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Copyright ©2013 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
Th4
Th5
Th2
Th3
LOC.
Description
PCB Connector
Th1
Thermistor for sunction air temperature
CN-TH1(Indoor)
Th2
Thermistor for evaporator middle temperature
CN-TH3(Indoor)
Th3
Thermistor for discharge pipe temperature
CN-TH2(OUTDOOR)
Th4
Thermistor for condensing temperature
CN-TH1(OUTDOOR)
Th5
Thermistor for outdoor air temperature
CN-TH1(OUTDOOR)
※
EEV : Electronic Expansion Valve
