Air Condition Datesheet

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User Manual10-1008-92

10-1008-92 101111111021

Proprietary – Use pursuant to instruction per APW Thermal Management (McLean) or its affiliates (APW Ltd.)Page 1 of 16

User Manual

Air Conditioning Unit

Model T51-1426-G010 220 VAC51T3-1426-G010 220 VAC



APW Thermal Management (McLean) User Manual10-1008-92


Revisions

Revision Description of Change Author Effective Date

0 Preliminary DJR Aug 05, 2002

1 New W/D, updated p2p DJR Aug 15, 2002

2 Updated P2P, Replacement Parts List KJK Sep 30, 2003

3 Updated per customer feedback. E-mail fromMike S on 10-20-03. Added +/-3Hz, websiteinformation

RCW Oct 20, 2003

4 Add 51T3-1426-G010 Information DJR Dec05, 2003

5 Added Cooling Thermostat (p/n: 10-1061-13) toreplacement parts list per ECO#95580.

DJR May 10, 2004

6 Updated page 13 & 14 FHH 9/9/04





Contents

Section Page

Application...................................................................................................................... 4Unpacking and Inspection ............................................................................................. 5Installation ...................................................................................................................... 5

Wiring ............................................................................................................................. 5Operation........................................................................................................................ 6 Air Conditioner Alarms................................................................................................... 6 Air Conditioner Functions Table.................................................................................... 7Maintenance................................................................................................................... 7Parts Replacement Instructions..................................................................................... 8Replacement Parts Lists ................................................................................................ 9 Appendix I – Technical Data........................................................................................ 10 Appendix II – Drawings.................................................................................................11-14 Appendix III – Warranty ................................................................................................. 15





Application

Cooling electronic cabinets protects temperature sensitive components and reduces theheat stress and therefore increases the life expectancy of these components. An Air Conditioning Unit is particularly suitable for a temperature range of +40°C to +55°Cwhereas comparable units such as an air/air heat exchanger or fan and filter units cannot

be used to dissipate the heat effectively or economically. Additionally, any requirement tohave the enclosure temperature below the maximum ambient temperature forces thedesign to be an air conditioning unit.

The Model T51-1426-G010 & 51T3-1426-G010 Air Conditioning Units were designed tooperate in most markets. Therefore, the unit must operate in a very wide voltage range. Inorder to accomplish this task, a transformer was incorporated into the design (referencewiring section). The transformer allows a wide range of input voltages to the unit whilemaintaining its cooling capabilities. This unit also includes a heating element for lowtemperature applications.

The Model T51-1426-G010 & 51T3-1426-G010 Air Conditioning Units incorporate a simple

design with a dry contact closure, each for malfunction switch (ACU fail) and low tempalarm (Heater fail). ACU fail and Heater fail are combined into one outlet.

When properly installed onto the cabinet, the air conditioning unit achieves IP56 protectionon the internal air circuit and IP34 on the external air circuit.

Figure 1 - External View (T51-1426-G010)

Unpacking and Inspection





Directly upon receipt, inspect the Air Conditioning Unit. Check for concealed damage thatmay have occurred during shipment. Any damage evident should be noted on the freightbill. Damages should be brought to the attention of the delivering carrier within 15 days of delivery. Save the carton and packing material and request an inspection. Then file a claimwith the delivering carrier.

APW Thermal Management cannot accept any responsibility for freight damage; however,we are ready to assist you in any way possible.

Installation

NOTE: Prior to operating the Air Conditioning Unit, ensure the transformer isconfigured properly (See wiring section). Failure to follow the proper configurationwill void APW’s warranty.

Mounting hole locations are shown in the Model Drawing in Appendix II.

The Air Conditioning Unit is designed for a door mount application. Ensure the mounting

rail gasket has been applied onto the units’ mounting rail prior to installation.

Step 1: Mount air conditioner on enclosure taking care not to damage the mounting gasket(Use M5 hardware).

Step 2: Allow unit to remain upright for a minimum of five (5) minutes before starting.Caution: Air conditioner must be in upright position during operation.

Step 3: Refer to the nameplate for electrical requirements. Wire the unit to a properlygrounded power supply. Electrical circuit should be fused with slow blow or HACR circuitbreaker.

WiringWiring details are shown in the Wiring Diagrams in Appendix II.

There is a 220 VAC transformer in the T51-1426-G010 & 51T3-1426-G010 units. It isVERY important to properly configure EACH air conditioner for the specific application or nominal voltage at each site. Prior to powering the ACU, measure line voltage andfrequency with a hand held voltmeter.

