braces are those which were used formerly. They

are shown here for reference purposes.2. In the "Tendency" column, a white circle ( ) indicates that a particular item is a factor in corrosion/scale formation.3. Generally speaking, when the water temperature is high (40°C or higher), corrosion develops noticeably. Especially when steel material

which makes direct contact with water has no protective covering, it is desirable to provide a suitable corrosion-preventive measure, such as adding a corrosion-preventive agent or applying deaeration treatment.

4. In a cooling water system using a closed cooling tower, the closed-circuit circulating water and its replenishment water shall meet the quality standards for a hot water system, and the sprinkling water and its replenishment water shall meet the quality standards for a circulation-type cooling water system.

5. The supply water and replenishment water shall be tap water, industrial water, or ground water. Do NOT use demineralized water, neutral water, and softened water.

6. The items shown above are representative factors in corrosion and scale formation.

JOHNSON CONTROLS160


LD20185

①

②

③

④

Control Panel

P

P

P

T

TT

T

M

Power Supply/Instrumenta-tion (for remote monitoring)

Telephone line

Drain from Chiller-Heater,Purge, and Safety Valve

Drainage Equipment

Drain Vent

Circulating Header

Replenishment Water

Expansion Tank

Chilled / Hot Water Pump

Install the pump at the high pressure side of the absorption chiller heater

Cooling Tower

Blow Valve

Replenishm

ent Water

Cooling Water Pump

Outside Scope of Delivery Three-Way Valve

Tapping for Chemical Cleaning

Flue Gas

High Temperature Generator

Absorption Chiller-Heater

Flow Meter

Within Scope of DeliveryOutside Scope of Delivery

Fuel

Tapping for Chemical Cleaning Air Vent

FIGURE 66 - CHILLED/HOT WATER AND COOLING WATER SYSTEM

STORAGE METHOD OF THE CHILLER-HEATERIf the chiller-heater needs to be stored long-term, the storage method varies. A lot depends on the machine room temperature condition and the storage period. If the machine room temperature is below 0°C, drain off the chilled/hot, and cooling water. Dry the tube interi-ors. Make sure all equipment is completely dry.

Nitrogen gas pressurization inside the absorption chill-er-heater is required when the storage period exceeds 6 months. Contact your local Johnson Controls Service Center for more details.

The chiller-heater is not explosion proof. Highly flammable items, gas, or liquids should not be handled or stored near the chiller-heater. Failure to do this may result in explosion, injury, or damage to the equipment and/or building.

There are two storage methods available for the chiller -heater during off-season (winter) or plant suspension; the wet storage method and the dry storage method. (The wet storage method is available only where heat source water and hot water will not freeze.)

Each storage method has its own characteristics. Select the method to use based on the plant’s features and the storage period. Details follow.

Wet Storage MethodThe wet storage method may be used when there is no concern about water freezing in winter. Store the ma-chine in a place where the ambient temperature will remain higher than 0°C.

If it is likely that the temperature will drop below that, provide a heater for the machine. If a heater is not pos-sible, contact your local Johnson Controls service cen-ter for further information. For details on the wet stor-age method, see Table 36 on page 151.



7

The dry storage procedure is as follows if either the chilled/hot line or the cooling water line is an open sys-tem:

1. Completely drain the water.

2. Clean the water systems by passing clear water through them from a position higher than the chiller-heater.

3. Fill the water systems with clear water.

4. Circulate the clear water through the water pump for 30 minutes to one hour to clean it.

5. Drain the water from each waterbox.

6. Dry the interior of each waterbox and the heat transfer tube.

7. Store the machine.

PRECAUTIONS AGAINST EXTERNAL DAMAGEAvoid storing the machine in a place that is easily ac-cessible or near a construction site. If this is unavoid-able, provide the machine with protection.

If it is not possible to protect the machine, fill the in-terior with N2 to minimize the amount of air leakage. For details, contact your local Johnson Controls ser-vice center.

The wet storage procedure is as follows if either chilled/hot line or the cooling water line is an open system:

1. Completely drain the water from the systems if it has deteriorated in quality.

2. Clean the water systems by passing clear water through them from a position higher than the chiller-heater.

3. Fill the water systems with clear water.

4. Circulate the clear water through the water pump for 30 minutes to one hour to clean it.

5. Drain the water.

6. Completely fill the water systems with clear water again.

7. Store the machine.

Dry Storage MethodThe dry storage method should be used if the chilled/hot water system or the cooling water system may freeze in the winter or, if the water system has a lining tube.

Do not simply drain the chilled/hot, and the cooling water and store the machine. This significantly increases the possibil-ity of corrosion of the heat transfer tube and rust.

JOHNSON CONTROLS162


TABLE 40 - WET STORAGE METHODPART STORAGE METHOD NOTES

Storage Period; less than 2 months

Chilled/hot water line Filled with water

1. The manual valve on the purge piping should be fully closed See Figure 57 on page 137.

2. If the storage period exceeds 2 months, algae and bacteria may propagate and corrode the tubes depending on the water quality, chemicals should be fed to avoid such propagation.

3. If the storage period exceeds 2 months, water inside the chiller-heater should be replaced. If the same water remains in the chiller-heater for longer than 2 months, bacteria may propagate and corrode the tubes depending on the environmental condition and water quality. Hence, the chilled/hot water and cool-ing water pumps should be operated for a short time periodically and the water inside chiller-heater should be replaced completely (at least once a month).

4. If the storage period exceeds 6 months, apply pres-sure 0.01~0.02 Mpa with nitrogen inside the shells and leave as is. Internal-pressure should be checked at least once a week to confirm that no pressure drop occurs.

Cooling water line Inside of shells Vacuum

Storage Period; more than 2 months and less than 6 months

Chilled/hot water system Filled with water

Cooling water system Inside of shells Vacuum

Storage Period; more than 6 months

Chilled/hot water system Filled with water

Cooling water system

Inside of shells Pressurized with Nitrogen

(0.01~0.02 MpaG)

TABLE 41 - DRY STORAGE METHODPART STORAGE METHOD NOTES

Storage Period; less than 6 months

Chilled/hot water system Dried and pressurized with

Nitrogen (0.01~0.02 MpaG)

1. Chilled/hot water and cooling water systems should be drained completely and dried by nitrogen blow, then pressurized with nitrogen and left as is. Depending on the water quality, hard scale may be fixed on the inside surface of tubes by drying and it can be removed only by chemical cleaning. For more than 1 year’s storage, it is necessary to, after cleaning the tubes, drain completely, dry up inside by nitrogen blow, then pressurize with nitrogen and leave as is.

2. If the storage period exceeds 6 months, apply pressure 0.01~0.02 Mpa with nitrogen inside the shells and leave as is. Internal-pressure should be checked at least once a week to confirm no pressure drop occurs.

