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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. Piping Diagrams
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
S/V
Solenoid Valve for Hot Gas/Oil Separator
CN_H/GAS
/CN_OIL/S
L/P
Low Pressure Switch
CN_PRESS
Reversing
Valve
Outdoor Unit
Th1
Th3
Th2
Th4
S/V
Oil Separator
Accumulator
Field piping
Liquid(Ø1/4")
Field piping
Gas(Ø3/8")
Room D
Room C
Room B
Room A
Compressor
Heat
Exchanger
EEV-D
Main service
Valve(Gas)
Main service
Valve(Liquid)
EEV-C
EEV-B
EEV-A
Room D
Room C
Room B
Room A
COOLING
HEATING
REFRIGERANT FLOW