The 220VAC unit ships with a nominal 220VAC 50 HZ and 60 HZ (Drawing supercedesthese values). If you do not measure 220VAC, you MUST re-configure the transformer located behind the internal upper access panel. Failure to do this will void any warranty

and may have an adverse affect on thermal performance. To determine the proper taplocations, reference Appendix II wiring diagrams.





Operation

The air conditioning unit incorporates a simple, but effective control scheme to providereliable cooling performance. After installation, the air conditioning unit is connected to thecabinet power supply by power cords using commonly available electrical connectors. Asthere is no ON/OFF switch facility included, the cabinet supply circuitry must include any

necessary circuit breakers or electrical cutoffs. See the Technical Data table in Appendix Ifor power requirements. The air conditioner will operate as soon as 220 VAC power isapplied.

Once power is applied to the air conditioner, the internal fan is ON at all times. Thecompressor is ON when the internal air temperature is >35°C and OFF at <25°C asdetermined by the cooling thermostat located on the electrical panel. The condenser blower is ON when the internal temperature is >35°C and condenser pressure is>165psig; it is OFF at <25°C and/or condenser pressure <95psig as determined by thecooling thermostat and head pressure control switch. The heater is turned ON when theinternal air temperature <7°C and turned off when the internal air temperature is >10°C.The heating thermostat located on the electrical panel controls when the heater turns

on/off. There is one AC fan on the internal air circuit. The external air circuit has one ACfan. The AC circuit powers the heater, which allows the heater to function during coldtemperature startup conditions.

Air Conditioning Alarms

The malfunction switch determines the Air Conditioner alarm and the heater alarm isdetermined by the temperature of the air in the A/C inlet on the internal air circuit. Bothalarms are combined into one outlet.

Item Pins

Alarm

• ContactsCLOSED

Alarm.

• ContactsOPEN

Possible cause

A/C Alarm

1 & 2 >350psig <275psig• Internal fan malfunction

• External fan malfunction

• Clogged coil or inlet

Heater Alarm

1 & 2 <-4°C >7°C

• Heater malfunction• Heater Control Thermostat

malfunction

• Auto High temp limit switchmalfunction

• Manual High temp limit

switch malfunction• Internal fan malfunction





Air Conditioner Functions Table

Item ON Temp OFF Temp ON Press. OFF Press

Internal fans ALL N/A N/A N/A

External fan >35°C <25°C >165psig <95psig

Heater <7°C >10°C N/A N/A

MAINTENANCE

Compressor

The compressor requires no maintenance. It is hermetically sealed, properly lubricated atthe factory and should provide years of satisfactory operating service.

Should the refrigerant charge be lost, recharging ports (access fittings) on the suction anddischarge sides of the compressor are provided for recharging and/or checking suctionand discharge pressures. Under no circumstances should the access fitting covers beloosened, removed or tampered with. Breaking of seals on compressor access fittings

during warranty period will void warranty on hermetic system. Recharging ports areprovided for the ease and convenience of reputable refrigeration repair service personnelfor recharging the air conditioner.

Condenser and Evaporator Blower Motors

Blower motors require no maintenance. All bearings, shafts, etc. are lubricated duringmanufacturing for the life of the motor.

If the condenser blower motor (ambient blower) should fail, it is not necessary to removethe air conditioner from the cabinet or enclosure to replace the blower. The condenser blower is mounted on it’s own bulkhead and is easily accessible by removing the frontcover.

Caution: Operation of the air conditioner in areas containing airborne caustics or chemicals can rapidly deteriorate condenser coils, blowers and motors, etc. Contact APWThermal Management for special recommendations.

Refrigerant Loss

Each air conditioner is thoroughly tested prior to leaving the factory to insure againstrefrigeration leaks. Shipping damage or microscopic leaks not found with sensitiveelectronic refrigerant leak detection equipment during manufacture might require repair or recharging of the system. This work should only be performed by a qualified professional,generally available through a local, reputable air conditioning repair or service company.

Refer to the data on the nameplate that specifies the type of refrigerant and the chargesize in ounces.

Before recharging, make sure there are no leaks and that the system has been properlyevacuated into a deep vacuum.

Screen & Coil

Inspect and clean bug screen and dirty coil as required.





Parts Replacement Instructions

Should it be necessary to service the air conditioner, disconnect the cabinet circuit breaker and remove all power from the power cords and disconnect the power cords beforedisassembling or servicing the unit.