3. The manual valve on the purge piping should be fully closed (See Figure 57 on page 137 and Figure 58 on page 138 .

Cooling water system Inside of shells Vacuum

Storage Period; more than 6 months

Chilled/hot water system

Dried and pressurized with Nitrogen (0.01~0.02 MpaG)

Cooling water system Inside of shells Pressurized with Nitrogen

(0.01~0.02 MpaG)



7

STORAGE METHOD OF THE COOLING WATER DURING HEATING OPERATION PERIODDo NOT operate the cooling water pump during op-eration in heating mode, simultaneous heating and residential hot water supply mode, and residential hot water only (sole) supply mode.

Treat the cooling water in the Absorber and Condenser tubes during the heating operation using one of the fol-lowing two methods.

Wet StorageThis method of storage leaves water in the tubes. It is applicable to indoor installations.

Condition around the chiller-heater:

1. During the heating operation period, there is no concern about the cooling water freezing. (In case there is concern of freezing, apply an insulation material to the cooling water piping.

2. The cooling tower is installed at the high level (height) of the chiller-heater. to prevent the high temperature water from flowing into the cooling tower.)

3. Lining pipe is not used for the cooling water pip-ing system. If you use the lining pipe, use a heat -resistant lining pipe.

To avoid risk of corrosion, do NOT leave any poor quality cooling water in the ab-sorber and condenser tubes.

Cooling water temperature can rise up to approximately 80 °C due to the residual heat during heating operation. Be careful of burns when handling the water drain valves or other hot surfaces.

With the increased cooling water tem-perature, the volume of the cooling water expands. Therefore, be sure to slightly open the valve at the cooling water outlet side of the chiller-heater.

JOHNSON CONTROLS164


LD20942

Start/stop signal for cooling tower fan

Cooling Tower

Open/close signal for three way valve

Thermometer

Chiller-HeaterThermometer

Strainer Close

Cooling water pump

Filled with water

PTT

Close Drain valve

Close Drain valve

Open slightly

FIGURE 67 - WET STORAGE DURING HEATING OPERATION PERIOD

Work Procedure1. If the quality of the remaining cooling water is

deteriorated, drain all the cooling water from the absorber and the condenser.

2. Flow clean water from a higher location than the chiller-heater. Then feed the clean water continu-ously and clean the tubes well.

3. Fill the absorber and the condenser with clean wa-ter.

4. Circulate the clean water with the cooling water pump for 30 min. to 1 hour.

5. Drain all of the cooling water from the Absorber and Condenser.

6. Fill the absorber and condenser with clean water.

7. Keep this condition during heating operation pe-riod.

Dry StorageDry storage involves draining the water from the tubes. It is most often used when the unit is installed in an outdoor location.

Condition around the chiller-heater:

• During the heating operation period, there is con-cern of cooling water freezing.

• Cooling tower is installed at the same level (height) of the chiller-heater.

• Lining pipe is used for the cooling water piping system.

Do NOT leave the tubes in absorber and condenser as is after simply draining the remained cooling water. If you do, the heat transfer tubes will be at high risk of corro-sion and rusty water (red rust) generation.



7

LD21006

Start/stop signal for cooling tower fan

Cooling Tower

Open/close signal for three way valve

Thermometer

Chiller-HeaterThermometer

Strainer Close

Cooling water pump

Water drained

PTT

Open Drain valve

Open Drain valve

Close

FIGURE 68 - DRY STORAGE DURING HEATING OPERATION PERIOD

Work Procedure1. Drain all of the cooling water from the absorber

and the condenser.

2. Flow the clean water from the higher location than the chiller-heater, and then feed the clean water continuously and clean the tubes well.

3. Fill absorber and condenser with clean water.

4. Circulate it with the cooling water pump for 30 minutes to 1 hour.

5. Drain all of the cooling water from the absorber and the condenser.

6. Dry inside of each water chamber and heat trans-fer tube well.

7. Keep this condition during heating operation pe-riod.

JOHNSON CONTROLS166


LD14221a

SATURATION PRESSURE m

m HgREFR

IGERANT

TEMPERATU

RE F

20 15 10 8 6 4.2

100

9080

70

60

50

40

30

995.

5

900

800

700

600

500

400

300

200

150

SOLU

TIO

N T

EMPE

RA

TUR

EF

70

80

60 50 40 3040

5060

7080

9010

010

011

012

013

014

015

016

017

018

019

020

021

022

023

024

025

026

027

028

029

030

031

032

033

034

035

0200

190

180

170

160

150

140

130

120

110

100

90 80 70 60 50 40 30220

210

90

100

110

120

130

140

150

160

170

180

190

200

210

220

CR

YSTA

LLIZ

ATI

ON

AR

EA65

%60

%55

%50

%45

%40

%

40%

45%

50%

55%

60%

65%

70%

200

200

210

210

220

220

230

230

240

240

250

250

260

260

270

270

280

280

290

290

300

300

310

310

320

320

330

330

340

340

350

350

Düh

ring

Dia

gram

/ PT

X C

hart

Abs

orpt

ion

Liqu

id C

hille

rs

Use

ful C

onve

rsio

n Fo

rmul

asTo

Con

vert

ºC (C

entig

rade

) to

ºF (F

ahre

nhei

t) or

ºF to

ºC:

ºC =

ºF

+40

1.8

-40

ºF =

(ºC

+ 4

0) x

1.8

- 40

1 at

m (a

tmos

pher

e at

sea

leve

l) =

14.6

96 p

sia

= 0

psig

= 7

60 m

mH

G =

29.

92 in

Hg

1 m

m H

g =

1000

mic

rons

= 0

.393

7 in

ch H

g =

.019

34 p

si1

in H

g =

25.4

mm

Hg

= .4

91 p

si1

psi =

2.0

36 in

Hg

= 51

.7 m

m H

g =

2.31

ft H

2O1

ft H

2O =

.433

psi

1 lb

= .4

536

Kg

= 45

3.6

gms

1 lit

er =

.264

1 U

.S. g

al =

1.0

57 U

.S. q

uarts

1 U

.S. g

allo

n =

3.78

5 lit

ers

1 in

ch =

25.

4 m

m1

ton

refri

gera

tion

(12,

000

btu/

hr) =

3.5

2 kW

FIGURE 69 - DUHRING DIAGRAM / PTX CHART (°F)



8

FIGURE 70 - DUHRING DIAGRAM / PTX CHART (°C)

10.0

15.6

21.1

26.7

32.2

37.8

43.3

48.9

54.4

60.0

65.6

71.1

76.7

Use

ful

Con

vers

ion

Form

ulas

To c

onve

rt °C

(Cen

tigra

de) t

o °F

(Fah

renh

eit)

or °F

to °C

:

°C=

°F +

40

–40

°F =

(°C

+ 40

) x 1

.8 –

40

1.8

1 at

m (a

tmos

pher

e at

sea

leve

l) =

14.6

96 p

sia

= 0

psig

= 7

60 m

mH

g =

29.9

2 in

Hg

1 m

m H

g =

1000

mic

rons

= 0

.393

7 in

ch H

g =

.019

34 p

si

1 in

Hg

= 25

.4 m

m H

g =

.491

psi

1 ps

i = 2

.036

in H

g =

51.7

mm

Hg

= 2.

