3. Piping Diagrams
Accumulator
Constant
Compressor
Heat
Exchanger
Gas
(Ø 12.7mm)
Liquid
(Ø 6.35mm)
OUTDOOR UNIT
Field Piping
Reversing
Valve
Refrigerant Flow
Cooling
Heating
Th.3
Th.1
Th.2
Th.4
EEV
High
pressure
S/W
- 4 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LOC.
Description PCB
Connector
EEV
Electronic Expansion Valve
CN_LEV1
Th1
Thermistor for suction pipe temperature
CN_TH2
Th2
Thermistor for discharge pipe temperature
CN_TH2
Th3
Thermistor for condenser pipe temperature
CN_TH1
Th4
Thermistor for outdoor air temperature
CN_TH1
