INSTALLATION MANUAL - F.W. Webb Company · • Follow the instructions detailed in the installation manual. • Confirm proper insulating, taping and bundling of refrigeration lines,

Johnson Controls Unitary Products 898149-UIM-C-0114

LX DUCTLESS SINGLE-SPLIT AIR CONDITIONERS AND HEAT PUMPSMODELS: 16 SEER

3/4 to 2 TONS – 1 PHASE

INSTALLATION MANUAL

IST OF SECTIONSGENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2SHIPPING AND PACKAGING LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3REQUIRED INSTALLATION TOOLS (NOT SUPPLIED) . . . . . . . . . . . . . . . . . .3SELECTING THE INSTALLATION LOCATION . . . . . . . . . . . . . . . . . . . . . . . . .4SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5REFRIGERANT LINE SET REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . .6UNIT DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8TORQUE REQUIREMENTS FOR CAPS AND FASTNERS . . . . . . . . . . . . . . . .9INDOOR UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9INDOOR UNIT WIRING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10PIPE FORMING AND DRAIN PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10FLARING WORK AND PIPING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . .12

INDOOR UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13OUTDOOR UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13OUTDOOR UNIT WIRING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 14REFRIGERANT PIPING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15PURGING PROCEDURE, LEAK TEST AND TEST RUN . . . . . . . . . . . . . . . . 16TEST OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17EMERGENCY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18INSTALLATION AND MAINTENANCE OF HEALTHY FILTER (ACCESSORY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18TYPICAL UNIT WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18INDOOR AND OUTDOOR UNITS ERROR CODES . . . . . . . . . . . . . . . . . . . . . 23RESISTANCE TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

LIST OF FIGURESNomenclature Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2Indoor Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Prevailing Wind Barrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Clearances for Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Condensate Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Typical System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Indoor Unit Mounting Brackets with Weights & Dimensions . . . . . . . . . . . . . . . . .8Outdoor Unit Weights & Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Mounting Bracket Spots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Masonry Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9PVC Wall Sleeve Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Indoor Unit Wall Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Indoor Electrical Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Drain Piping Outlets Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Proper and Improper Drain Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Left or Right Side Exits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Right or Right Rear Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Left or Left Rear Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Drain Hose Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Drain Hose Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Pipe Cutting Approved Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Deburring Line Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Flaring Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Proper and Improper Flaring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Connections at Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Flare Nuts Tighten i ng . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Indoor Unit Attachment to Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Proper and Improper Drain Hose Installation Application . . . . . . . . . . . . . . . . . 13Indoor Unit Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Outdoor Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Outdoor Unit Slab or Frame Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Outdoor Unit Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Outdoor Unit Wiring Terminal Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Indoor/Outdoor Piping Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Outdoor Line Set Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Line Set Connection Insulation and Taping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Utility Bundle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Exterior Wall Utility Cover (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Service Valve Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Gauge Set Connections for Leak Test, Evacuation and Charging . . . . . . . . . . 17Leak Test Line Set Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Emergency Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Filter Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1809K & 12K Outdoor Air Conditioners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1909K & 12K Indoor Air Conditioners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1918K & 24K Outdoor Air Conditioners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2018K & 24K Indoor Air Conditioners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2009K & 12K Outdoor Heat Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2109K & 12K Indoor Heat Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2118K & 24K Outdoor Heat Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2218K & 24K Indoor Heat Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Indoor Unit Front Panel Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

LIST OF TABLESIndoor Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Outdoor Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Air Conditioner Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Heat Pump Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Insulation Thickness & Material Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Refrigerant Line Set Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Indoor Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Outdoor Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Caps and Fasteners Torque Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Wire Color Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Flare Nut Torque Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Error Codes - 09K 12K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Error Codes - 18K 24K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Resistance Table of Outdoor and Indoor Tube Temperature Sensors (20K) . . . 34Resistance Table of Outdoor Discharge Temperature Sensor (50K) . . . . . . . . . 35

RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE

SECTION I: GENERALThese instructions are intended as a general guide and do not supersede local codes in any way. Consult authorities having jurisdiction before instal-lation.

These units must be installed as a matched system as specified in the UPG Ductless Technical Guide.

898149-UIM-C-0114

2 Johnson Controls Unitary Products

SECTION II: SAFETYThis is a safety alert symbol. When you see this symbol onlabels or in manuals, be alert to the potential for personalinjury.

Understand and pay particular attention to the signal words DANGER,WARNING, or CAUTION.

DANGER indicates an imminently hazardous situation, which, if notavoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation, which, if notavoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation, which, if notavoided may result in minor or moderate injury. It is also used toalert against unsafe practices and hazards involving only property dam-age.

Improper or incomplete installation, adjustment, alteration, service ormaintenance could cause personal injury, loss of life, or damage toproperty. Installation and service must be performed by a licensedprofessional dealer or contractor.

The Clean Air Act of 1990 bans the intentional venting of refrigerant(CFCs, HCFCs and HFCs) as of July 1, 1992. Approved methods ofrecovery, recycling or reclaiming must be followed. Fines and/orincarceration may be levied for noncompliance.

• The unit should be installed by an authorized dealer or contractor according to local codes and in compliance with this manual.• Follow the instructions detailed in the installation manual.• Confirm proper insulating, taping and bundling of refrigeration lines, main power lines and drain line (see procedure starting on Page 14).• Perform electrical work according to the installation manual and local codes. Be sure to use a dedicated circuit (do not connect other electrical

appliances to the same circuit).• Ground the unit correctly - do not connect the ground wire to a gas pipe, lightning rod, telephone ground or water pipe. Defective grounding

could cause equipment malfunction and/or electric shock.• Do not damage the wires.• Shut off the main power when setting up the indoor P.C. board or wiring.• Use the specified wires to securely connect the indoor and outdoor units. Attach the wires firmly and avoid applying to much pressure to the ter-

minal block - Stranded wire is highly recommended to connect the outdoor unit to the indoor unit. The stranded wire ensures proper systemcommunication and operation.

• Do not install the unit in a place where flammable gas may leak.• Do not use intermediate connection of the power cord or a power extension cord.• The refrigerant temperature tends to get very high. Make sure you keep the electrical wires away from the copper tube.• Use the parts provided or specified parts for the installation work.• Securely attach the electrical cover to the indoor unit and the service panel to the outdoor unit.• When installing or relocating the unit, make sure that no substance other than the specified refrigerant (R410A) enters the refrigerant circuit.• Do not discharge the refrigerant into the atmosphere. Check that the refrigerant gas does not leak after installation has been completed. If refrig-

erant leaks during installation, ventilate the room.• Use appropriate tools and piping materials for installation - the pressure of R410A is 1.6 times higher than R22. Not using the appropriate tools

and materials, or improper installation could cause the pipes to burst causing an injury.• When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.• When installing the unit, securely connect the refrigerant pipes before starting the compressor.• Fasten a flare nut with a torque wrench as specified in this manual.• Perform the drainage/piping work securely according to the installation manual - If there is defect in the drainage/piping work, water could drip

from the unit, and damage household items.• Do not install the outdoor unit where small animals may live. Keep the area around the unit clean• The included remote control could be shipped in various locations in the unit packaging. Locate remote control before discarding packaging (i.e.

bag assembly, styrofoam, etc.). Unit cannot be properly operated without the included remote control.

FIGURE 1: Nomenclature Identification

898149-UIM-C-0114

Johnson Controls Unitary Products 3

SECTION III: SHIPPING AND PACKAGING LISTCheck the unit components for shipping damage. If you see any damage, contact the carrier immediately.

ASSEMBLED INDOOR UNITThe assembled indoor unit will include the following items:

ASSEMBLED OUTDOOR UNITThe assembled outdoor unit will include the following items which are located with the unit:

SECTION IV: REQUIRED INSTALLATION TOOLS (NOT SUPPLIED)1. Gauge manifold

2. Electronic balance for refrigerant charging

3. Phillips head screwdriver

4. Knife or wire stripper

5. Carpenters level

6. Hammer

7. Drill

8. Tube cutter

9. Tube flaring tool

10. Torque wrench

11. Adjustable wrench

12. Reamer (for de-burring)

13. Vacuum pump (For R410A)

14. Gas leakage detector

TABLE 1: Indoor Parts

Remote Control 1

Flare nut 1/4” for small line on all size units except 30K which

uses 5/8”.

1

Batteries (AAA) 2

Cable routing guide with mounting

hardware (18 - 24 kBtu systems only)

1

Wall mounting bracket screws

09, 12 & 18 kBtu (5) 24K kBtu (10)

Installation Manual 1

Foam tube insulation (for condensate line

attached to indoor unit)1

User’s Information Manual

1

TABLE 2: Outdoor Parts

Auxiliary drain hole plugs (heat pump only)

1 - 3

Drain plug (heat pump only)

1

898149-UIM-C-0114


SECTION V: SELECTING THE INSTALLATION LOCATIONINDOOR UNIT (SEE FIGURE 2 FOR INSTALLATION DIMENSIONS)1. Install the unit securely in a place that can bear the weight and

vibration of the unit.2. Select a location where the condensate can be easily drained out.3. Install in a location where there is enough space to access the unit

for routine maintenance (air filter can be removed for cleaning orreplacement).

4. Install where airflow is not blocked.5. Install in a location for optimized cold or warm air distribution.6. Install in a location that's not exposed to direct sunlight.7. Install in a location that's at least 3 ft away from a TV and radio to

avoid possible interferences with the operation of the air condi-tioner/heat pump.

8. Install in a location that's at least 3 feet away from fluorescent andincandescent lights to avoid interference with the remote control.

REMOTE CONTROL1. Keep the remote control where it is convenient to operate and eas-

ily visible.

2. Keep the remote control away from children.

3. When using the I FEEL feature, select a location for the remotecontrol that's about 4 ft. above the floor.

OUTDOOR UNIT (SEE FIGURE 3 FOR INSTALLATION DIMENSIONS)1. Some localities are adopting sound ordinances based on the unit's

sound level registered from the adjacent property, not from theproperty where the unit is installed. Install the unit as far as possiblefrom the property line.

2. When possible, do not install the unit directly outside a window.Glass has a very high level of sound transmission. For properplacement of unit in relation to a window see Figure 4.

3. Install unit level or, if on a slope, maintain slope tolerance of 2degrees (or 2 inches per 5 feet) away from building structure.

4. Install the unit high enough above the ground or roof to allow ade-quate drainage of defrost water and prevent ice or snow build-up(required for heat pumps).

5. In heavy snow areas, do not locate the unit where drifting will occur.The unit base should be elevated above the depth of averagesnows.

6. When installed in areas where low ambient temperatures exist,locate unit so winter prevailing winds do not blow directly onto out-door unit.

7. If unit coil cannot be installed away from prevailing winter winds, awind barrier should be constructed. Size barrier at least the sameheight and width as outdoor unit. Install barrier 12 inches minimumfrom the sides of the unit in the direction of prevailing winds as illus-trated in Figure 3.

8. Locate unit away from overhanging roof lines which would allowwater or ice to drop on, or in front of, coil or into unit.

9. Install in a location that has good airflow.

10. Install in a location that has a rigid wall or support to minimize thesound operation and/or vibration.

11. Slab or roof mounting - install the unit a minimum of 4 inches abovethe roof or ground surface to avoid ice build-up around the unit.Locate the unit above a load bearing wall or area of the roof thatcan adequately support the unit. Consult local codes for rooftopapplications.