31 ft

H2O

1 ft

H2O

= .4

33 p

si

1 lb

= .4

536

Kg

= 45

3.6

gms

1 lit

er =

.264

1 U

.S. g

al =

1.0

57 U

.S. q

uarts

1 U

.S. g

allo

n =

3.78

5 lit

ers

1 in

ch =

25.

4 m

m

1 to

n re

frige

ratio

n (1

2,00

0 B

tu/h

r) =

3.5

2 kW

Abs

orpt

ion

Liqu

id

Chi

llers

Duh

ring

Dia

gram

/PTX

Cha

rt

4.4

82.2

87.8

93.3

98.9

104.

411

0.0

115.

612

1.1

126.

713

2.2

137.

814

3.3

148.

915

4.4

160.

0

165.

617

1.1

176.

7-1

.1

4.4

10.0

15.6

21.1

26.7

32.2

37.8

43.3

48.9

54.4

60.0

65.6

71.1

76.7

82.2

87.8

93.3

98.9

104.

4

0.6

0.8

1.1

1.3

2.0

4.0

5.3

6.7

8.0

9.310

.712.013

.3

20.0

26.7

40.0

53.3

66.6

80.0

93.310

6.612

0.013

2.7

2.7

SOLU

TIO

N T

EMPE

RAT

UR

E °C

CRY

STA

LLIZ

ATIO

N A

REA

SATURATION PRESSURE kP

a

REFRIGERANT TEMPERATURE °C

93.3

98.9

104.

411

0.0

115.

612

1.1

126.

713

2.2

137.

814

3.3

148.

915

4.4

160.

0

165.

617

1.1

176.

7

40%

45%

50%

55%

60%

65%

40%

45%

50%

55%

60%

65%

70%

JOHNSON CONTROLS168


FIGURE 71 - SPECIFIC GRAVITY - CONCENTRATION (°F)LD14222

6 65.70 65.85 66.00 66.14 66.2866.09 66.24 66.38 66.52 66.6766.47 66.61 66.76 66.90 67.0466.84 66.98 67.13 67.27 67.41

6 67.20 67.35 67.49 67.63 67.7767.56 67.70 67.84 67.98 68.12

S.G. 40 45 50 55 60 65 70 75 80 85 90 95 1001.00 –– –– –– –– –– –– 0.08 0.18 0.28 0.37 0.47 0.57 0.671.01 0.98 1.08 1.17 1.27 1.37 1.47 1.56 1.66 1.76 1.85 1.95 2.05 2.151.02 2.43 2.52 2.62 2.72 2.82 2.91 3.01 3.11 3.20 3.30 3.40 3.50 3.591.03 3.84 3.94 4.03 4.13 4.23 4.33 4.42 4.52 4.62 4.72 4.81 4.91 5.011.04 5.22 5.32 5.42 5.51 5.61 5.71 5.81 5.90 6.00 6.10 6.19 6.29 6.391.05 6.57 6.67 6.77 6.87 6.96 7.06 7.16 7.26 7.35 7.45 7.55 7.64 7.74

S.G 60 70 80 90 100 110 120 130 140 150 160 170 1801.350 37.27 37.5 37.75 37.98 38.21 38.44 38.67 38.90 39.13 39.35 39.58 39.80 40.021.360 38.03 38.26 38.50 38.73 38.96 39.19 39.42 39.64 39.87 40.09 40.31 40.53 40.751.370 38.78 39.01 39.24 39.47 39.70 39.93 40.15 40.38 40.60 40.82 41.04 41.26 41.481.380 39.52 39.75 39.98 40.20 40.43 40.66 40.88 41.10 41.32 41.54 41.76 41.98 42.201.390 40.25 40.48 40.70 40.93 41.16 41.38 41.60 41.82 42.04 42.26 42.48 42.69 42.901.400 40.97 41.20 41.42 41.65 41.87 42.09 42.31 42.53 42.75 42.97 43.18 43.39 43.611.410 41.69 41.91 42.14 42.36 42.58 42.80 43.02 43.24 43.45 43.67 43.88 44.09 44.301.420 42.39 42.62 42.84 43.06 43.28 43.50 43.72 43.93 44.15 44.36 44.57 44.78 44.991.430 43.10 43.32 43.54 43.76 43.98 44.19 44.41 44.62 44.83 45.04 45.25 45.46 45.671.440 43.79 44.01 44.23 44.45 44.66 44.88 45.09 45.30 45.51 45.72 45.93 46.13 46.341.450 44.47 44.69 44.91 45.13 45.34 45.55 45.76 45.97 46.18 46.39 46.59 46.80 47.001.460 45.15 45.37 45.58 45.80 46.01 46.22 46.43 46.6 446.85 47.05 47.25 47.46 47.661.470 45.82 46.03 46.25 46.46 46.67 46.88 47.09 47.30 47.50 47.70 47.91 48.11 48.301.480 46.48 46.69 46.91 47.12 47.33 47.54 47.74 47.95 48.15 48.35 48.55 48.75 48.941.490 47.13 47.35 47.56 47.77 47.97 48.18 48.38 48.59 48.79 48.99 49.19 49.38 49.581.500 47.78 47.99 48.20 48.41 48.61 48.82 49.02 49.22 49.42 49.62 49.82 50.01 50.201.510 48.42 48.63 48.84 49.04 49.25 49.45 49.65 49.85 50.05 50.24 50.44 50.63 50.821.520 49.05 49.26 49.46 49.67 49.87 50.07 50.27 50.47 50.66 50.86 51.05 51.24 51.431.530 49.67 49.88 50.08 50.28 50.49 50.68 50.88 51.08 51.27 51.46 51.66 51.84 52.031.540 50.29 50.49 50.69 50.89 51.09 51.29 51.49 51.68 51.87 52.06 52.25 52.44 52.631.550 50.89 51.10 51.30 51.50 51.69 51.89 52.08 52.28 52.47 52.66 52.84 53.03 53.211.560 51.49 51.69 51.89 52.09 52.29 52.48 52.67 52.86 53.05 53.24 53.43 53.61 53.791.570 52.09 52.28 52.48 52.68 52.87 53.06 53.25 53.44 53.6 353.82 54.00 54.18 54.371.580 52.67 52.87 53.06 53.26 53.45 53.64 53.83 54.02 54.20 54.39 54.57 54.75 54.931.590 53.25 53.44 53.64 53.83 54.02 54.21 54.39 54.58 54.77 54.95 55.13 55.31 55.491.600 53.81 54.01 54.20 54.39 54.58 54.77 54.95 55.14 55.32 55.50 55.68 55.86 56.041.610 54.37 54.57 54.76 54.95 55.13 55.32 55.50 55.69 55.87 56.05 56.23 56.40 56.581.620 54.93 55.12 55.31 55.49 55.68 55.86 56.05 56.23 56.41 56.59 56.76 56.94 57.111.630 55.47 55.66 55.85 56.03 56.22 56.40 56.58 56.76 56.94 57.12 57.29 57.46 57.641.640 56.01 56.20 56.38 56.57 56.75 56.93 57.11 57.29 57.46 57.64 57.81 57.98 58.151.650 56.54 56.72 56.91 57.09 57.27 57.45 57.63 57.81 57.98 58.15 58.33 58.50 58.671.660 57.06 57.25 57.43 57.61 57.79 57.97 58.14 58.32 58.49 58.66 58.83 59.00 59.171.670 57.58 57.76 57.94 58.12 58.29 58.47 58.65 58.82 58.99 59.16 59.33 59.50 59.661.680 58.08 58.26 58.44 58.62 58.79 58.97 59.14 59.31 59.48 59.65 59.82 59.99 60.151.690 58.58 58.76 58.94 59.11 59.29 59.46 59.63 59.80 59.97 60.14 60.30 60.47 60.631.700 59.07 59.25 59.42 59.60 59.77 59.94 60.11 60.28 60.45 60.61 60.78 60.94 61.101.710 59.55 59.73 59.90 60.08 60.25 60.42 60.59 60.75 60.92 61.08 61.25 61.41 61.571.720 60.20 60.38 60.55 60.72 60.88 61.05 61.22 61.38 61.54 61.71 61.87 62.031.730 60.67 60.84 61.01 61.18 61.34 61.51 61.67 61.84 62.00 62.16 62.32 62.481.740 61.13 61.30 61.46 61.63 61.80 61.96 62.12 62.28 62.44 62.60 62.76 62.921.750 61.74 61.91 62.08 62.24 62.40 62.56 62.72 62.88 63.04 63.20 63.351.760 62.35 62.51 62.68 62.84 63.00 63.16 63.31 63.47 63.62 63.781.770 62.78 62.94 63.10 63.26 63.42 63.58 63.74 63.89 64.04 64.201.780 63.37 63.52 63.68 63.84 64.00 64.15 64.30 64.46 64.611.790 63.78 63.94 64.09 64.25 64.40 64.56 64.71 64.86 65.011.800 64.34 64.50 64.65 64.81 64.96 65.11 65.26 65.411.810 64.89 65.05 65.20 65.35 65.50 65.65 65.801.820 65.43 65.58 65.73 65.88 66.03 66.181.830 65.96 66.11 66.26 66.41 66.551.840 66.48 66.63 66.77 66.921.850 66.99 67.13 67.27

