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LG A3UW24GFA0, Service Manual, Page: 4 / 8

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LG A3UW24GFA0 Service Manual Download Page 4

- 4 -

Copyright ©2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

3. Piping Diagrams

M 

Discharge 

 Temperature 

Thermistor 

Suction 

Temperature 

Thermistor 

Inverter 

Compressor 

Electronic 

Expansion 

Valve 

Condenser Out 

 Temperature 

Thermistor 

Inlet Air 

Temperature 

Thermistor 

Outdoor Unit 

Ø6.35
Flare Connection

Ø9.52
Flare Connection

Condensing 

Temperature 

Thermistor 

ROOM A 

ROOM A 

ROOM B

Field Piping 
Liquid(Ø6.35) 

Field Piping 
Gas(Ø9.52) 

: Cooling 
: Heating 

ROOM B

ROOM C

Main SVC V/V 

ROOM C

Main SVC V/V 

Pressure 

Sensor 

Summary of Contents for A3UW24GFA0

Page 1: ...oner SVC MANUAL Exploded View MODEL A3UW24GFA0 LMU24CHV CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel Internal Use Only http biz lgservice com ...

Page 2: ...tarting Current Cooling Max A Heating Max A Wiring Connections Power Supply Cable included Earth No x mm2 AWG 3C x 2 5 12 Power and Communication Cable included Earth Outdoor BD unit No x mm2 AWG Combination Sum of Indoor Units Capacity kBtu h 33 Number of Indoor Units EA 3 Number of BD Units EA Casing Color Warm Gray Dimensions W x H x D mm 870 655 320 W x H x D inch 34 1 4 x 25 25 32 x 12 19 32 ...

Page 3: ...on Scheduler X AC Ez PQCSZ250S0 AC Smart ll PQCSW320A1E Option Kit SD card type PQCSE341A0 PQCSE342A0 ACP Advanced Control Platform PQCPA11A0E PQCPB11A0E AC Manager X PI485 PMNFP14A0 PMNFP14A1 DO Digital Output Kit PQNFP00T0 BNU Building Network Unit LONWORKS Gateway PQNFB16A1 BACnet Gateway PQNFB17B0 Installation Y branch X X X Header branch X Air Guide X ODU Dry Contact X Low Ambient Kit O Logic...

Page 4: ...emperature Thermistor Inverter Compressor Electronic Expansion Valve Condenser Out Temperature Thermistor Inlet Air Temperature Thermistor Outdoor Unit Ø6 35 Flare Connection Ø9 52 Flare Connection Condensing Temperature Thermistor ROOM A ROOM A ROOM B Field Piping Liquid Ø6 35 Field Piping Gas Ø9 52 Cooling Heating ROOM B ROOM C Main SVC V V ROOM C Main SVC V V Pressure Sensor ...

Page 5: ... 5 Copyright 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 Wiring Diagrams ...

Page 6: ... Internal Use Only Main PCB CN COMM CN MONITOR CN U_V_W P L _BR P N _BL CN COIL1 CN COIL2 WCN GND2 Sub PCB Monitoring PCB CN MONITOR1 CN DISCHARGE CN EEV A CN AIR CN SUCTION CN EEV B CN MID CN EEV C CN H PRESS CN LGMV CN CENTRAL CN WRITE DIP SW CN MAIN CN FLASH 7_SEGMENT TACT SW1 CN 4WAY CN HEATER2 ...

Page 7: ...11D 649950 263230E 263230A 263230B 263230C 263230D 165010 552203A 552203B W49810 552200 661400C 661400B 661400A 152503 261704 552114 552113 W4986A W4986B Location No Description Sensor Information Housing Color 263230A Thermisther1 CN DISCHARGE Discharge Pipe Black 263230B Thermisther2 CN SUCTION Suction Pipe Green 263230C Thermisther3 CN C PIPE Cond Out Pipe Violet 263230D Thermisther4 CN MID Con...

Page 8: ...P NO MFL68280002 January 2014 ...

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