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Only for training and service purposes
LGE Internal Use Only
3. Piping Diagrams
Reversing
Valve
Outdoor Unit
Th1
Th3
Th2
Th4
Accum
u
lator
Field piping
Liquid(Ø1/4")
Field piping
Gas(Ø3/8")
Room C
Room B
Room A
Compressor
Heat
Exchanger
EEV-C
EEV-B
EEV-A
Room C
Room B
Room A
COOLING
HEATING
REFRIGERANT FLOW
Main service
Valve(Gas)
Main service
Valve(Liquid)
LOC.
Description
PCB Connector
Th1
Thermistor for outdoor air temperature
CN_TH2
Th2
Thermistor for condensing temperature
CN_TH2
Th3
Thermistor for discharge pipe temperature
CN_TH3
Th4
Thermistor for suction pipe temperature
CN_TH3