190 200 210 220 230 240 40.24 40.46 40.68 40.90 41.11 41.33 40.97 41.19 41.41 41.62 41.83 42.0541.69 41.91 42.12 42.34 42.55 42.7642.41 42.62 42.83 43.04 43.25 43.4643.12 43.33 43.54 43.75 43.95 44.1643.82 44.03 44.23 44.44 44.64 44.85 44.51 44.72 44.92 45.12 45.33 45.5345.19 45.40 45.60 45.80 46.00 46.2045.87 46.07 46.27 46.47 46.67 46.8746.54 46.74 46.94 47.14 47.33 47.5347.20 47.40 47.60 47.79 47.99 48.18 47.85 48.05 48.25 48.44 48.63 48.8248.50 48.70 48.89 49.08 49.27 49.4649.14 49.33 49.52 49.71 49.90 50.0949.77 49.96 50.15 50.34 50.53 50.7150.39 50.58 50.77 50.96 51.14 51.3351.01 51.20 51.38 51.57 51.75 51.93 51.62 51.80 51.99 52.17 52.35 52.5352.22 52.40 52.59 52.77 52.95 53.1252.81 52.99 53.18 53.36 53.53 53.7153.40 53.58 53.76 53.94 54.11 54.2953.97 54.15 54.33 54.51 54.68 54.8654.55 54.72 54.90 55.07 55.25 55.42 55.11 55.28 55.46 55.63 55.80 55.9755.66 55.84 56.01 56.18 56.35 56.5256.21 56.38 56.55 56.72 56.89 57.0656.75 56.92 57.09 57.26 57.43 57.5957.28 57.45 57.62 57.79 57.95 58.1257.81 57.97 58.14 58.31 58.47 58.6358.32 58.49 58.66 58.82 58.98 59.1458.83 59.00 59.16 59.32 59.49 59.6559.33 59.50 59.66 59.82 59.98 60.1459.83 59.99 60.15 60.31 60.47 60.6360.31 60.48 60.64 60.79 60.95 61.1160.79 60.95 61.11 61.27 61.43 61.5861.26 61.42 61.58 61.74 61.89 62.0561.73 61.89 62.04 62.20 62.35 62.5062.18 62.34 62.50 62.65 62.80 62.9562.63 62.79 62.94 63.09 63.25 63.4063.07 63.23 63.38 63.53 63.68 63.8363.51 63.66 63.81 63.96 64.11 64.2663.93 64.08 64.23 64.38 64.53 64.6864.35 64.50 64.65 64.80 64.95 65.0964.76 64.91 65.06 65.21 65.35 65.5065.16 65.31 65.46 65.60 65.75 65.8965.565.94 66.32 66.70 67.067.42

CRYSTALLIZATION AREA

SPECIFIC GRAVITY – CONCENTRATION TABLES AQUEOUS LiBr SOLUTIONS

Refrigerant Table (%LiBr by Weight) Temperature °CF

Solution Tables Temperature °C



8

FIGURE 72 - SPECIFIC GRAVITY - CONCENTRATION (°C)LD20921b

SPECIFIC GRAVITY – CONCENTRATION TABLES AQUEOUS LiBr SOLUTIONS

Refrigerant Table (%LiBr by Weight) Temperature °C

S.G. 4.4 7.2 10.0 12.8 15.6 18.3 21.1 23.9 26.7 29.4 32.2 35.0 37.8 1.00 0.08 0.18 0.28 0.37 0.47 0.57 0.67 1.01 0.98 1.08 1.17 1.27 1.37 1.47 1.56 1.66 1.76 1.85 1.95 2.05 2.15 1.02 2.43 2.52 2.62 2.72 2.82 2.91 3.01 3.11 3.2 3.3 3.4 3.5 3.59 1.03 3.84 3.94 4.03 4.13 4.23 4.33 4.42 4.52 4.62 4.72 4.81 4.91 5.01 1.04 5.22 5.32 5.42 5.51 5.61 5.71 5.81 5.9 6 6.1 6.19 6.29 6.39 1.05 6.57 6.67 6.77 6.87 6.96 7.06 7.16 7.26 7.35 7.45 7.55 7.64 7.74