Items that can be accessed from the internal side of the unit are:• Internal AC fan

• Heater • Auto High temperature limit switch

• Manual High temperature limit switch

• Head Pressure Control

• Thermal Expansion Valve

• Low temperature Alarm

• Thermo-Stats (Heating & Cooling)• Run Capacitors (Internal & External Fans, Compressor)

• Transformer

Items that can be accessed from the external side of the unit are:• External fan

• Compressor

• Filter Dryer • Malfunction Switch

To replace the internal fan, first remove the upper internal access panel. Next, remove thefan-mounting panel. The fans are attached to the mounting panel with (4) M4 screws.Replace all components in reverse order.

To replace the external fan, perform the following: Disconnect the power & neutral wiresfor the condenser motor by unplugging the 4-position Mate-N-Lok (reference the Wiring section). Remove (4) screws that hold the Condenser Blower and mounting bracket ontothe unit. Remove the entire assembly. To replace the motor loosen motor mountingbracket screws and remove motor. Replace all components in reverse order.

To replace the heater or one of the limit switches, remove the lower internal access panel(disconnect wires as needed). The heater is mounted on the backside of the access panelusing (2) screws. The limit switches are mounted to the switch bracket directly above theheater element. Replace all components in reverse order.

All other items except the malfunction switch, filter dryer and compressor are replacedthrough the upper internal access panel.





Replacement Parts List

T51 Series Components List

Part Description Part Number Notes

Blower Assembly, T51 50-5012-02

MI, Evaporator 10-1091-88

Capacitor, Condenser Blower 52-6083-00

Capacitor, Evaporator Blower 52-6084-02

Capacitor, Compressor, Run 52-6032-01

Compressor 10-1026-91

Heater, Comp, 240V 10-1030-06

Filter/Dryer 52-6028-06

Limit Switch, Malfunction (A/C Fail) 52-6104-42

Terminal Block 10-1003-31

Thermal Expansion Valve 10-1040-31

Transformer 10-1006-138

Heating Thermo-Stat, 60-101F 10-1061-03

Cooling Thermo-Stat, SPST, 55-100For

Cooling Thermo-Stat, SPST, 82-105F

10-1061-02or

10-1061-13

Look at the Cooling Thermo-Stat label todetermine the temperature range. Matchthe temperature range to thecorresponding replacement coolingThermo-Stat.

Limit Switch, 165/95 psig 52-6104-26

Heater, Rod, 240V 10-1030-24

Heater Limit Switch, Auto-Reset 10-1033-01

Heater Limit Switch, Manual Reset 10-1033-07

(Low Temperature/Heater Fail) Limit Switch,OP45F, CL25F

10-1033-18





Appendix I – Technical Data

Model No.: T51-1426-G010 51T3-1426-G010

Rated voltage AC 220 V AC +/- 10%. 220 V AC +/- 10%.

Frequency AC 50/60 +/- 3Hz 50/60 +/- 3Hz

Rated current AC• 15 A (AC) w/2500 W heater • 0.5 A (AC) without heater

• 10.5 A (AC) during cooling

• 15 A (AC) w/2500 W heater • 0.5 A (AC) without heater

• 10.5 A (AC) during coolingStart-up current AC TBD TBD

Rated voltage DC N/A N/A

Rated current DC N/A N/A

Start-up current DC N/A N/A

DimensionsWidthHeightDepth

848 mm1298 mm248 mm

848 mm1298 mm248 mm

Position Vertical Mounted Vertical Mounted

Material

G90U Galvanized Steel,

1.6 mm thick, and Polyester Urethane Powder Paint

G90U Galvanized Steel,

1.6 mm thick, and Polyester Urethane Powder Paint

Useful cooling output (in cabinet) 4100 watts 4100 watts

Nominal power consumption• 15 A (AC) w/2500 Watt heater

• 0.5 A (AC) without heater • 10.5 A (AC) during cooling

• 15 A (AC) w/2500 Watt heater

• 0.5 A (AC) without heater • 10.5 A (AC) during cooling

Heater 2500 W 2500 W

External Airflow circuit(in cabinet @ nominal VAC)

1084 m3/h 1084 m

3/h

Internal Airflow circuit(in cabinet @ nominal VAC)

786 m3/h 786 m

3/h

Temperature range• Internal -5°C to +65°C

• External -55°C to + 55°C

• Internal -5°C to +65°C

• External -55°C to + 55°C

Temperature control

• Internal fans ON only

• External fan ON >35°C &>165psig; OFF <25°C and/or <95psig

• Heater ON <7°C; OFF >10°C

• Compressor ON >35°C; OFF<25°C

• Internal fans ON only

• External fan ON >35°C &>165psig; OFF <25°C and/or <95psig

• Heater ON <7°C; OFF >10°C

• Compressor ON >35°C; OFF<25°C

ACU Alarm(Normal=Open/Error=Close)