12. Install in a location that's far away from combustible materials andvapors.

13. Install in a location that's at least 10 ft away from a TV and radioantennas to avoid possible interferences with the operation of theair conditioner/heat pump.

14. Install the unit horizontally.

Reference LocationRequired Clearance

A Clearance between unit and ceiling 6 inches

B Clearance between unit and floor 6 feet

C / D Clearance to the right and left of the unit 6 inches

FIGURE 2: Indoor Clearances

In rooms where inverter type fluorescent lamps are used, the signalfrom the wireless remote controller may not be received.

A

DC

B

NOTICE

FIGURE 3: Prevailing Wind Barrier

FIGURE 4: Clearances for Outdoor Unit

PREVAILING WINTER WINDS

WIND BARRIER

INLET AIR

12” (305MM) MINIMUM DISTANCE

DISCHARGE AIR

INSTALL UNIT AWAY

FROM WINDOW

E F

G

H

I

898149-UIM-C-0114


Avoid the following places for installation where air conditioner trouble isliable to occur.

• Where flammable gas could leak.• Where there is an excessive amount of machine oil in the air.• Where sulfide gas is generated such as a hot spring.• Where there is high-frequency equipment.

CONDENSATE DRAINAGE REQUIREMENT (HEAT PUMP ONLY)Condensate formed during the heating and defrost processes must bedrained from heat pump units. Drain holes are provided in the base ofthe units to ensure proper drainage. Heat pumps must be raised wheninstalled on a concrete pad or the ground to allow drainage to occur. Ifthe heat pump unit is installed on a wall mounting bracket, insert theprovided drain connector into one of the 1 inch drain holes and attacheda field-provided insulated drain hose to the connector. Use the providedrubber plugs to cover any unused drain holes. See Figure 5.

SECTION VI: SPECIFICATIONSPOWER SUPPLY AND INDOOR/OUTDOOR WIRE CONNECTION

• The system should be powered from a dedicated circuit.• Wiring work should be based on applicable technical standards.• Wiring connections should be made following the provided

diagrams.• Make sure all electrical connections are securely tightened.

Solid conductor AWG14 or stranded conductor AWG14 are the MINI-MUM allowable wire sizes. There are some applications that will requirelarger gauge conductors depending on the voltage and amperage rat-ings on the data plate and the distance that the conductors will berouted. It is the installing contractor's responsibility to properly size theelectrical conductors for the equipment and for the application.

All of the indoor units and outdoor units should have the electrical con-ductors sized using the National Electrical Code (NEC) and the localauthority having jurisdiction whichever is more stringent. If the equip-ment is installed outside of the United States, all local codes within thecountry of origin must be followed.

The Ductless indoor units must have a minimum of 14 gauge, 600volt double insulated copper conductors. The conductors for the indoorunit can be either solid or stranded copper. When possible the indoorunit should have stranded wire for the communication to ensure propercommunication between the indoor and outdoor unit(s).

The Ductless outdoor units must have a minimum of 12 gauge, 600volt double insulated copper conductors. The conductors for the out-door unit should be solid or stranded copper conductors

.

Reference LocationRequired Clearance

E Clearance above unit 2 feet

F Clearance between air inlet and structure 12 inches

G

Clearance between unit and structure

12 inches

H 7 feet

I 12 inches

It is advisable to make a piping loop near outdoor unit so as toreduce vibration.For increased efficiency, install the outdoor unit in a location wherecontinuous direct sunlight or excessive water can be avoided asmuch as possible.

When operating the air conditioner in low outside temperature, besure to follow the instructions described below.• Never install the outdoor unit in a place where its air inlet/outlet

side may be exposed directly to wind.• To prevent exposure to wind, install the outdoor unit with its air inlet

side facing the wall and a baffle board on the air outlet side.

FIGURE 4: Clearances for Outdoor Unit

NOTICE

NOTICE

FIGURE 5: Condensate Drainage

The listed wire sizes are only minimum requirements, as previouslystated, the conductors for both indoor and outdoor units must besized using the NEC and local authority having jurisdiction.

DRAIN-WATER HOLE

BOTTOM FRAME

DRAIN PLUG

DRAIN CONNECTOR

HOSE (available commerially, inner dia. 0.63”)

NOTICE

898149-UIM-C-0114


Connecting Wires and the Ground Wire• Use double insulated copper wire with 600V insulation.

• Use copper conductors only.

• Follow all local electrical codes.

Power Supply Cable and Ground Wire• Use copper conductors only.

• Follow all local electrical codes.

SECTION VII: REFRIGERANT LINE SET REQUIREMENTS

• To prevent condensation, insulate the two refrigerant pipes.

• Refrigerant pipe bending radius must be 4 in. (100 mm) or more.

TABLE 3: Air Conditioner Electrical Specifications

INDOOR UNIT

Air ConditionersDCMF09

NWM42Q1DCMF12

NWM42Q1DCMF18

NWM42Q1DCMF24

NWM42Q1

Power Supply (V, Phase, Hz)

208/230V / 1 Phase / 60 Hz

Min. Circuit Ampacity 10A 10A 15A 16A

Fan Motor (F.L.A) 0.19 0.19 0.32A 0.45A

OUTDOOR UNIT

Air ConditionersDCMF09

CSM42Q1DHMF12

CSM42Q1DCMF18

CSM42Q1DCMF24

CSM42Q1

Power Supply (V, Phase, Hz)

208/230V / 1 Phase / 60 Hz

Max. Fuse Size (time delay) (A)

15A 15A 25A 25A


Fan Motor (F.L.A) 0.25A 0.25A 0.62A 0.62A

CompressorR.L.A 6.22A 6.22A 10.86A 11.38A

L.R.A 16.5A 16.5A / /

TABLE 4: Heat Pump Electrical Specifications

INDOOR UNIT

Heat Pumps DHMF09NWM42Q1 DHMF12NWM42Q1 DHMF18NWM42Q1 DHMF24NWM42Q1

Power Supply (V, Phase, Hz) 208/230V / 1 Phase / 60 Hz


Fan Motor (F.L.A) 0.19 0.19 0.32A 0.45A

OUTDOOR UNIT

Heat Pumps DHMF09CSM42Q1 DHMF12CSM42Q1 DHMF18CSM42Q1 DHMF24CSM42Q1

Power Supply (V, Phase, Hz) 208/230V / 1 Phase / 60 Hz

Max. Fuse Size (time delay) (A) 15A 15A 25A 25A


Fan Motor (F.L.A) 0.25 0.25 0.62A 0.62A

CompressorR.L.A 6.22A 6.22A 10.86A 11.38A

L.R.A 16.5A 16.5A / /

The the indoor unit is powered from the outdoor unit, depending onlocal code, a disconnect switch needs to be installed to a power sup-ply circuit.

NOTICE

Be sure to use the insulation of specified thickness (refer to Table 5).Excessive insulation may cause incorrect installation of the indoorunit, and too little insulation may cause condensate to form.• The unit has flared connections on both indoor and outdoor sides• Remove the valve cover from the outdoor unit then connect the

pipe• Refrigerant pipes are used to connect the indoor and outdoor units• Be careful not to crush or over bend the pipe in pipe bending• Refrigerant adjustment• If pipe length exceeds 25 ft. (7.5 m), additional refrigerant (R410A)

charge is required (The outdoor unit is charged with refrigerant forpipe length up to 25 ft. [7.5 m]).

TABLE 5: Insulation Thickness & Material Information

PipeOutside Diameter Minimum Wall

ThicknessInsulation Thickness

Insulation MaterialInch (mm)

Liquid Line .375 (9.52) 0.0315 (0.8) 0.315 (8) Heat Resistant Foam Plastic 0.045 Specific GravityGas Line .625 (15.9) 0.0394 (1.0) 0.315 (8)

898149-UIM-C-0114


TABLE 6: Refrigerant Line Set Requirements

AC & HP Indoor Units D(C,H)MF09NWM D(C,H)MF12NWM D(C,H)MF18NWM D(C,H)MF24NWM

AC & HP Outdoor Units D(C,H)MF09CSM D(C,H)MF12CSM D(C,H)MF18CSM D(C,H)MF24CSM

Connection Pipe length ft. 24.6 24.6 24.6 24.6

Connection Pipe Gas Additional Charge oz/ft. 0.2 0.2 0.2 0.2

Outer Diameter Liquid Pipe Inch 1/4 1/4 1/4 1/4

Outer Diameter Gas Pipe Inch 3/8 3/8 1/2 1/2

Max Distance Height ft. 32.8 32.8 32.8 32.8

Max Distance Length ft. 49.2 49.2 82 82

Refrigerant Metering Device Type Capillary Capillary Capillary Electronic Expansion Valve

FIGURE 6: Typical System Components

E

G

HTAPE

L

REFRIGERANT LINE SET, CONDENSATE LINE

AND INDOOR / OUTDOOR CABLE

RETURN AIR

B

C

D

K

SUPPLY AIR

A

D DISPLAY

INDICATORS

COOL

DRY

FAN

HEAT

RUN

TEMPERATURE SETTING

INDOOR AMBIENT TEMPERATURE

OR ERROR CODE

NOTE:

Temperature can be

displayed in either fahrenheit or celsius.

F

IMPORTANT:

The refrigerant metering device for this

system is located in the outdoor unit.

This makes it necessary to insulate the

refrigerant lines individually to prevent

sweating.

UTILITY

BUNDLE

WIRELESS REMOTE

CONTROL

OUTDOOR UNIT

(AIR CONDITIONER

OR HEAT PUMP)

AIR IN

AIR OUT

OUTDOOR UNIT

TERMINAL BLOCK

TO INDOOR

UNIT

TO POWER

SUPPLY

ACCESS COVER FOR

SERVICE VALVES

(-18, -24 AND -30 ONLY)

2-WAY SHUT-OFF VAVLE

2-WAY SUCTION / VAPOR LINE SERVICE

VALVE (FLARE CONNECTION)

H

J

A. Remote control

B. Front Panel

C. Filters

D. Guide louver with display

E. Line set (wrapped in foam insulation)

F. UV-rated tape (field-provided)

G. Wiring (field-provided)

H. Condensate drain line (field-provided)

(wrapped in foam insulation). Recommend

installation of a vent when making long

horizontal runs on condensate line.

I. 2-way suction / vapor line service valve

and 2-way shut-off valve.

J. Access cover for power and control wiring

connections.