Solution Tables Temperature °C

S.G. 15.6 21.1 26.7 32.2 37.8 43.3 48.9 54.4 60.0 65.6 71.1 76.7 82.2 87.8 93.3 98.9 104.4 110.0 115.6 1.35 37.27 37.50 37.75 37.98 38.21 38.44 38.67 38.90 39.13 39.35 39.58 39.80 40.02 40.24 40.46 40.68 40.90 41.11 41.33 1.36 38.03 38.26 38.50 38.73 38.96 39.19 39.42 39.64 39.87 40.09 40.31 40.53 40.75 40.97 41.19 41.41 41.62 41.83 42.05 1.37 38.78 39.01 39.24 39.47 39.70 39.93 40.15 40.38 40.60 40.82 41.04 41.26 41.48 41.69 41.91 42.12 42.34 42.55 42.76 1.38 39.52 39.75 39.98 40.20 40.43 40.66 40.88 41.10 41.32 41.54 41.76 41.98 42.20 42.41 42.62 42.83 43.04 43.25 43.46 1.39 40.25 40.48 40.70 40.93 41.16 41.38 41.60 41.82 42.04 42.26 42.48 42.69 42.90 43.12 43.33 43.54 43.75 43.95 44.16 1.40 40.97 41.20 41.42 41.65 41.87 42.09 42.31 42.53 42.75 42.97 43.18 43.39 43.61 43.82 44.03 44.23 44.44 44.64 44.85 1.41 41.69 41.91 42.14 42.36 42.58 42.80 43.02 43.24 43.45 43.67 43.88 44.09 44.30 44.51 44.72 44.92 45.12 45.33 45.53 1.42 42.39 42.62 42.84 43.06 43.28 43.50 43.72 43.93 44.15 44.36 44.57 44.78 44.99 45.19 45.40 45.60 45.80 46.00 46.20 1.43 43.10 43.32 43.54 43.76 43.98 44.19 44.41 44.62 44.83 45.04 45.25 45.46 45.67 45.87 46.07 46.27 46.47 46.67 46.87 1.44 43.79 44.01 44.23 44.45 44.66 44.88 45.09 45.30 45.51 45.72 45.93 46.13 46.34 46.54 46.74 46.94 47.14 47.33 47.53 1.45 44.47 44.69 44.91 45.13 45.34 45.55 45.76 45.97 46.18 46.39 46.59 46.80 47.00 47.20 47.40 47.60 47.79 47.99 48.18 1.46 45.15 45.37 45.58 45.80 46.01 46.22 46.43 46.60 46.85 47.05 47.25 47.46 47.66 47.85 48.05 48.25 48.44 48.63 48.82 1.47 45.82 46.03 46.25 46.46 46.67 46.88 47.09 47.30 47.50 47.70 47.91 48.11 48.30 48.50 48.70 48.89 49.08 49.27 49.46 1.48 46.48 46.69 46.91 47.12 47.33 47.54 47.74 47.95 48.15 48.35 48.55 48.75 48.94 49.14 49.33 49.52 49.71 49.90 50.09 1.49 47.13 47.35 47.56 47.77 47.97 48.18 48.38 48.59 48.79 48.99 49.19 49.38 49.58 49.77 49.96 50.15 50.34 50.53 50.71 1.50 47.78 47.99 48.20 48.41 48.61 48.82 49.02 49.22 49.42 49.62 49.82 50.01 50.20 50.39 50.58 50.77 50.96 51.14 51.33 1.51 48.42 48.63 48.84 49.04 49.25 49.45 49.65 49.85 50.05 50.24 50.44 50.63 50.82 51.01 51.20 51.38 51.57 51.75 51.93 1.52 49.05 49.26 49.46 49.67 49.87 50.07 50.27 50.47 50.66 50.86 51.05 51.24 51.43 51.62 51.80 51.99 52.17 52.35 52.53 1.53 49.67 49.88 50.08 50.28 50.49 50.68 50.88 51.08 51.27 51.46 51.66 51.84 52.03 52.22 52.40 52.59 52.77 52.95 53.12 1.54 50.29 50.49 50.69 50.89 51.09 51.29 51.49 51.68 51.87 52.06 52.25 52.44 52.63 52.81 52.99 53.18 53.36 53.53 53.71 1.55 50.89 51.10 51.30 51.50 51.69 51.89 52.08 52.28 52.47 52.66 52.84 53.03 53.21 53.40 53.58 53.76 53.94 54.11 54.29 1.56 51.49 51.69 51.89 52.09 52.29 52.48 52.67 52.86 53.05 53.24 53.43 53.61 53.79 53.97 54.15 54.33 54.51 54.68 54.86 1.57 52.09 52.28 52.48 52.68 52.87 53.06 53.25 53.44 53.60 53.82 54.00 54.18 54.37 54.55 54.72 54.90 55.07 55.25 55.42 1.58 52.67 52.87 53.06 53.26 53.45 53.64 53.83 54.02 54.20 54.39 54.57 54.75 54.93 55.11 55.28 55.46 55.63 55.80 55.97 1.59 53.25 53.44 53.64 53.83 54.02 54.21 54.39 54.58 54.77 54.95 55.13 55.31 55.49 55.66 55.84 56.01 56.18 56.35 56.52 1.60 53.81 54.01 54.20 54.39 54.58 54.77 54.95 55.14 55.32 55.50 55.68 55.86 56.04 56.21 56.38 56.55 56.72 56.89 57.06 1.61 54.37 54.57 54.76 54.95 55.13 55.32 55.50 55.69 55.87 56.05 56.23 56.40 56.58 56.75 56.92 57.09 57.26 57.43 57.59 1.62 54.93 55.12 55.31 55.49 55.68 55.86 56.05 56.23 56.41 56.59 56.76 56.94 57.11 57.28 57.45 57.62 57.79 57.95 58.12 1.63 55.47 55.66 55.85 56.03 56.22 56.40 56.58 56.76 56.94 57.12 57.29 57.46 57.64 57.81 57.97 58.14 58.31 58.47 58.63 1.64 56.01 56.20 56.38 56.57 56.75 56.93 57.11 57.29 57.46 57.64 57.81 57.98 58.15 58.32 58.49 58.66 58.82 58.98 59.14 1.65 56.54 56.72 56.91 57.09 57.27 57.45 57.63 57.81 57.98 58.15 58.33 58.50 58.67 58.83 59.00 59.16 59.32 59.49 59.65 1.66 57.06 57.25 57.43 57.61 57.79 57.97 58.14 58.32 58.49 58.66 58.83 59.00 59.17 59.33 59.50 59.66 59.82 59.98 60.14 1.67 57.58 57.76 57.94 58.12 58.29 58.47 58.65 58.82 58.99 59.16 59.33 59.50 59.66 59.83 59.99 60.15 60.31 60.47 60.63 1.68 58.08 58.26 58.44 58.62 58.79 58.97 59.14 59.31 59.48 59.65 59.82 59.99 60.15 60.31 60.48 60.64 60.79 60.95 61.11 1.69 58.58 58.76 58.94 59.11 59.29 59.46 59.63 59.80 59.97 60.14 60.30 60.47 60.63 60.79 60.95 61.11 61.27 61.43 61.58 1.70 59.07 59.25 59.42 59.60 59.77 59.94 60.11 60.28 60.45 60.61 60.78 60.94 61.10 61.26 61.42 61.58 61.74 61.89 62.05 1.71 59.55 59.73 59.90 60.08 60.25 60.42 60.59 60.75 60.92 61.08 61.25 61.41 61.57 61.73 61.89 62.04 62.20 62.35 62.50 1.72

