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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
Th2
Th7
Th3
Th8
Th9
Th6
Th4
Th5
LOC.
Description
PCB Connector
Th1
Thermistor for suction air temperature
CN-TH1(Indoor)
Th2
Thermistor for evaporator inlet temperature
Th3
Thermistor for evaporator outlet temperature
CN-TH2(Indoor)
Th4
Thermistor for evaporator middle temperature
CN-TH3(Indoor)
Th5
Thermistor for discharge pipe temperature
CN-TH3(OUTDOOR)
Th6
Thermistor for suction pipe temperature
Th7
Thermistor for condensing temperature
CN-TH2(OUTDOOR)
Th8
Thermistor for outdoor air temperature
Th9
Thermistor for condensing middle temperature
CN-TH4(OUTDOOR)
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EEV : Electronic Expansion Valve