K. Indoor unit wiring connections (under access plate).

L. Communication cable (30 kBtu system only)

INDOOR UNIT

I

898149-UIM-C-0114


SECTION VIII: UNIT DIMENSIONS

FIGURE 7: Indoor Unit Mounting Brackets with Weights & Dimensions

5.0 21.6 3.709K 12K

7.221.35.518K

7.627.05.124K

A

C

B

TABLE 7: Indoor Unit Dimensions

Model Size A B CUnit Gross Weight

Air Conditioner Heat Pump

09K30.3 (770) 7.9 (201) 11.1 (282)

25 lbs (11.5 kg) 25 lbs (11.5 kg)

12K 27 lbs (12 kg) 27 lbs (12 kg)

18K 34.1 (866) 8.5 (216) 12.0 (305) 35 lbs (16 kg) 35 lbs (16 kg)

24K 39.7 (1008) 8.7 (221) 12.4 (315) 44 lbs (20 kg) 44 lbs (20 kg)

FIGURE 8: Outdoor Unit Weights & Dimensions

BA

C

GD

E F

TABLE 8: Outdoor Unit Dimensions

Model Size A B C D E F G

Unit Gross Weight

Air Conditioner

Heat Pump

09K28.0 (711) 12.5 (318) 21.7 (551) 11.8 (300) 10.8(274) 25.9 (658) 18.5 (470)

73 lbs (33 kg) 73 lbs (33 kg)

12K 77 lbs (35 kg) 77 lbs (35 kg)

18K37.9 (963) 15.6 (396) 27.6 (701) 14.4 (366) 13.4 (340) 35.0 (889) 22.0 (559)

115 lbs (52 kg) 117 lbs (53 kg)

24K 123 lbs (56 kg) 126 lbs (57 kg)

898149-UIM-C-0114


SECTION IX: TORQUE REQUIREMENTS FOR CAPS AND FASTNERSWhen servicing or repairing HVAC components, ensure the fastenersare appropriately tightened. The table below provides torque values forfasteners.

SECTION X: INDOOR UNIT MOUNT INSTALLATIONINSTALLING THE WALL MOUNTING BRACKETDetermine that the wall will support the weight of the indoor unit. Referto system specifications for indoor unit weight. Install the wall mountingbracket and make sure it's positioned horizontally and vertically. Theindoor unit must be installed level on the wall to allow proper conden-sate drainage.

1. Determine the best exit location for utility bundle (line set, conden-sate line and wiring).

2. Use the wall mounting bracket as a template to determine the exitpoint for utility bundle. Use a carpenter's level or tape measure toverify the wall mounting bracket is horizontally level and mark theboring points on the wall. See Figure 9.

3. Prior to making the hole and installing wall sleeve for the utility bun-dle, check to ensure that neither studs nor plumbing are directlylocated behind the hole location.

4. Secure the wall mounting bracket to the wall using the providedscrews. If possible, align the rear panel screw holes with wall studlocations marked on the wall. Make sure you use as many screwsinto studs as possible. All other screws must be secured using plas-tic wall anchors. See Figure 10.

5. If the wall is made of brick, concrete or other similar material, thendrill pilot holes in the wall. Insert field-provided anchors for mount-ing screws. See Figure 10.

WALL HOLE DRILLINGBe sure to caulk the gaps around the pipes with caulking material toprevent water leakage.

1. Determine the wall hole position.

2. Drill a 2-1/2 inch diameter hole in the wall. The hole should beslightly downward slant 3/16” to 3/8” (5 to 10 mm) lower than theindoor side.

3. Measure the thickness of the wall from inside to outside edges andcut field-provided PVC pipe at a slight angle 1/4” (6mm) shorterthan the thickness of the wall.

4. Place a field-provided plastic cover on the outside end of the PVCpipe and insert the pipe in the wall hole.

5. After completing refrigerant piping, wiring, and drain piping, caulkpipe hole gap with putty.

TABLE 9: Caps and Fasteners Torque Requirements

Parts

Recommended Torque

English(ft. - lb.)

Metric (Newton Meter)

Service valve cap 8 ft. - lb. 11

Sheet metal screws 16 ft. - lb. 2

Machine screws #10 27 ft. - lb. 3

Compressor bolts 7 ft. - lb. 10

Gauge port seal cap 8 ft. - lb. 11

Only use Allen wrenches of sufficient hardness (50Rc - RockwellHardness Scale minimum). Fully insert the wrench into the valvestem recess.Service valve stems are factory-torqued (from 9 ft-lbs for smallvalves, to 25 ft-lbs for large valves) to prevent refrigerant loss duringshipping and handling. Using an Allen wrench rated at less than50Rc risks rounding or breaking off the wrench, or stripping the valvestem recess.

It is important to use all screws provided to secure the wall mountingbracket to the wall. Additional holes may be drilled through the metalwall mounting bracket to better secure wall bracket to wall studs.

FIGURE 9: Mounting Bracket Spots

FIGURE 10: Masonry Applications

FIGURE 11: PVC Wall Sleeve Installation

NOTICE

Mark on the middle of it

5.9inch

Left

Space

to the

wall

above

Right

Space

to the

wall

above

5.9inch

WALL WALLLEVELING DEVICE

(REAR PIPING HOLE)(REAR PIPING HOLE)

DRILL PILOT HOLES

USE ANCHORS

INSTALL ANCHORS

INSIDE OUTSIDE

CAULKING

2.2”

WALL PIPE

898149-UIM-C-0114


SECTION XI: INDOOR UNIT WIRING CONNECTIONS

1. Remove the front panel.

2. Open the front panel upward and pull it toward you.

3. Remove the terminal cover and cord clamp.

4. Insert the connecting cable (according to local codes) into the pipehole on the wall. See Figures 11 and 12.

5. Pull the connecting cable through the cable slot on the rear case sothat it protrudes about 6 inches (~15 cm) out of the front.

6. Connect the ground wire to the ground terminal of electrical box.

7. Insert the connecting cable fully into the terminal block and secure itwith screws while making sure no part of its core is visible. Makesure you don't mis-wire the unit. See Figure 13.

8. Firmly tighten the terminal screws to prevent them from gettingloose.

9. Secure the connecting cable with the cord clamp.

10. Attach the terminal cover and front panel on the indoor unit.

SECTION XII: PIPE FORMING AND DRAIN PIPING

PIPE FORMINGInterchange the drain cap and the drain hose.

1. Place the drain hose below the refrigerant piping.

2. Make sure the drain hose is not bent or kinked.

3. Do not pull the hose when applying the tape.

4. When the drain hose passes the room, be sure to wrap field-pro-vided insulation material around it.

When the indoor unit is powered from the outdoor unit, a dis-connect switch needs to be installed to power supply circuitbetween indoor and outdoor units depending on local codes.

Mis-wiring could damage unit or cause communication errorsbetween indoor and outdoor unit.

TABLE 10: Wire Color Reference

Color Code ColorColor Code or

SymbolColor

WH White BN Brown

YE Yellow BU Blue

RD Red BK Black

YEGN Yellow Green

FIGURE 12: Indoor Unit Wall Mounting Bracket

NOTICE

WALL

WIRING

FIELD PROVIDED

PVC WALL SLEEVE

Be sure to refer to the wiring system diagram labeled inside the frontpanel.Check local electrical regulations for any specific wiring instructionsor limitations.

FIGURE 13: Indoor Electrical Wiring Connections

FIGURE 14: Drain Piping Outlets Option

GROUND

WIRE

TERMINAL BLOCK

TERMINAL COVER

SCREW

SCREW

CORD CLAMP

CONNECTING CABLE

TERMINAL BLOCK

YELLOW-GREEN

BLUE

BROWN

BLACK

CONNECTING

CABLE

ABOUT 5.9”

2.8”

0.39”GROUND

LINE

0.39”

1.97”

RIGHT

REAR RIGHT

RIGHT DOWNWARD REAR LEFT

LEFT DOWWARD

LEFT

898149-UIM-C-0114


5. In the case of bending refrigerant piping, keep the following precau-tions in mind to avoid abnormal sounds that may be generated ifimproper work is conducted.

a. Do not press the refrigerant pipes onto the bottom frame.

b. Do not press the refrigerant pipes on the front grille.

RIGHT OR RIGHT REAR PIPINGFor Right Side Utility Bundle Exit - Cut out the corner of the right/leftplastic cabinet with a hacksaw or similar tool. See Figure 16.

1. Put the refrigerant piping and the drain hose together. Positionthem to the left side and then firmly apply piping tape from the end.

2. Insert the drain hose into field-provided PVC sleeve and hook theupper part of the indoor unit on the wall mounting bracket.

3. Check if the indoor unit is hooked securely on the wall mountingbracket by trying to move the unit left and right.

4. Thrust the lower part of the indoor unit into the wall mountingbracket.

LEFT OR LEFT REAR PIPINGFor Left Side Utility Bundle Exit - Cut out the corner of the right/leftplastic cabinet with a hacksaw or similar tool. See Figures 16 and 18.

Make sure you reattach the drain hose and the drain cap in case of leftor right rear piping. Otherwise, it could cause drops of water to drip fromthe drain hose.

1. Put the refrigerant piping and the drain hose together then firmlyapply felt tape from the end.

2. Pull out the drain cap at the rear right of the indoor unit.

3. Pull out the drain hose at the rear left of the indoor unit.

4. Put the drain cap into the section to which the drain hose is to beattached at the rear of the indoor unit.

5. Insert the drain hose fully into the drain pan at the rear right of theindoor unit.


REAR OR DOWNWARD PIPING1. Put the refrigerant piping and the drain hose together then firmly

apply felt tape from the end. Use bandage stopper at the end of felttape.


FIGURE 15: Proper and Improper Drain Piping

FIGURE 16: Left or Right Side Exits

FIGURE 17: Right or Right Rear Piping

SLIT

RIGHT

PIPING

BOTTOM

PIPING

BIND WITH VINYL TAPE

PIPE (TOP) REAR PIPING

INDOOR UNIT

DRAIN HOSE (BOTTOM)

FIGURE 18: Left or Left Rear Piping

INDOOR UNIT

DRAIN HOSE

DRAIN CAP

FOR LEFT OUTLET

PIPING, CUT OFF

THE PIPING OUTLET

CUTTING GROOVE

WITH A HACKSAW

REMOVE DRAIN

CAP BY PULLING

AT THE PROJECTION

AT THE END OF THE

CAP WITH PLIERS, ETC.

How to replace the drain plug and drain hose

• How to remove the drain cap

Clamp drain cap with needle-nose pliers, and pull out.

• How to remove the drain hose

The drain hose is secured in place by a screw.

Remove the screw securing the drain hose, then

pull out the drain hose.

• How to attach the drain cap

1. Insert hexagonal wrench (0.16inch).

2. Firmly insert drain cap.

• How to attach the drain hose

secure it in place using the original screw.

Do not apply lubricating oil(refrigerant machine oil) wheninserting the drain cap. If applieddeterioration and leakage of thedrain plug may occur.

Insert a hexagon wrench(4 mm)

No gap

Drain Hose

0.16”

Insulation

fixing screw

898149-UIM-C-0114


DRAIN PIPING• If the extension drain hose has to pass through a room, make

sure it's wrapped with commercially sold insulation.• The drain hose should point downward for easy drain flow.• If the drain hose provided with the indoor unit is too short, make

sure you connect it with a field-provided drain hose.• When connecting the drain hose to the hard vinyl chloride pipe,

make sure it's inserted securely into the pipe.

DRAIN HOSE JUNCTION• If drain hose extension or embedded drain piping is required, use

appropriate parts that match the hose front end. See Figure 18.• Insert drain hose into the handle of drain pan, and join drain hose

and connecting hose according to Figure 19.• Attach the Insulation (Drain hose) to the drain hose. See Figure

20.

SECTION XIII: FLARING WORK AND PIPING CONNECTIONSFLARING WORKMain cause for refrigerant leakage is due to defect in the flaring work.Carry out correct flaring work using the following procedure.

