- 3 -
Copyright ©2008 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)
EEV
Compressor
Accumulator
Gas Side
3-Way Valve
2-Way Valve
Liquid Side
Cooling
Heating
Reversing Valve
Th1
Th2
Th5
Th4
Th3
LOC.
Description
PCB Connector
Th1
Thermistor for indoor air temperature
CN_TH1(INDOOR)
Th2
Thermistor for evaporating temperature
CN_TH2(INDOOR)
Th3
Thermistor for discharge pipe temperature
CN_D_PIPE(OUTDOOR)
Th4
Thermistor for condensing temperature
CN_TH1(OUTDOOR)
Th5
Thermistor for outdoor air temperature
* EEV : Electronic Expansion Valve.