60.20 60.38 60.55 60.72 60.88 61.05 61.22 61.38 61.54 61.71 61.87 62.03 62.18 62.34 62.50 62.65 62.80 62.95 1.73 60.67 60.84 61.01 61.18 61.34 61.51 61.67 61.84 62.00 62.16 62.32 62.48 62.63 62.79 62.94 63.09 63.25 63.40 1.74 61.13 61.30 61.46 61.63 61.80 61.96 62.12 62.28 62.44 62.60 62.76 62.92 63.07 63.23 63.38 63.53 63.68 63.83 1.75

61.74 61.91 62.08 62.24 62.40 62.56 62.72 62.88 63.04 63.20 63.35 63.51 63.66 63.81 63.96 64.11 64.26 1.76

62.35 62.51 62.68 62.84 63.00 63.16 63.31 63.47 63.62 63.78 63.93 64.08 64.23 64.38 64.53 64.68 1.77 62.78 62.94 63.10 63.26 63.42 63.58 63.74 63.89 64.04 64.20 64.35 64.50 64.65 64.80 64.95 65.09 1.78

63.37 63.52 63.68 63.84 64.00 64.15 64.30 64.46 64.61 64.76 64.91 65.06 65.21 65.35 65.50 1.79 63.78 63.94 64.09 64.25 64.40 64.56 64.71 64.86 65.01 65.16 65.31 65.46 65.60 65.75 65.89 1.80

64.34 64.50 64.65 64.81 64.96 65.11 65.26 65.41 65.56 65.70 65.85 66.00 66.14 66.28 1.81

64.89 65.05 65.20 65.35 65.50 65.65 65.80 65.94 66.09 66.24 66.38 66.52 66.67 1.82

65.43 65.58 65.73 65.88 66.03 66.18 66.32 66.47 66.61 66.76 66.90 67.04 1.83

65.96 66.11 66.26 66.41 66.55 66.70 66.84 66.98 67.13 67.27 67.41 1.84

66.48 66.63 66.77 66.92 67.06 67.20 67.35 67.49 67.63 67.77

1.85 66.99 67.13 67.27 67.42 67.56 67.70 67.84 67.98 68.12

CRYSTALLIZATON AREA

JOHNSON CONTROLS170





8

SECTION 8 – TROUBLESHOOTING

If the chiller-heater has any problems or an abnormal condition is detected while it operates, find the cause. Use the procedures listed below to fix the problem.

If the cause is not clear, using the countermeasure can-not repair the problem, or if the chiller-heater seems to have a serious problem, contact your local Johnson Controls Service Center immediately.

If the chiller-heater stops because of a malfunction, wait until the chilled/hot water pump, cooling water pump, and chiller-heater unit stop completely, then verify the following items.

Causes of lighting of trouble indicator lamps on con-trol panel of absorption chiller-heater and countermea-sures against them.

Several items should be checked routinely whenever the chiller-heater experiences any trouble or abnormal-ity.

• Check to see if the main fuel gas valve was closed by mistake.

• Open the main valve.

• See if the valves of the chilled/hot system and cooling water system are set correctly. Verify the flow rate.

• See if the cooling tower is operating normally.

• Check the valves and pumps of the cooling water system. Verify the flow rate.

Contact your local Johnson Controls Service Center if any of the following apply:

• The water flow rate setting is unknown.

• It takes 30 minutes or more to restore operations.

• Solution is crystallized.

• The cause of the trouble is not readily apparent.Check the causes in order. Any of these causes will state the diluting operation automatically then stop the chiller-heater. Check that the diluting operation was completed, and if not, dilute the solution according to the Manual Refrigerant Blow Down and Diluting Method on page 148 .

JOHNSON CONTROLS172

FORM 155.32-ICOM1.EN.GBISSUE DATE: 3/29/2018SECTION 8 – TROUBLESHOOTING

TABLE 42 - TROUBLESHOOTING THE HIGH TEMPERATURE GENERATOR

ITEM CAUSE COUNTERMEASURE

1 Cooling water is insufficient or suspended.

• See if the cooling water supply rate conforms to the specification. (Check the flow meter, discharge pressure of the cooling water pump, current, and other applicable meters and gauges)

• If the flow rate is insufficient, check the opening ratio of the flow controller valve and check the strainer for clogging.

2 Cooling water temperature at inlet is high.

Check the capacity of the cooling tower.

3 Non-condensable gas stays in the machine.

• Check the capacity of the vacuum pump.• Check the purge unit. • Purge air from the chiller-heater (See SECTION 7 – MAINTENANCE). • If partial load operation continues for a long period, non-condensable gas tends

to stay in the absorber. In this case, purge directly from the absorber. Use the instructions shown in SECTION 7 – MAINTENANCE).

4Heat exchange tube is dirty (chilled/hot water, cooling water).

Contact your local Johnson Controls Service Office. 5 Solution is crystallized.6 Corrosion inhibitor is worn.

7 Air leaks in absorption chiller-heater.

TABLE 43 - REFRIGERANT OVERCOOLING RELAYITEM CAUSE COUNTERMEASURE

1 Chilled/hot water flow rate lowers or changes sharply.

• See if the chilled/hot water flow rate changes sharply (particularly in the case of variable flow rate specification).

• If it changes sharply, apply a limit of the change rate to the chilled/hot flow control or take another measure.

2 Cooling water temperature at inlet changes sharply.

• See if the cooling water temperature at inlet changes sharply (by checking start and stop of the fan).

• If the chiller-heater refrigerant temperature is low, the chiller-heater stops immediately but does not perform the diluting operation. If left in the current state, the solution may crystallize in 4-5 hours. To prevent this, dilute the solution according to the information shown in Manual Refrigerant Blow Down and Diluting Method on page 148.

The time required for refinement of the refrigerant depends on the current load condition. Constantly check the liquid level in the refrigerant tank while the refrigerant is being refined. If the refrig-erant liquid level appears i the level gauge of the refrigerant tank, close the valve immediately and completely.

3 Load lowers sharply. See if the load changes sharply.

4 Refrigerant is dirty (contains solution).

See if the refrigerant refining operation has been performed. For the refrigerant refining method, see Refrigerant Refining Method on page 148.

5 Heat exchange tube is dirty (Chilled/hot water).

Contact your local Johnson Controls Service Office.6 Temperature controller or

safety switch is broken.