1. Measure the distance between the indoor and outdoor units.

2. Cut the copper pipe about 6 to 8 inches (15 to 20 cm) longer thanthe measured distance with a pipe cutter.

3. Use a pipe reamer or file to completely remove all burrs from thecut cross section of the pipe.

a. Put the end of the copper pipe in a downward direction to avoidhaving burrs drop in the piping.

4. Remove flare nuts attached to indoor and outdoor units then putthem on pipes that have completed burrs removal (not possible toput them on after flaring work).

5. Use a flaring tool to perform flaring work at the end of the copperpipe. Use the table below as a guideline when performing flaringwork.

6. Check your flaring work and if it's found to be defective, cut off thedefective flare section and redo number 5.

1. In order to align the drain hose and drain cap, be sure to insertsecurely and vertically. Incline insertion will cause water leak-age.

2. After removing drain hose, be sure not to forget mounting draincap.

3. Be sure to fix the drain hose with tape to the bottom of piping.4. Prevent drain water from freezing in low temperature environ-

ment.When installing indoor unit’s drain hose outdoors, necessary mea-sure for frost protection should be taken to prevent drain waterfreezing.

• Under low temperature environment (when outdoor tempera-ture under 32 °F), after cooling operation is executed, water inthe drain hose could be frozen.

• Once drain water is frozen, the drain hose will be blocked andwater leakage may result from indoor unit.

FIGURE 19: Drain Hose Extension

FIGURE 20: Drain Hose Insulation

Insert the drain hose and drain cap into the drain port, making surethat it comes in contact with the back of the drain port, and thenmount it. If the drain hose is not connected properly, leaking willoccur.

SHIELD PIPE

DRAIN HOSEINSIDE THE ROOM

EXTENSION

DRAIN HOSE

DRAIN HOSE

INSULATION (DRAIN HOSE)

FIGURE 21: Pipe Cutting Approved Method

FIGURE 22: Deburring Line Set

FIGURE 23: Flaring Tools

FIGURE 24: Proper and Improper Flaring

COPPER

PIPE

SLANTED UNEVEN ROUGH90°

PIPE

REAMER

POINT DOWN

"A"

BAR

HANDLE

YOKE

CONE

RED ARROW MARKCLAMP HANDLE

COPPER PIPE

BAR

Outside Dia.

Inch

0.24

0.37

0.47

0.63

0.75

A

Inch

0~0.02

~0.02

~0.02

~0.04

~0.05

0

0

0

0.04

SMOOTH ALL ROUND

INSIDE IS SHINY WITHOUT SCRATCHES

= IMPROPER FLARING =

EVEN LENGTH

ALL ROUND

INCLINED SURFACE

DAMAGED

CRACKED UNEVEN

THICKNESS

898149-UIM-C-0114


7. When flaring is complete, align the center of the pipes and suffi-ciently tighten the flare nut by hand.

8. Tighten the flare nut using a wrench.

SECTION XIV: INDOOR UNIT INSTALLATION1. Shape the refrigerant line set so that it can be guided either out the

back of the indoor unit or through either side of the indoor unitframe, then through the wall sleeve to the outside unit.

2. Pass the drain hose and refrigerant pipes through the wall hole thenset the indoor unit on the mounting bracket hooks by using themarkings at the top of the indoor unit as a guide.

3. Try moving the indoor unit to right and left to confirm that it is firmlyhooked on the installation plate.

4. While pressing the indoor unit onto the wall, hook it at the lower parton the installation plate.

5. Carefully bend the bundle (line set, condensate line and cable) torun along the outside wall toward the outdoor unit. Downward slopeof wall sleeve will ensure proper condensate drainage.

Pull the indoor unit toward you to confirm that it is firmly hookedon the mounting bracket.

For detaching the indoor unit from the installation plate, pull the indoorunit toward you while pushing the bottom up at the specified places.

6. Use the provided foam insulation to wrap the factory installed con-densate line.

7. Connect indoor unit factory installed condensate line to field-pro-vided condensate drain pipe.

8. Use tape approved for waterproofing line connections to secure thefield-provided pipe to the factory-installed condensate line.

9. Put water in the drain pan and make sure that the water is beingdrained outside.

SECTION XV: OUTDOOR UNIT INSTALLATIONRefer to page 4 instructions when considering unit positioning and page4 for condensate drainage requirements (heat pump).

SLAB OR ROOF MOUNTING• Install the unit a minimum of 4 inches (102 mm) above the roof or

ground surface to avoid ice build-up around the unit.• Locate the unit above a load bearing wall or area of the roof that

can adequately support the unit.• Consult local codes for rooftop applications.

It is permissible to use a drop of PVE refrigerant oil to lubricate theface of the flare to prevent twisting or flare leakage.

FIGURE 25: Connections at Indoor Unit

FIGURE 26: Flare Nuts Tightening

TABLE 11: Flare Nut Torque Recommendations

Outside Diameter

Recommended Torque

Inches mmEnglish(ft. - lb.)

Metric (Newton Meter)

1/4” 6.35 15 ft - lb. 20

3/8” 9.52 26 ft - lb. 35

1/2” 12.70 41 ft - lb. 55

5/8” 15.88 48 ft - lb. 65

FIGURE 27: Indoor Unit Attachment to Mounting Bracket

NOTICE

INDOOR UNIT TUBING FLARE NUT PIPES

WRENCH

INDOOR UNIT TUBING

OPEN-END WRENCH (FIXED)

FLARE NUT

CONNECTION PIPE

A MOUNTING PLATE

MARKING

FIGURE 28: Proper and Improper Drain Hose Installation Application

FIGURE 29: Indoor Unit Removal

Install the drain pipe for proper drainage. Improper drainage canresult in water dripping inside the room.

DO NOT RISE THE DRAIN HOSE DO NOT FORM THE DRAIN HOSE

INTO THE WAVED SHAPE

50 mm

OR MORE

DO NOT PUT THE

DRAIN HOSE END

INTO WATER

DO NOT PUT THE DRAIN

HOSE END IN THE

DRAINAGE CONTAINER

PUSHPUSH

898149-UIM-C-0114


SECURING OUTDOOR UNIT TO SLAB OR FRAMEIf the outdoor unit is installed on a field-provided slab or frame, use lagbolts or equivalent to secure the outdoor unit to the slab or frame.

SECTION XVI: OUTDOOR UNIT WIRING CONNECTIONS

1. Remove outdoor unit access panel.

2. Route all wiring to outdoor unit through the wire routing plate.

3. Connect the control wiring and power supply wiring to the outdoorunit wiring terminals according to the figures shown in this section.

4. The unit must be grounded according to local codes.

5. Fasten the power supply cord and control wiring with cord clamp.

6. Secure wiring using built-in wire strain relief.

7. Install the outdoor unit access panel back.

FIGURE 30: Outdoor Unit Installation

This system contains both refrigerant and oil. Some rubber roofingmaterial may absorb oil. This will cause the rubber to swell when itcomes into contact with oil. The rubber will then bubble and couldcause leaks. Protect the roof surface to avoid exposure to refrigerantand oil during service and installation. Failure to follow this noticecould result in damage to roof surface.

FIGURE 31: Outdoor Unit Slab or Frame Installation

In the United States, wiring must conform with current local codesand the current National Electric Code (NEC). In Canada, wiringmust conform with current local codes and the current CanadianElectrical Code (CEC).The main system circuit breaker or disconnect should be sized perunit requirements and should be installed adjacent to outdoor unit.

Mis-wiring could damage unit or cause communication errorsbetween indoor and outdoor unit.

BUILDING STRUCTURE

GROUND

LEVEL

Install unit level or maintain slope tolerance of 2 degrees

( or 2 inches per 5 feet [50 mm per 1.5 m] away from building structure.

NOTICE

FOUR FIELD PROVIDED ANCHOR BOLTS

• Refer to unit nameplate for minimum circuit ampacity and maxi-mum overcurrent protection size

• Local codes may require a disconnect between the indoor and out-door units

• The main system circuit breaker and outdoor unit disconnectswitch should be sized per local codes and unit requirements

• Stranded wire is recommended for use to connect the outdoor unitto the indoor unit. The stranded wire helps to ensure proper systemcommunication and operation.

• Make sure you use an approved circuit breaker or switch

Model Fuse or Circuit Breaker Capacity

9K & 12K 15A

18K & 24k 25A

FIGURE 32: Outdoor Unit Electrical Connections

FIGURE 33: Outdoor Unit Wiring Terminal Designations

NOTICE

ROUTE WIRES

THROUGH

ROUTING

PLATEACCESS PLATE

cord clamp

cord clamp

power supply cordconnection cord

N(1) 2 3 L1 L2 G

power supply cordconnection cord

09K 12K 18K 24K

HANDLE

TERMINAL BLOCK

HANDLE

TERMINAL BLOCK

LOCK NUT

CONDUIT

FINISH

898149-UIM-C-0114


SECTION XVII: REFRIGERANT PIPING CONNECTIONSSERVICE PORT AND VALVE STEM CAPSA Service port cap protects the service port core from contaminationand serves as the primary leak seal. Access service port as follows:

1. Remove service port cap with an appropriate sized wrench.

2. Connect gauge set to service port.

3. When testing is complete, replace service port cap and tighten asfollows:

a. With torque wrench - Finger tighten, and torque cap per Table 9requirements.

b. Without torque wrench - Finger tighten, and then use appropri-ate sized wrench to turn an additional 1/6 turn clockwise.

4. A stem cap protects the valve stem from damage and serves as theprimary seal. Replace the stem cap and tighten as follows:

a. With torque wrench - Finger tighten, and torque cap per Table 9requirements.

b. Without torque wrench - Finger tighten, and then use appropri-ate sized wrench to turn an additional 1/12 turn clockwise.

INDOOR UNIT CONNECTION

• Connect both liquid and gas pipes to indoor unit.• Apply a sealing cap or water-proof tape to prevent dust or water

from getting into the refrigerant piping before it is connected.• Apply a thin coat of refrigerant oil on the seal surface of the pipe.• For connection, first align the union tube and flared refrigerant

line with each other then tighten the flare nuts lightly at first toobtain a smooth match.

• Use tightening toque Table 11 as a guideline for indoor unit sideunion joint section and tighten using two wrenches. Excessivetightening may damage the flare section.

OUTDOOR UNIT CONNECTION• Apply a sealing cap or water proof tape to prevent dust or water

from getting into the refrigerant piping before it is connected.• Apply refrigerant lubricant to the matching surfaces of the flared

line set and union before connecting them together. This willreduce refrigerant leaks.

• Align the flared refrigerant line with valve connection then tightenthe flare nut lightly at first to obtain a smooth match. Use tighten-ing toque Table 11 as a guideline.

INSULATION AND TAPING1. Cover piping joints with pipe cover.

2. For outdoor unit, insulate every pipe including all pipe joints.

3. Using piping tape, apply taping starting from entry of outdoor unit.

a. Stop the end of piping tape with tape that has an adhesive agentattached.

b. When pipes have to be arranged through above ceiling, closet orwhere temperature and humidity are high, make sure you windadditional commercially sold insulation to prevent sweating.

4. An optional field-provided exterior wall channel may be used in lieuof taping the utility bundle to protect the bundle from UV rays,weather, etc. See Figure 37.

• Fasten flare nut with a torque wrench as specified in Table 11.• When fastened too tight, flare nut may break after a long period

and cause refrigerant to leak.

