Internal Use Only http://biz.lgservice.com Multi Air Conditioner SVC MANUAL(Exploded View) MODEL : A2UW18GFA0 [LMU18CHV] CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.
1. Specification Outdoor unit Testing Combination kW Btu/h kW Heating Btu/h Cooling kW Heating kW Btu/Wh V , Ø , Hz Cooling Min.~Rated~Max. A Heating Min.~Rated~Max. A Cooling Max. A Heating Max. A Power Supply Cable (included Earth) No. x mm2 (AWG) Power and Communication Outdoor ~ BD unit No. x mm2 (AWG) Cable (included Earth) Sum of Indoor Units Capacity kBtu/h Number of Indoor Units EA Number of BD Units EA WxHxD mm WxHxD inch kg (lbs) Type Model Model x No. Motor type Motor Output W x No.
2. List of Functions & Accessory 2.
3. Piping Diagrams Outdoor Unit Condenser Out Temperature Thermistor Inlet Air Temperature Thermistor Condensing Temperature Thermistor Ø6.35 Flare Connection Electronic Expansion Valve Field Piping Liquid(Ø6.35) ROOM A M Main SVC V/V ROOM B Pressure Sensor Field Piping Gas(Ø9.52) Main SVC V/V ROOM A ROOM B Ø9.52 Flare Connection Suction Temperature Thermistor Discharge Temperature Thermistor Inverter Compressor : Cooling : Heating Copyright ©2014 LG Electronics. Inc. All right reserved.
4. Wiring Diagrams Copyright ©2014 LG Electronics. Inc. All right reserved.
Main PCB CN-4WAY CN-U_V_W CN-HEATER2 CN-MONITOR CN-COMM P(L)_BR P(N)_BL CN-COIL2 CN-COIL1 WCN-GND2 Sub PCB CN-EEV A CN-EEV B CN-EEV C CN-AIR CN-MONITOR1 CN-MID CN-H/PRESS CN-DISCHARGE CN-SUCTION Monitoring PCB CN-MAIN CN-CENTRAL CN-WRITE DIP-SW CN-LGMV CN-FLASH Copyright ©2014 LG Electronics. Inc. All right reserved.
5. Exploded View 649950 435300 263230A 263230B 263230E 268711A 435512 137213A 263230C 263230D 349600 554031 268711M 552112 W6640 552113 268711D 261704 559010 546810 430410 152503 W6631 437211 552114 435511 W49810 550140 447910 554160 137213B 165010 W4986A 661400A 552203A 661400B 552203B W4986B 349480 237202 435301 Location No.
P/NO : MFL68280001 JANUARY, 2014