>350psig = Close >350psig = Close

Heater Alarm(Normal=Open/Error=Close)

>7°C = Open, <-4°C = Close >7°C = Open, <-4°C = Close

Alarm connector 15-Pin AMP D-SubP/N 745494-6 Plug

15-Pin AMP D-SubP/N 745494-6 Plug

AC connector Qualtek IEC320-C20

P/N 744W-00/04

Qualtek IEC320-C20

P/N 744W-00/04DC connector N/A N/A

Protection category(Ext. circuit / Int. circuit)

IP34 / IP56 IP34 / IP56

Weight 89 kg 89 kg





Appendix II – Drawings

Figure 2 – T51 Model Drawing, 51-G001





Figure 3 –51T3 Model Drawing, 51-G002





Figure 4 – W/D, T51-1426-G010 & 51T3-1426-G010





Figure 5 – P2P, T51-1426-G010 & 51T3-1426-G010





Appendix III - Warranty

Supplier warrants that the Material manufactured by Supplier will be free from defects in material

and workmanship for a period of one (1) year from the date of shipment by Supplier, subject to thefollowing conditions and exclusions:

A) Conditions. All Material must be installed and operated according to the following

specifications:1. Maximum voltage as follows:

i) Model T51-1426-G010 & 51T3-1426-G010: 244 VAC.ii) Prior to operating the Air Conditioning Unit, ensure the transformer is configured

properly (See wiring section). Failure to follow the proper configuration will void

APW’s warranty.2. Maximum frequency variation no greater than plus or minus 3 Hz. of nameplate nominalrating;

3. Must not exceed minimum and maximum stated temperatures on the nameplate;4. Not to exceed (BTU/Hr) rating, including any heat sink as indicated on the nameplate;5. Refrigerant bearing Material must not be restarted for a period of one (1) minute after

intentional or accidental shut-off;6. The filters (if applicable) must be cleaned regularly;

7. The Material and any parts thereof must not be modified, unless prior written authorizationis received form Supplier;8. All Material must be installed and grounded in accordance with all relevant electrical andsafety codes, as well as the National Electric Code and OSHA rules and regulations;

9. A violation of any one of these conditions shall render the warranty hereunder void and of no effect.

B) Exclusions. No warranty shall apply to:1. Any APW McLean Material that does not have proper protective coatings and/or options for operating in abnormal or corrosive environments if operated in such an environment;

2. Damage to refrigerant-bearing Material caused by the use of other than nameplate-designated refrigerant.

Supplier’s sole obligation to Company under this warranty will be at Supplier’s option. 1) to repair or replace any Material or parts thereof manufactured by the Supplier which are defective inmaterial or workmanship, or 2) to refund the portion of the purchase price paid by the Company

relating to such defective Material or part. In the event of a warranty claim, the Company may, withprior notice to Supplier, return the defective Material or part(s) to Supplier for repair at no charge, or the Company may repair the Material at the Company’s own expense and Supplier will supply

repair parts at no charge, providing that the defective part(s) is (are) returned to the Supplier andsuch part(s) has (have) failed and is (are) covered by the warranty as determined by the Supplier.Parts supplied as warranty replacement parts will assume the balance of such warranty.

THIS WARRANTY CONSTITUTES THE ENTIRE WARRANTY WITH RESPECT TO THEPRODUCT AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,

INCLUDING ANY WARRANTY OF MERCHANTABILITY AND WARRANTY OF FITNESS FOR APARTICULAR PURPOSE. IN NO EVENT SHALL SUPPLIER BE RESPONSIBLE FOR ANYCONSEQUENTIAL OR INCIDENTIAL DAMAGES OF ANY KIND WHATSOEVER

APW Thermal Management 11611 Business Park Blvd. No.

Champlin, MN 55316(Tel) 763-323-8200

www.apw.com OR http://www.mcleanthermal.com/




Proprietary – Use pursuant to instruction per APW Thermal Management (McLean) or its affiliates (APW Ltd.)

Notes

APW Thermal Management 11611 Business Park Blvd. No.

Champlin, MN 55316(Tel) 763-323-8200

www.apw.com OR http://www.mcleanthermal.com/

Documents

Air Condition Datesheet