FIGURE 34: Indoor/Outdoor Piping Connections

NOTICE

MALE FLARE

CONNECTION

APPLY REFRIGERANT

LUBRICANT HERE

A

B

FIGURE 35: Outdoor Line Set Connections

FIGURE 36: Line Set Connection Insulation and Taping

FIGURE 37: Utility Bundle

OUTDOOR UNIT

LIQUID SIDE PIPING

(SMALLER DIAMETER)

TORQUE WRENCH

GAS SIDE PIPING

(BIGGER DIAMETER)

PLASTIC BANDSINSULATION MATERIAL

CONNECTION

PIPE

VINYL TAPE

(WIDE)

INDOOR

UNIT PIPE

WRAP WITH VINYL TAPE

WRAP WITH VINYL TAPE

PIPE

DRAIN HOSE

VINYL TAPE (WIDE)

INDOOR UNIT

CONNECTING

CABLE

AUXILIARY PIPES

INSTALLATION

PLATE

898149-UIM-C-0114


SECTION XVIII: PURGING PROCEDURE, LEAK TEST AND TEST RUNSERVICE VALVESThe outdoor unit 3-way suction/vapor service valve is used to purge air,test for leaks, check operating pressures and add refrigerant to system.This valve is equipped with a service port which has a factory installedvalve core. Figure below provides information on how to access andoperate the 3-way suction/vapor service valve and the 2-way liquidshut-off valve.

After the piping has been connected to the indoor unit, the leak test andthe air purge procedures are to be accomplished.

LEAK TEST PRIOR TO SYSTEM EVACUATION

Air and moisture remaining in the refrigerant system will have undesir-able effects as indicated below:

1. Pressure in the system rises.

2. Operating current rises.

3. Cooling or heating efficiency drops.

4. Moisture in the refrigerant circuit may freeze and block capillarytubing (30 kBtu size only).

5. Water may lead to corrosion of parts in the refrigeration system.

Use the following procedure to test for system leaks:

1. Connect the manifold gauge set and dry nitrogen gas cylinder to thesuction/vapor service port. See Figure 40 for pressure gage mani-fold connection (the nitrogen gas cylinder will be connected to thepressure gage manifold instead of the vacuum pump).

2. Open valve on nitrogen cylinder.

3. Pressurize the system up to 550 PSIG with dry nitrogen.

FIGURE 38: Exterior Wall Utility Cover (Optional)

FIELD PROVIDED PROTECTIVE

CHANNEL (UTILITY BUNDLE INSIDE)

Action2-way Liquid

Shut-off Valve3-way Suction/Vapor

Service Valve

Evacuating with a vacuum pump

Outdoor unit running

Checking pressure and adding refrigerant

FIGURE 39: Service Valve Operation

SERVICE PORT ON

3-WAY VALVESUCTION/VAPORHOSE WITH

SCHRADER VALVE

PUSH

REQUIRES FIELD PROVIDED 5/16” FEMALE

FLARE TO 1/4” MALE FLAREADAPTER.

VALVE CAPOPEN POSITION

CLOSED POSITION

SCHRADER CORE

FLARE CAP

FROM LINE SET

SERVICE

PORT CAP

SERVICE

PORT

TO OUTDOOR UNIT

FLARE CAP

ALLEN WRENCH (5MM)

OPEN POSITION

CLOSED POISTION

FROM OUTDOOR UNIT

TO LINE SET

2-WAY LIQUID

SHUT-OFF VALVE

3-WAY SUCTION/VAPOR

SERVICE VALVE

CLOSED

FULLY

OPEN

FULLY

OPEN

The line set between the indoor and outdoor units must be leak testedand evacuated to remove any non-condensable and moisture from thesystem.

NOTICE The packed valves on the outdoor unit must remain in the closed posi-tion during the nitrogen leak test and the evacuation process. The lineset from the outdoor unit to the indoor unit and the evaporator coil onthe indoor unit can be nitrogen charged or evacuated through theschrader valve service port on the outdoor unit. However, both of thepacked valve stems on the outdoor unit must remain closed during theprocess to ensure that the outdoor unit keeps the factory pre-chargedrefrigerant stored until the system is ready to be charged.

NOTICE

898149-UIM-C-0114


4. Check for leaks using Refrigerant Gas Leak Detector spray.

5. After the system is found to be free of leaks:

• Close valve on nitrogen cylinder• Relieve the nitrogen pressure by: loosening the charge hose con-

nector at the nitrogen cylinder.• When the system pressure is reduced to atmospheric pressure,

disconnect the hose from the cylinder.

VACCUM AIR PURGING AND SYSTEM CHARGING

1. Run the vacuum pump.

2. Connect the charge hose from the manifold valve to the service portof the gas side packed valve.

3. Connect the charge hose to the port of the vacuum pump.

4. Open fully the low pressure side handle of the gauge manifoldvalve.

5. Operate the vacuum pump to begin evacuation of the system.

6. Allow the pump to operate until the system has been evacuateddown to 300 microns. Allow the pump to continue running for anadditional 15 minutes.

7. Turn off the pump and leave the connection secured to the suction/vapor 3-way service port. After five minutes, if the system fails tohold 500 microns or less, check all connections for tight fit andrepeat the evacuation procedure.

8. Close the low pressure valve handle of the pressure gauge mani-fold to complete the evacuation process.

9. Unscrew and remove the caps from the 2-way liquid shut-off valvestem and from the 3-way suction/vapor valve stem.

10. Charge the system by opening fully each valve stem of the packedvalves (both the gas and the liquid sides).

11. Remove the charging hose from the service port.

12. Securely tighten the caps on the packed valves. See Table 9 forproper torque.

ADDING REFRIGERANT FOR LONGER LINE SET1. Open the low side manifold gauge valve and weigh in liquid refriger-

ant. Use Table 6 to calculate the correct weigh-in charge.

2. Close manifold gauge valves.

LEAK TEST AFTER SYSTEM CHARGEDCheck for leaks using an electronic refrigerant leak detector and/orRefrigerant Gas Leak Detector spray. See figure 41.

SECTION XIX: TEST OPERATION1. Check that all tubing and wiring have been properly connected.

2. Check that the gas and liquid side service valves are fully open.

GAS LEAK TESTCheck the flare nut connections for gas leaks with an electronic refriger-ant leak detector and/or Refrigerant Gas Leak Detector spray.

RUNNING TEST1. Turn power on by pressing “ON/OFF” button on the wireless remote

control to start system operation.

2. Press MODE button to select COOL, HEAT or FAN to check thesystem operation.

INDOOR UNIT RUNNING TEST1. Check if operation of each button on the remote control is working

normally and check the corresponding operating indication LED onthe indoor unit to make sure they match.

2. Check the operation of indoor unit louver and make you check itsswinging function.

3. Check the condensate drain and make sure there are no leaks.

OUTDOOR UNIT RUNNING TEST1. Make sure there are no abnormal noises or vibration during opera-

tion.

2. Make sure you check for gas leaks.

Use a vacuum pump with counter-flow prevention function to ensure oilinside the pump does not flow back into the system pipes when thepump stops.

The operation time for evacuation varies with the lineset length andcapacity of the pump.

FIGURE 40: Gauge Set Connections for Leak Test, Evacuation and Charging

NOTICE

NOTICE

COMPOUND

PRESSURE

GAUGE

PRESSURE GAUGE

-101kPa

(-76cmHg)

HANDLE LOW

MANIFOLD VALVE

HANDLE HIGH

(KEEP FULL

CLOSED)

CHARGE HOSE

CHARGE HOSE

CONNECTING

PIPE

PACKED VALVE

AT LIQUID SIDE

VACUUM PUMP

ADAPTER FOR

COUNTER-FLOW

PREVENTION

PACKED VALVE AT GAS SIDE

SERVICE PORT

SCHRADER CORE

VACUUM

PUMP

FIGURE 41: Leak Test Line Set Connection

CHECK PLACES FOR

FLARE NUT CONNECTIONS

(INDOOR UNIT)

CHECK PLACES

FOR OUTDOOR UNIT

898149-UIM-C-0114


SECTION XX: EMERGENCY OPERATIONIf the wireless remote is lost or damaged, the system can be operatedusing the manual switch or code switch. The system will run in AutoRun mode, and will not change the temperature setting nor the fanspeed.

The manual switch can be operated as follows:

• To operate the unit, press the AUTO/STOP button once and theunit will enter into AUTO RUN mode. The microcomputer willselect the (COOL, HEAT, FAN) mode automatically to maintainoptimum room comfort.

• To stop the unit from operating, press the AUTO/STOP buttononce and the unit will shut down.

The code switch can be operated as follows:

• To operate the unit, adjust the code switch to the AUTO positionand the unit will enter into AUTO RUN mode. The microcomputerwill select the (COOL, HEAT, FAN) mode automatically to main-tain optimum room comfort.

• To stop the unit from operating, adjust the code switch to theSTOP position and the unit will shut down.

SECTION XXI: MAINTENANCEOUTDOOR UNIT1. Ensure power is off before cleaning.

2. It may be necessary to wash the outdoor coil more frequently if it isexposed to substances which are corrosive or which block airflowacross the coil (e.g., pet urine, cottonwood seeds, fertilizers, fluidsthat may contain high levels of corrosive chemicals such as salts).

3. Outdoor Coil (Sea Coast) - Moist air in ocean locations can carrysalt, which is corrosive to most metal. Units that are located nearthe ocean require frequent inspections and maintenance. Theseinspections will determine the need to wash the unit including theoutdoor coil. Consult your installing contractor for proper intervals/procedures for your geographic area or service contract.

4. Outdoor unit fan motor is pre-lubricated and sealed. No furtherlubrication is needed.

5. Visually inspect all connecting lines, joints and coils for evidence ofoil leaks.

6. Check all wiring for loose connections.

7. Check for correct voltage at unit (with unit operating).

INDOOR UNIT1. Clean or change filters.

2. Check all wiring for loose connections.

3. Check for correct voltage at unit (blower operating).

4. Clean coil, if necessary.

5. Check connecting lines and coils for signs of oil leaks.

6. Check condensate line and clean, if necessary.

SECTION XXII: INSTALLATION AND MAINTENANCE OF HEALTHY FILTER (ACCESSORY)INSTALLATION OF HEALTHY FILTER (ACCESSORY)1. Lift up the front panel from its two ends and remove the factory sup-

plied air filter as shown in Fig. A.

2. Attach the healthy filter to the air filter as shown below in Fig. B.

3. Install the air filter properly as shown below in Fig. C and then closethe panel.

CLEANING AND MAINTENANCE1. Remove the healthy filter and clean thoroughly. Make sure you

don't use a brush or any hard objects to clean the filter.

2. Make sure you dry the air filter before reinstalling it.

SECTION XXIII: TYPICAL UNIT WIRING DIAGRAMThe indoor unit wiring diagram is located on the inside of the cabinet bythe terminal block. It is necessary to remove the front panel from theunit to see the diagram. The outdoor unit wiring diagram is located onthe underside of the outdoor unit control access cover.

The TEST button is for the technicians' testing, which should not beused by our user.

FIGURE 42: Emergency Operation

NOTICE

MANUAL SWITCH

AUTO/STOP

CODE SWITCH

AUTO

TEST

RUN

STOP

The filter must be in place and the front panel must be closed anytime the unit is in operation.