SECTION 8 – TROUBLESHOOTINGFORM 155.32-ICOM1.EN.GB ISSUE DATE: 3/29/2018

8

TABLE 44 - CHILLED OR HOT WATER TIME OUT OR COOLING WATER TIME OUT

ITEM CAUSE COUNTERMEASURE1 Pump abnormal Check the water pump.2 Insufficient water flow • Check the water line.

• Check the water flow.3 Water suspension relay

abnormal• Check the water suspension relay. • Check to see if the pipe is clogged.

4 Water pump interlock abnormal

Check the water pump.

TABLE 45 - PUMP INTERLOCKSITEM CAUSE COUNTERMEASURE

1 Water pump interlock was not established

Check the water pump interlock.

TABLE 46 - LOW COOLING WATER INLET TEMPERATURE

ITEM CAUSE COUNTERMEASURE1 Cooling water inlet

temperature control system is abnormal

Check the cooling water inlet temperature control system. If this problem occurs, the absorption chiller-heater performs the dilution operation automatically and then stops. Go to the Control Center immediately to confirm that the dilution took place. If it did not, dilute the solution according to the procedure shown in Manual Refrigerant Blow Down and Diluting Method on page 148 .

TABLE 47 - ABNORMAL CONTROL SENSORIf these problems occur, the absorption chiller-heater performs the dilution operation and then stops. Go to the Control Center immediately and confirm that the dilution took place. If it did not take place, dilute the solu-tion according to the procedure shown in Manual Refrigerant Blow Down and Diluting Method Manual Refrigerant Blow Down and Diluting Method on page 148 .

ITEM CAUSE COUNTERMEASURE1 Contact failure Tighten terminal in control panel2 Sensor abnormal or

disconnected Contact your local Johnson Controls Service Office.3 Inductive noise

TABLE 48 - CPU ABNORMALITEM CAUSE COUNTERMEASURE

1 Control board malfunction Contact your local Johnson Controls Service Office.

JOHNSON CONTROLS174


In the case of chilled/hot water suspension, the absorp-tion chiller-heater does not dilute the solution, but stops immediately. If the absorption chiller-heater is left as is, the solution may crystallize in 4-5 hours. To pre-vent this, dilute the solution according the instructions shown in Manual Refrigerant Blow Down and Diluting Method on page 148.

TABLE 49 - CHILLED OR HOT WATER SUSPENSION

ITEM CAUSE COUNTERMEASURE

1 Chilled/hot water pump has a problem.

Check the chilled/hot water pump for a problem.

2 Chilled/hot water flow rate is low.

• Check to see if the chilled/hot flow- rate is below the setpoint of the water suspension switch. If it is low, check the flow controller, check the strainer for clogging.

• Check the opening ratio of the flow control valve.

3Pressure transfer pipe of water suspension switch is clogged. Contact your local Johnson Controls Service Office.

4 Water suspension switch is broken.

If the chiller-heater has a pump problem, it does not perform the diluting operation but stops immediately. If left as it is, the solution in it may be crystallized in 4-5 hours. To prevent this, contact your local Johnson Controls Service Office immediately.

TABLE 50 - PUMP(S) OVERLOADED OR OVERHEATED

ITEM CAUSE COUNTERMEASURE1 Bearings of the pump are worn or clogged.

Contact your local Johnson Controls Service Office.

2 Pump is damaged by cavitation caused by low liquid level.3 Thermal switch is not set properly.4 Internal cycle control valve is not set properly.5 Filter in the pump is clogged.6 Solution is crystallized.7 Circuit breaker has tripped.



8

TROUBLESHOOTING PERFORMANCE ISSUESIf the performance is insufficient while the capacity control valve is fully opened or if the capacity control valve does not fully open while the load is sufficient, check numbers 1-6 in the following table in order. If the cause is found in numbers above 6, contact your lo-cal Johnson Controls Service Center immediately.

TABLE 51 - TROUBLESHOOTING PERFORMANCE ISSUESITEM CAUSE COUNTERMEASURE

1 Cooling water temp. is high. Check the capacity of the cooling tower.

2 Cooling water flow rate is insufficient.

• See if the cooling water supply rate matches the specification. (Check the flow meter, discharge pressure of the cooling water pump, current, and other applicable gauges or pumps.

• If the flow rate is insufficient, check the opening ratio of the flow controller valve and check the strainer for clogging.

3 Cooling water heat exchange tube is dirty. Contact your local Johnson Controls Service Office.

4 Non-condensable gas remains in machine.

• See Purge Procedure on page 136. • Check the capacity of the vacuum pump. • Check the purge unit for trouble. • Purge non-condensable gas from the absorption chiller-heater. • If partial-load operation is continued for a long period, non-

condensable gas tends to stay in the absorber. In this case, purge directly from the low-pressure side (absorber). See Purge Procedure on page 136 .

• Even if the automatic purge unit is installed, purge from the lower pressure side (absorber) manually.

5 Chilled/hot water outlet temperature is not set properly

Set each setting parameter of the chilled/hot water outlet temperature controller properly

6 Manual refrigerant blow valves are kept open. Check that manual refrigerant blow valve V8 is fully closed.7 Refrigerant Pump Stop button is pressed. Press the Refrigerant Pump Auto button.8 Corrosion inhibitor is depleted.

Contact your local Johnson Controls Service Office.

9 Surface active agent is depleted.10 Refrigerant is dirty (contains solution).11 Internal cycle control valve is not set properly.

12 Chilled/hot water outlet temperature controller is broken

13 Solution is crystallized.14 Air leaks in absorption chiller-heater.

JOHNSON CONTROLS176


VACUUM PUMPWhen the Purge Abnormal Alarm lights, the vacuum pump needs to be disassembled for inspection. Contact your local Johnson Controls Service Center. When the Abnormal Purge Frequency Alarm lights or the vacu-um level of the purging line did not reach the speci-fied level during the vacuum pump capacity check, the whole of the purge line needs to be inspected. See Table 48 on page 173.

TABLE 52 - VACUUM PUMP TROUBLESHOOTING ITEM CAUSE COUNTERMEASURE

1 Deterioration of vacuum pump oil. Replace the vacuum pump oil.

2 Wrong operation of purging line switching when vacuum pump capacity was checked.

• See Purge Procedure on page 136 • Confirm the valves are open or closed.

3 Deterioration of vacuum pump belt.

Contact your local Johnson Controls Service Center.4 Leakage in purge pipe lines.5 Solenoid valve or check valve in the purge line is

clogged.



8

ABNORMAL SOLUTION AND REFRIGERANT LEVELSCauses of abnormal levels of solution and refrigerant and countermeasures against them are shown below. If the level of the solution or refrigerant is abnormal, cor-rect it according to the following procedure.

