Service Manual

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Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. Piping Diagrams
Indoor Unit Outdoor Unit
Heat
Exchanger
(Evaporator)
Heat
Exchanger
(Condenser)
Compressor
Accumulator
Gas Side
3-Way Valve
2-Way Valve
Liquid Side
Cooling
Heating
Reversing Valve
EEV
Th1
Th6
Th3
Th7
Th4
Th5
LOC. Description PCB Connector
Th1 Thermistor for sunction air temperature CN-TH1(Indoor)
Th3 Water level sensor (Option) CN-TH2(Indoor)
Th4 Thermistor for evaporator middle temperature CN-TH3(Indoor)
Th5 Thermistor for discharge pipe temperature CN-TH2(OUTDOOR)
Th6 Thermistor for condensing temperature CN-TH1(OUTDOOR)
Th7 Thermistor for outdoor air temperature CN-TH1(OUTDOOR)
※ EEV : Electronic Expansion Valve