FIGURE 43: Filter Replacement

NOTICE

AIR FILTER

HEALTHY FILTER

Fig. A

Fig. B

Fig. C

898149-UIM-C-0114


FIGURE 44: 09K & 12K Outdoor Air Conditioners

FIGURE 45: 09K & 12K Indoor Air Conditioners

898149-UIM-C-0114


FIGURE 46: 18K & 24K Outdoor Air Conditioners

FIGURE 47: 18K & 24K Indoor Air Conditioners

898149-UIM-C-0114


FIGURE 48: 09K & 12K Outdoor Heat Pumps

FIGURE 49: 09K & 12K Indoor Heat Pumps

898149-UIM-C-0114


FIGURE 50: 18K & 24K Outdoor Heat Pumps

FIGURE 51: 18K & 24K Indoor Heat Pumps

18K 24K

898149-UIM-C-0114


SECTION XXIV: INDOOR AND OUTDOOR UNITS ERROR CODESThis section identifies error codes that appear on the front panel of the indoor unit or outdoor unit control. Many of the error codes will automaticallyclear themselves when the error no longer exists. However some error codes may require disconnecting power to the system at the unit disconnectswitch or circuit breaker in order to clear them and to resume normal system operation.

FIGURE 52: Indoor Unit Front Panel Indicators

72

HE

AT

IND

ICA

TO

R

CO

OL

IND

ICA

TO

R

TE

MP

ER

AT

UR

E*

RU

N

DE

HU

MID

IFY

MO

DE

INF

RA

RE

D

SIG

NA

L

RE

CE

IVE

R

* The temperature readout (either

temperature setpoint or indoor ambient)

will be replaced by an error code if there

is a malfunction. If multiple errors are

detected, the display will alternate

between each error code.

NOTE:

No history is kept on past error codes.

FIGURE 53: Control Board

YELLOW LED

GREEN LED

RED LED

898149-UIM-C-0114


INDOOR UNIT ERROR CODESTABLE 12: Error Codes - 09K 12K

No. Malfunction

Name

Display Method of Indoor Unit Malfunction

A/C Status Possible CausesDual 8 Code

Display

Indicator Display (during blinking,

ON 0.5s and OFF 0.5s)

Indicator has 3 kinds of display status and during blinking, ON 0.5s

and OFF 0.5s

OperationIndicator

CoolIndicator

HeatingIndicator

YellowIndicator

RedIndicator

GreenIndicator

1

High pressure

protection of system

E1OFF 3s

and blink once

During cooling and drying operation, except indoor fan operates, all loads stop operation. During heating operation, the complete unit stops.

Possible reasons: 1. Refrigerant was super abun-dant; 2. Poor heat exchange (includ-ing filth blockage of heat exchanger and bad radiating environment); Ambient tempera-ture is too high.

2Antifreezing protection

E2OFF 3S and blink

twice

OFF 3Sand blink 3 times

During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates.

1. Poor air-return in indoor unit;2. Fan speed is abnormal;3. Evaporator is dirty.

3System block or refrigerant

leakageE3

OFF 3S and blink 3 times

OFF3Sand blink 9 times

The Dual-8 Code Display will show E3 until the low pressure switch stop operation.

1.Low-pressure protection 2.Low-pressure protection of system 3.Low-pressure protection of compressor.

4

High discharge

temperature protection of compressor

E4OFF 3S and blink 4 times


During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating operation, all loads stop.

Please refer to the ProficienTECH Ductless Splits Technical Training Manual (discharge protection, overload).

5Overcurrent protection




1. Supply voltage is unstable;2. Supply voltage is too low and load is too high;3. Evaporator is dirty.

6Communi-

cation Malfunction


OFF

During cooling operation, compressor stops while indoor fan motor operates. During heating operation, the complete unit stops.

Refer to the corresponding ProficienTECH Ductless Splits Technical Training Manual.

7

High temperature

resistantprotection



During cooling operation: compressor will stop while indoor fan will operate. During heating operation, the complete unit stops.

Refer to the ProficienTECH Ductless Splits Technical Train-ing Manual (overload, high temperature resistant).

8EEPROM

malfunctionEE

OFF 3S and blink15 times


During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop.

Replace outdoor control panel AP1.

9

Limit/decrease frequency due to hightemperature of module

EUOFF 3S and blink6 times


All loads operate normally, while operation frequency for compressor is decreased

Discharging after the complete unit is de-energized for 20 mins, check whether the thermal grease on IPM Module of outdoor control panel AP1 is suf-ficient and whether the radiator is inserted tightly. If its no use, please replace control panel AP1.

10Malfunction protection of jumper cap

C5OFF 3S and blink15 times

Wireless remote receiver and button are effective, but cannot dispose the related command.

1. No jumper cap insert on main board.2. Incorrect insert of jumper cap.3. Jumper cap damaged.4. Abnormal detecting circuit of main board.

11Gathering refrigerant

F0OFF 3S and blink1 times


When the outdoor unit receive signal of Gather-ing refrigerant, the system will be forced to run under cooling mode for gathering refrigerant

Nominal cooling mode

898149-UIM-C-0114


12

Indoor ambient

temperature sensor is

open/short circuited

F1OFF 3S and blink

once

During cooling and drying operation, indoor unit operates while other loads will stop; during heating operation, the complete unit will stop operation.

1. Loosening or bad contact of indoor ambient temp. sensor and main board terminal.2. Components in main board fell down leads short circuit.3. Indoor ambient temp. sensor damaged. (check with sensor resistance value chart).4. Main board damaged.

13

Indoor evaporator


open/short circuited

F2OFF 3S and blink

twice

AC stops operation once reaches the setting tem-perature. Cooling, drying: internal fan motor stops operation while other loads stop operation; heat-ing: AC stop operation

1. Loosening or bad contact of Indoor evaporator temp. sensor and main board terminal.2. Components on the main board fall down leads short circuit.3. Indoor evaporator temp. sensor damaged. (check temp. sensor value chart for testing).4. Main board damaged.

14

Outdoor ambient


open/shortcircuited

F3OFF 3S and blink 3 times


During cooling and drying operating, compressor stops while indoor fan operates; During heating operation, the complete unit will stop operation.

Outdoor temperature sensor hasn't been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor).

15

Outdoorcondenser


open/shortcircuited



During cooling and drying operation, compressor stops while indoor fan will operate; During heating operation, the complete unit will stop operation.

Outdoor temperature sensor hasn't been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor).

16

Outdoor discharge


open/shortcircuited



During cooling and drying operation, compressor will stop after operating for about 3 mins, while indoor fan will operate; During heating operation, the complete unit will stop after operating for about 3 mins.

1.Outdoor temperature sensor hasn't been connected well or is damaged. Please check it byreferring to the resistance table for temperature sensor).2.The head of temperature sensor hasn't been inserted into the copper tube.

17

Limit/decrease frequency

due tooverload

F6OFF 3S and blink

for 6 times


All loads operate normally, while operation frequency for compressor is decreased.

Refer to the ProficienTECH Ductless Splits Technical Train-ing Manual (overload, high temperature resistant)

18

Decreasefrequency

due toovercurrent


OFF 3S and blink

once


The input supply voltage is too low; System pressure is too high and overload.

19

Decreasefrequency due to high

air discharge


OFF 3S and blink

twice


Overload or temperature is too high; Refrigerant is insufficient; Malfunction of electric expan-sion valve (EKV).

20

Limit /decreasefrequency

due toantifreezing

FHOFF 3S and blink2 times




Poor air-return in indoor unit or fan speed is too low.

21Voltage for

DC bus-bar is too high

PHOFF 3S and blink11 times


During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.

1. Measure the voltage of posi-tion L and N on wiring board (XT), if the voltage is higher than 265VAC, turn on the unit after the supply voltage is increased to the normal range.2.If the AC input is normal, mea-sure the voltage of electrolytic capacitor C on control panel (AP1), if its normal, there is mal-function for the circuit, please replace the control panel (AP1).

TABLE 12: Error Codes - 09K 12K (Continued)

No. Malfunction

Name



Display




and OFF 0.5s

OperationIndicator

CoolIndicator

HeatingIndicator

YellowIndicator

RedIndicator

GreenIndicator

898149-UIM-C-0114


22Voltage of DC bus-bar is too

lowPL




1. Measure the voltage of posi-tion L and N on wiring board (XT), if the voltage is higher than 150VAC, turn on the unit after the supply voltage is increased to the normal range.2.If the AC input is normal, mea-sure the voltage of electrolytic capacitor C on control panel (AP1), if its normal, there is mal-function for the circuit, please replace the control panel (AP1).

23

Compressor Min

frequency in test state

P0Showing during min. cooling or min. heating test.

24

Compressor rated


P1Showing during nominal cooling or nominal heating test.

25

Compressor maximum


P2Showing during max. cooling or max. heating test.

26

Compressor intermediate frequency in

test state

P3Showing during middle cooling or middle heating test.

27

Overcurrent protection of phase

current for compressor

P5OFF 3S and blink15 times


Refer to the ProficienTECH Ductless Splits Technical Train-ing Manual (IPM protection, loss of synchronism protection and overcurrent protection of phase current for compressor.

28Charging

malfunction of capacitor

PUOFF 3S and blink17 times


Refer to the part three-charging ProficienTECH Ductless Splits Technical Training Manual of capacitor.

29

Malfunction of module

temperature sensor circuit




30Module hightemperature protection


During cooling operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop.

After the complete unit is de-energized for 20 mins, check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If its no use, please replace control panel AP1.

31

Decreasefrequency due to hightemperature

resistantduring heat-ing operation

H0OFF 3S and blink10 times


Refer to the ProficienTECH Ductless Splits Technical Train-ing Manual (overload, high tem-perature resistant).

32Static

de-dusting protection

H2OFF 3S and blink

twice


No. Malfunction

Name



Display




and OFF 0.5s

OperationIndicator

CoolIndicator

HeatingIndicator

YellowIndicator

RedIndicator

GreenIndicator

898149-UIM-C-0114


33Overload

protection forcompressor




1. Wiring terminal OVC-COMP is loosened. In normal state, the resistance for this terminal should be less than 1ohm. 2. Refer to the ProficienTECH Ductless Splits Technical Train-ing Manual (discharge protec-tion, overload).

34System is abnormal




Refer to the ProficienTECH Ductless Splits Technical Train-ing Manual (overload, high tem-perature resistant).

35IPM

protectionH5





36Module

temperature is too high



37

Internal motor

(fan motor) do not

operate


Internal fan motor, exter-nal fan motor, compressor and electric heater stop operation, guide louver stops at present location.

1. Bad contact of DC motor feedback terminal.2. Bad contact of DC motor control end.3. Fan motor is stalling.4. Motor malfunction.5. Malfunction of main board rev detecting circuit.

38De-synchro-

nizing of compressor




39PFC

protectionHC




Refer to the ProficienTECH Ductless Splits Technical Train-ing Manual.

40Outdoor DC fan motor

malfunctionL3



Outdoor DC fan motor malfunction lead to com-pressor stop operation.

DC fan motor malfunction or system blocked or the connector loosed

41Power

protectionL9



Compressor stop opera-tion and Outdoor fan motor will stop 30s latter, 3 minutes latter fan motor and compressor will restart.