TABLE 53 - ABNORMAL SOLUTION AND REFRIGERANT LEVELS

SECTION NORMAL CONDITION

ABNORMAL CONDITION CAUSE COUNTERMEASURE

Refrigerant Overflow (G101)

High temperature of cooling water inlet temperature.

• See if the cooling water supply rate is conformed to the specification. (Check the flow meter, discharge pressure of the cooling water pump, current, and other applicable meters and gauges). If the flow rate is insufficient, check the opening ratio of the flow controller valve and check the strainer for clogging.

• Check the capacity of the cooling tower.

• See Purge Procedure on page 136.• Check the capacity of the vacuum pump. • Check the purge unit for trouble. • Purge non-condensable gas from the absorption chiller-

heater. • If partial-load operation is continued for a long period,

non-condensable gas tends to stay in the absorber. In this case, purge directly from the low pressure side (absorber), See Purge Procedure on page 136 .

Low temperature of chilled water outlet temperature.Cooling water tube fouling

Purge trouble

Air leakage

Refrigerant Tank (G102)

Cooling water inlet temperature is low. Setpoint error of automatic start/stop switch.

• Check cooling water inlet temperature. • Check the setpoint.

Solution Tank (G103)

Purging is in sufficient.

See Purge Procedure on page 136.

Adjusting valve opening setting error.

Contact your local Johnson Controls Service Center.Solution is crystallized.

JOHNSON CONTROLS178


Causes of insufficient vacuum level of the purge line and countermeasure against the insufficient level.

TABLE 54 - INSUFFICIENT VACUUM LEVELSITEM CAUSE COUNTERMEASURE

1 Purge pump trouble. Contact your local Johnson Controls Service Office.2 Deterioration of vacuum pump oil. Replace the vacuum pump oil.3 Wrong operation of purging line switching

when the vacuum pump capacity was checked.

• See Purge Procedure on page 136.• Confirm that the valve is open or closed.

4 Deterioration of the vacuum pump belt.

Contact your local Johnson Controls Service Office.5 Leakage in purge pipe line.6 Blocked or dysfunctional purge solenoid

valves.7 Check valve does not open.8 Valve V21 mistakenly open. • See Purge Procedure on page 136.

• Confirm that the valve is open or closed.



8

FIGURE 73 - TROUBLESHOOTING SEQUENCE FLOW CHART

Emergency stop

Audible alarm (buzzer) “ON”

Dilution operation time calculation

Chilled water and/or refrigerant temp. low cut-out

Dilution Finish

• Operation interlock • Cooling water pump interlock• Constantly monitoring interlock• Combustion monitoring interlock• Low cooling water inlet temperature• HG high temperature / high pressure• High cut• High exhaust gas temperature• Flame failure• Fuel line abnormal• HG low liquid level• Burner fan / Oil pump abnormal• Control sensor abnormal• CPU abnormal

Failure indicator light “ON”

1

1

Yes

Yes

No

No

No

Yes

Reset operation (buzzer “OFF”)

External outlet issues

No

Yes

Dilution operation complete

Stop dilution operation?

Yes

Damper fully closed

Burner stop

Dilution operation time integration

Solution refrigerant pump stop

Dilution operation time integration stop

Solution and refrigerant pump continue to

operate

Solution pump and refrigerant pump stop

Chilled/hot water cooling water pump

stop

HT- Gen. pressure low

Air conditioner and cooling tower fan stop

Dilution operation more than

30 minutes

No

• Chilled/hot water suspension• Chilled water overcooled• High hot water temperature• Emergency failure interlock.• Cooling water suspension

(Option)• Solution circulation pump

abnormal• Solution spray pump

abnormal• Refrigerant pump abnormal• Solution pump inverter

abnormal

JOHNSON CONTROLS180


ACTIONS TO TAKE AGAINST POWER FAILUREIf the main power fails, take the following actions.

Power failure

Power failure interval is shorter than the controller back up interval

Power failure interval is shorter than 5 minutes

Power failure interval is shorter than 1 hour.

Continue running machine

Re-start using the Control Panel located on the chiller-heater. Monitor until chiller-heater returns to normal operation. Purge directly from the absorber. Stop the machine to ensure the dilution operation takes place. The dilution operation takes approximately 10 minutes.

Power is restored

Chiller-Heater stops

No

If the power is not restored within 4-5 hours, the solution in the absorber may be crystallized. Contact your local Johnson Controls Service Office for assistance.

Re-start using the Control Panel located on the chiller-heater. Monitor until chiller-heater returns to normal operation. Purge directly from the absorber.

No

Yes

Yes

No

Yes

FIGURE 74 - ACTIONS TO TAKE AGAINST POWER FAILURE



9

SECTION 9 - DECOMMISSIONING, DISMANTLING, AND DISPOSAL

Unless otherwise indicated, the operations described below can be performed by any properly trained main-tenance technician.

1. Isolate all sources of electrical supply to the unit, including any control system supplies switched by the unit. Make sure that all points of isolation are secured in the off position.

2. Disconnect and remove the supply cables. For connection points, see SECTION 3 - HANDLING, STORAGE, INSTALLATION AND REASSEM-BLY.

3. Fill the interior of the unit with N2 gas to pressur-ize up to 0.01~0.02 MPa.G.

4. Prepare a suitable container. See Table 5 on page 38 and Table 6 on page 38. Drain the remain-der of the solution and refrigerant in the unit from each service valve as completely as possible into a container. Dispose of them in a suitable and safe manner.

5. Isolate the unit heat exchanger from the external water systems and drain the heat exchanger sec-tion of the system. If no isolation valves are in-stalled it may be necessary to drain the complete system.

6. If glycol was used in the water system, or chemi-cal additives are contained, dispose of the solu-tion in a suitable and safe manner. Under NO cir-cumstances should any system containing glycol be drained directly into domestic waste or natural water systems.

7. After draining, disconnect and remove the water.

8. Remove fixing down bolts, and then lift the unit from position, using the points provided and equipment with adequate lifting capacity.

See SECTION 3 - HANDLING, STORAGE, INSTAL-LATION AND REASSEMBLY for unit installation in-structions, and Table 10 on page 42 and Table 6 on page 38 for unit weights.

Units, which cannot be removed in one piece after dis-connection, must be dismantled in position. Handle each component carefully. Where possible, dismantle units in the reverse order of installation.

Make sure that while components are being removed, the remaining parts are supported in a safe manner.

Only use lifting equipment of adequate capacity.

After removing the unit from position, dispose of the unit parts according to local laws and regulations.

5000 Renaissance Drive, New Freedom, Pennsylvania USA 17349 800-861-1001 Subject to change without notice. Printed in USACopyright © by Johnson Controls 2017 www.johnsoncontrols.com ALL RIGHTS RESERVEDForm 155.32-ICOM1.EN.GB (318)Supersedes: 155.32-ICOM1.EN.GB (1017)Issue Date: March 29, 2018

Documents

DOUBLE EFFECT DIRECT FIRED ABSORPTION CHILLER-HEATER