To protect the electronic components when detecting high power.

42

Indoor unit and outdoor unit doesn't

match

LPOFF 3S and blink19 times


compressor and Outdoor fan motor can’t work.

Indoor unit and outdoor unit doesn't match.

43Failure start-up

LCOFF 3S and blink11 times


Refer to the ProficienTECH Ductless Splits Technical Train-ing Manual.

44

Malfunction of phase current

detection circuit for

compressor

U1OFF 3S and blink13 times




No. Malfunction

Name



Display




and OFF 0.5s

OperationIndicator

CoolIndicator

HeatingIndicator

YellowIndicator

RedIndicator

GreenIndicator

898149-UIM-C-0114


45

Malfunction of voltage

dropping for DC bus-bar


During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop

Supply voltage is unstable

46

Malfunction of complete units current

detection


During cooling and drying operation, the compres-sor will stop while indoor fan will operate; During heating operating, the complete unit will stop operation.

There is circuit malfunction on outdoor units control panel AP1, please replace the outdoor units control panel AP1.

47The four-way

valve is abnormal


If this malfunction occurs during heating operation, the complete unit will stop operation.

1. Supply voltage is lower than AC175V;2. Wiring terminal 4V is loos-ened or broken;3. 4V is damaged, please replace 4V.

48

Zero-crossingmalfunction of outdoor

unit


During cooling operation, compressor will stop while indoor fan will operate; during heating complete unit will stop operation.


49Frequency

limiting (power).


50Compressor

is open-circuited

OFF 3S and blink

once

51

The temperature for turning on

the unit is reached


52

Frequency limiting (module

temperature)


53Normal com-munication

Continu-ously

54 Defrosting

OFF 3S and blink

once (during

blinking, ON 10s

and OFF 0.5s)

OFF 3S and blink

twice

Defrosting will occur in heating mode. Compres-sor will operate while indoor fan will stop opera-tion.

Its the normal state.


No. Malfunction

Name



Display




and OFF 0.5s

OperationIndicator

CoolIndicator

HeatingIndicator

YellowIndicator

RedIndicator

GreenIndicator

898149-UIM-C-0114


TABLE 13: Error Codes - 18K 24K

No.Malfunction

Name

Display Method of Indoor Unit

Display Method of Outdoor Unit (Indicator has 3 kinds of display status and they will

be repeated every 5s.)

A/C status Possible Reasons

Dual-8 Code

Display



□ OFF

■ Illuminated

☆ Blink

OperationIndicator

Cool Indicator

Heating Indicator

D5 (D40)

D6 (D41)

D16 (D42)

D30 (D43)

1High pressure

protection of system

E1OFF 3s andblink once □ ☆ ☆ ☆

During cooling and drying operation, except indoor fan operates, all loads stop operation. During heating operation, the complete unit stops.

Possible reasons:1. Refrigerant was overcharged;2. Poor heat exchange (includingfilth blockage of heat exchangerand bad radiating environment);Ambient temperature is too high.

2 Antifreezingprotection

E2OFF 3S and blink

twice■ □ ■ □

During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates.

1. Poor air-return in indoor unit;2. Fan speed is abnormal;3. Evaporator is dirty.

3

High discharge temperature protection of compressor


■ □ ■ ☆


Please refer to the ProficienTECH Ductless Splits Technical Training Manual (discharge protection, overload).

4 Overcurrent protection


□ ■ ☆ □


1. Supply voltage is unstable;2. Supply voltage is too low an load is too high;3. Evaporator is dirty.

5 Communication Malfunction

E6OFF 3S

and blink 6 times

□ □ □ ☆

During cooling operation, compressor stops while indoor fan motor operates. During heating operation, the complete unit stops.

Refer to the corresponding ProficienTECH Ductless Splits Technical Training Manual.

6

High temperature

resistant protection


■ □ ■ ■

During cooling operation: compressor will stop while indoor fan will operate. During heating operation, the complete unit stops.

Refer to the ProficienTECH Duct-less Splits Technical Training Man-ual(overload, high temperatureresistant).

7

Circuit PGmotor (indoorfan) has circuit

malfunctionby zero cross

detection

U8OFF 3S and blink

for 17 times

Operation of remote controller or control panel is available, but the unit wont act.

Control board is damaged.

8

PG motor (indoor fan motor) does not operate

H6OFF 3S and blink 11 times

The complete unit will stop operation.

Poor connection for PGF in circuit diagram;Malfunction of indoor units control panel AP1;Malfunction of indoor units motor M1.

9Malfunction protection of jumper cap

C5OFF 3S and blink 15 times

The complete unit will stop operation.

Poor connection for the jumper cap on indoor units control panel AP1; please reinsert or replace the jumper cap;

10

Indoor ambient temperature

sensor is open/short circuited

F1OFF 3S and blink

once

During cooling and drying operation, indoor unit operates while other loads will stop; during heating operation, the complete unit will stop operation.

1.Room temperature sensor hasn’t been connected well with indoor units control panel AP1 (refer to the wiring diagram for indoor unit); 2.Room temperature sensor is damaged (please refer to the resis-tance table of temperature sensor)

11

Indoor evapora-tor temperature sensor is open/short circuited

F2OFF 3S and blink

twice

During cooling and drying operation, indoor unit will operate while other loads will stop; During heating operation, the complete unit will stop operation.

1.Room temperature sensor hasn’t been connected well with indoor units control panel AP1 (refer to the wiring diagram for indoor unit); 2.Room temperature sensor is damaged (please refer to the resis-tance table of temperature sensor)

12

Outdoor ambient

temperature sensor is open/short circuited


□ □ ☆ ■

During cooling and drying operating, compressor stops while indoor fan operates; During heating operation, the complete unit will stop operation.

Outdoor temperature sensor hasn’t been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor).

898149-UIM-C-0114


13

Outdoor condenser



□ □ ☆ □

During cooling and drying operation, compressor stops while indoor fan will operate; During heating operation the complete unit will stop operation.

Outdoor temperature sensor hasn’t been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor).

14

Outdoor discharge



□ □ ☆ ☆

During cooling and drying operation, compressor will stop after operating for about 3 mins, while indoor fan will operate; During heating operation, the complete unit will stop after operating for about 3 mins.

1.Outdoor temperature sensor hasn’t been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor).2.The head of temperature sensor hasn’t been inserted into the copper tube.

15Limit/ decrease

frequency due to overload

F6

OFF 3S and blink

for 6 times

■ □ ☆ ☆All loads operate normally, while operation frequency for compressor is decreased.

Refer to the ProficienTECH Duct-less Splits Technical Training Man-ual (overload, high temperature resistant).

16Decrease

frequency due to overcurrent


■ ■ □ ■All loads operate normally, while operation frequency for compressor is decreased.

The input supply voltage is too low; System pressure is too high and overload.

17

Decrease frequency due

to high air discharge


■ ■ □ □All loads operate normally, while operation frequency for compressor is decreased.

Overload or temperature is too high; Refrigerant is insufficient; Malfunction of electric expansion valve (EKV).

18Voltage for DC bus-bar is too high

PHOFF 3S and blink 11 times

□ ■ □ ☆


1. Measure the voltage of position L and N on wiring board (XT), if the voltage is higher than 265VAC, turn on the unit after the supply voltage is increased to the normal range.2. If the AC input is normal measure the voltage of electrolytic capacitor C on control panel (AP1), if its normal, there’s malfunction for the circuit, please replace the con-trol panel (AP1).

19

Malfunction of complete units

current detection

U5OFF 3S and blink 13 times

□ ■ ☆ ■

During cooling and drying operation, the compressor will stop while indoor fan will operate; During heating operating, the complete unit will stop operation.

There’s circuit malfunction on out-door units control panel AP1,please replace the outdoor unitscontrol panel AP1.

20

Overcurrent protection of

phase current for compressor

P5OFF 3S and blink 15 times

□ ☆ □ □


Refer to the ProficienTECH Duct-less Splits Technical Training Man-ual (IPM protection, loss of synchronism protection and overcurrent protection of phase current for compressor.

21 Defrosting H1OFF 3S and blink

once

Defrosting will occur in heating mode. Compressor will operate while indoor fan will stop operation.

Its the normal state.

22Static

de-dusting protection

H2OFF 3S and blink

twice/ /

23Overload

protection for compressor


□ ☆ ☆ □


1. Wiring terminal OVC-COMP is loosened. In normal state, the resistance for this terminal should be less than 1ohm.2.Refer to the ProficienTECH Ductless Splits Technical Training Manual (discharge protection, overload).


No.Malfunction

Name





Dual-8 Code

Display



□ OFF

■ Illuminated

☆ Blink

OperationIndicator

Cool Indicator

Heating Indicator

D5 (D40)

D6 (D41)

D16 (D42)

D30 (D43)

898149-UIM-C-0114


24System is abnormal


■ □ ■ ■


Refer to the ProficienTECH Duct-less Splits Technical Training Man-ual (overload, high temperature resistant)

25IPM

protectionH5


□ ☆ □ ■


Refer to the ProficienTECH Duct-less Splits Technical Training Man-ual (IPM protection, loss of synchronism protection and over-current protection of phase current for compressor.

26PFC

protectionHC


□ ■ ☆ ☆


Refer to the ProficienTECH Duct-less Splits Technical Training Man-ual

27De-synchronizing

of compressorH7


□ ☆ ■ ☆


Refer to the ProficienTECH Duct-less Splits Technical Training Man-ual (IPM protection, loss of synchronism protection and over-current protection of phase current for compressor.

28

Decrease frequency due to high temperature resistant during

heating operation


■ □ ☆ ☆All loads operate normally, while operation frequency for compressor is decreased.

Refer to the ProficienTECH Duct-less Splits Technical Training Man-ual (overload, high temperature resistant).

29 Failure startup LCOFF 3S and blink 11 times

□ ☆ □ ☆


Refer to the ProficienTECH Duct-less Splits Technical Training Man-ual.

30

Malfunction of phase current

detection circuit for compressor


□ ☆ ■ □



31EE PROM malfunction

EEOFF 3S and blink 15 times

□ □ □ ■



32Charging

malfunction of capacitor

PUOFF 3S and blink 17 times

□ ■ □ ■


Refer to the part three charging ProficienTECH Ductless Splits Technical Training Manual of capacitor.

33

Malfunction of module

temperaturesensor circuit


□ □ ■ ☆




No.Malfunction

Name





Dual-8 Code

Display



□ OFF

■ Illuminated

☆ Blink

OperationIndicator

Cool Indicator

Heating Indicator

D5 (D40)

D6 (D41)

D16 (D42)

D30 (D43)

898149-UIM-C-0114


34Module high temperature protection


■ □ ☆ ■

During cooling operation, compressor will stop while indoor fan will operate; During heating operation,the complete unit will stop.

After the complete unit is de-energized for 20mins, check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If its no use, please replace control panel AP1.

35Malfunction of

voltage dropping for DC bus-bar


□ ■ ■ ■


Supply voltage is unstable.

36Voltage of DC

bus-bar is too low

PLOFF 3S and blink 21 times

□ ■ ■ □


1. Measure the voltage of position L and N on wiring board (XT), if thevoltage is higher than 150VAC, turn on the unit after the supply voltage is increased to the normal range.2.If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1), if its normal, there’s malfunction for the circuit, please replace the control panel (AP1).

37

Limit / decrease frequency due to high temperature

of module

EU ■ ■ ■ ☆All loads operate normally, while operation frequency for compressor is decreased.

Discharging after the complete unit is de-energized for 20mins, check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If its no use, please replace control panel AP1.

38The four-way

valve is abnormalU7 ■ □ ☆ □

If this malfunction occurs during heating operation, the complete unit will stop operation.

1.Supply voltage is lower than AC175V;2.Wiring terminal 4V is loosened or broken; 3.4V is damaged, please replace 4V.

39Zero crossing malfunction of outdoor unit

U9 ■ ■ ☆ □

During cooling operation, compressor will stop while indoor fan will operate; during heating, the complete unit will stop operation.


40Limit / decrease frequency due to antifreezing

FH ■ ■ ■ □All loads operate normally, while operation frequency for compressor is decreased.

Poor air-return in indoor unit or fan speed is too low.


No.Malfunction

Name





Dual-8 Code

Display



□ OFF

■ Illuminated

☆ Blink

OperationIndicator

Cool Indicator

Heating Indicator

D5 (D40)

D6 (D41)

D16 (D42)

D30 (D43)

898149-UIM-C-0114


SECTION XXV: RESISTANCE TABLESTABLE 14: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K)

Temp. (°F) Resistance (k) Temp. (°F) Resistance (k) Temp. (°F) Resistance (k) Temp. (°F) Resistance (k)

-2.2 138.1 68 18.75 138.2 3.848 208.4 1.071

-0.4 128.6 69.8 17.93 140 3.711 210.2 1.039

1.4 121.6 71.6 17.14 141.8 3.579 212 1.009

3.2 115 73.4 16.39 143.6 3.454 213.8 0.98

5 108.7 75.2 15.68 145.4 3.333 215.6 0.952

6.8 102.9 77 15 147.2 3.217 217.4 0.925

8.6 97.4 78.8 14.36 149 3.105 219.2 0.898

10.4 92.22 80.6 13.74 150.8 2.998 221 0.873

12.2 87.35 82.4 13.16 152.6 2.896 222.8 0.848

14 82.75 84.2 12.6 154.4 2.797 224.6 0.825

15.8 78.43 86 12.07 156.2 2.702 226.4 0.802

17.6 74.35 87.8 11.57 158 2.611 228.2 0.779

19.4 70.5 89.6 11.09 159.8 2.523 230 0.758

21.2 66.88 91.4 10.63 161.6 2.439 231.8 0.737

23 63.46 93.2 10.2 163.4 2.358 233.6 0.717

24.8 60.23 95 9.779 165.2 2.28 235.4 0.697

26.6 57.18 96.8 9.382 167 2.206 237.2 0.678

28.4 54.31 98.6 9.003 168.8 2.133 239 0.66

30.2 51.59 100.4 8.642 170.6 2.064 240.8 0.642

32 49.02 102.2 8.297 172.4 1.997 242.6 0.625

33.8 46.6 104 7.967 174.2 1.933 244.4 0.608

35.6 44.31 105.8 7.653 176 1.871 246.2 0.592

37.4 42.14 107.6 7.352 177.8 1.811 248 0.577

39.2 40.09 109.4 7.065 179.6 1.754 249.8 0.561

41 38.15 111.2 6.791 181.4 1.699 251.6 0.547

42.8 36.32 113 6.529 183.2 1.645 253.4 0.532

44.6 34.58 114.8 6.278 185 1.594 255.2 0.519

46.4 32.94 116.6 6.038 186.8 1.544 257 0.505

48.2 31.38 118.4 5.809 188.6 1.497 258.8 0.492

50 29.9 120.2 5.589 190.4 1.451 260.6 0.48

51.8 28.51 122 5.379 192.2 1.408 262.4 0.467

53.6 27.18 123.8 5.197 194 1.363 264.2 0.456

55.4 25.92 125.6 4.986 195.8 1.322 266 0.444

57.2 24.73 127.4 4.802 197.6 1.282 267.8 0.433

59 23.6 129.2 4.625 199.4 1.244 269.6 0.422

60.8 22.53 131 4.456 201.2 1.207 271.4 0.412

62.6 21.51 132.8 4.294 203 1.171 273.2 0.401

64.4 20.54 134.6 4.139 204.8 1.136 275 0.391

66.2 19.63 136.4 3.99 206.6 1.103 276.8 0.382

898149-UIM-C-0114


TABLE 15: Resistance Table of Outdoor and Indoor Tube Temperature Sensors (20K) Temp. (°F) Resistance (k) Temp. (°F) Resistance (k) Temp. (°F) Resistance (k) Temp. (°F) Resistance (k)

-2.2 181.4 68 25.01 138.2 5.13 208.4 1.427

-0.4 171.4 69.8 23.9 140 4.948 210.2 1.386

1.4 162.1 71.6 22.85 141.8 4.773 212 1.346

3.2 153.3 73.4 21.85 143.6 4.605 213.8 1.307

5 145 75.2 20.9 145.4 4.443 215.6 1.269

6.8 137.2 77 20 147.2 4.289 217.4 1.233

8.6 129.9 78.8 19.14 149 4.14 219.2 1.198

10.4 123 80.6 18.13 150.8 3.998 221 1.164

12.2 116.5 82.4 17.55 152.6 3.861 222.8 1.131

14 110.3 84.2 16.8 154.4 3.729 224.6 1.099

15.8 104.6 86 16.1 156.2 3.603 226.4 1.069

17.6 99.13 87.8 15.43 158 3.481 228.2 1.039

19.4 94 89.6 14.79 159.8 3.364 230 1.01

21.2 89.17 91.4 14.18 161.6 3.252 231.8 0.983

23 84.61 93.2 13.59 163.4 3.144 233.6 0.956

24.8 80.31 95 13.04 165.2 3.04 235.4 0.93

26.6 76.24 96.8 12.51 167 2.94 237.2 0.904

28.4 72.41 98.6 12 168.8 2.844 239 0.88

30.2 68.79 100.4 11.52 170.6 2.752 240.8 0.856

32 65.37 102.2 11.06 172.4 2.663 242.6 0.833

33.8 62.13 104 10.62 174.2 2.577 244.4 0.811

35.6 59.08 105.8 10.2 176 2.495 246.2 0.77

37.4 56.19 107.6 9.803 177.8 2.415 248 0.769

39.2 53.46 109.4 9.42 179.6 2.339 249.8 0.746

41 50.87 111.2 9.054 181.4 2.265 251.6 0.729

42.8 48.42 113 8.705 183.2 2.194 253.4 0.71

44.6 46.11 114.8 8.37 185 2.125 255.2 0.692

46.4 43.92 116.6 8.051 186.8 2.059 257 0.674

48.2 41.84 118.4 7.745 188.6 1.996 258.8 0.658

50 39.87 120.2 7.453 190.4 1.934 260.6 0.64

51.8 38.01 122 7.173 192.2 1.875 262.4 0.623

53.6 36.24 123.8 6.905 194 1.818 264.2 0.607

55.4 34.57 125.6 6.648 195.8 1.736 266 0.592

57.2 32.98 127.4 6.403 197.6 1.71 267.8 0.577

59 31.47 129.2 6.167 199.4 1.658 269.6 0.563

60.8 30.04 131 5.942 201.2 1.609 271.4 0.549

62.6 28.68 132.8 5.726 203 1.561 273.2 0.535

64.4 27.39 134.6 5.519 204.8 1.515 275 0.521

66.2 26.17 136.4 5.32 206.6 1.47 276.8 0.509

898149-UIM-C-0114


TABLE 16: Resistance Table of Outdoor Discharge Temperature Sensor (50K)

Temp. (°F) Resistance (k) Temp. (°F) Resistance (k) Temp. (°F) Resistance (k) Temp. (°F) Resistance (k)

-20.2 853.5 50 98 120.2 18.34 190.4 4.754

-18.4 799.8 51.8 93.42 122 17.65 192.2 4.609

-16.6 750 53.6 89.07 123.8 16.99 194 4.469

-14.8 703.8 55.4 84.95 125.6 16.36 195.8 4.334

-13 660.8 57.2 81.05 127.4 15.75 197.6 4.204

-11.2 620.8 59 77.35 129.2 15.17 199.4 4.079

-9.4 580.6 60.8 73.83 131 14.62 201.2 3.958

-7.6 548.9 62.6 70.5 132.8 14.09 203 3.841

-5.8 516.6 64.4 67.34 134.6 13.58 204.8 3.728

-4 486.5 66.2 64.33 136.4 13.09 206.6 3.619

-2.2 458.3 68 61.48 138.2 12.62 208.4 3.514

-0.4 432 69.8 58.77 140 12.17 210.2 3.413

1.4 407.4 71.6 56.19 141.8 11.74 212 3.315

3.2 384.5 73.4 53.74 143.6 11.32 213.8 3.22

5 362.9 75.2 51.41 145.4 10.93 215.6 3.129

6.8 342.8 77 49.19 147.2 10.54 217.4 3.04

8.6 323.9 78.8 47.08 149 10.18 219.2 2.955

10.4 306.2 80.6 45.07 150.8 9.827 221 2.872

12.2 289.6 82.4 43.16 152.6 9.489 222.8 2.792

14 274 84.2 41.34 154.4 9.165 224.6 2.715

15.8 259.3 86 39.61 156.2 8.854 226.4 2.64

17.6 245.6 87.8 37.96 158 8.555 228.2 2.568

19.4 232.6 89.6 36.38 159.8 8.268 230 2.498

21.2 220.5 91.4 34.88 161.6 7.991 231.8 2.431

23 209 93.2 33.45 163.4 7.726 233.6 2.365

24.8 198.3 95 32.09 165.2 7.47 235.4 2.302

26.6 199.1 96.8 30.79 167 7.224 237.2 2.241

28.4 178.5 98.6 29.54 168.8 6.998 239 2.182

30.2 169.5 100.4 28.36 170.6 6.761 240.8 2.124

32 161 102.2 27.23 172.4 6.542 242.6 2.069

33.8 153 104 26.15 174.2 6.331 244.4 2.015

35.6 145.4 105.8 25.11 176 6.129 246.2 1.963

37.4 138.3 107.6 24.13 177.8 5.933 248 1.912

39.2 131.5 109.4 23.19 179.6 5.746 249.8 1.863

41 125.1 111.2 22.29 181.4 5.565 251.6 1.816

42.8 119.1 113 21.43 183.2 5.39 253.4 1.77

44.6 113.4 114.8 20.6 185 5.222 255.2 1.725

46.4 108 116.6 19.81 186.8 5.06 257 1.682

48.2 102.8 118.4 19.06 188.6 4.904 258.8 1.64

Subject to change without notice. Published in U.S.A. 898149-UIM-C-0114Copyright © 2014 by Johnson Controls, Inc. All rights reserved. Supersedes: 898149-UIM-B-0113

York International Corp.5005 York Drive

Norman, OK 73069

NOTES

Documents

INSTALLATION MANUAL - F.W. Webb Company · • Follow the instructions detailed in the installation manual. • Confirm proper insulating, taping and bundling of refrigeration lines,