LG LSU120HSV4 - Piping Diagrams

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Only for training and service purposes
LGE Internal Use Only
2. Piping Diagrams
FIELD PIPING
(Ø 1/4” Copper Tubing)
FIELD PIPING
(Ø 3/8” Copper Tubing)
M
M
Heat
Exchanger
(Evaporator)
Heat
Exchanger
(Condenser)
Compressor
Accumulator
2-Way Valve
Reversing
Valve
Indoor Unit Outdoor Unit
: Cooling
: Heating
EEV
Th1
Th2
Th3
Th5
Th4
Th6
Th8
Th7
Liquid Side
Gas Side
3- Way Valve
LS090HSV4 (AS-W09GB1B0), LS120HSV4 (AS-W12GB1B0), LA090HSV4 (AS-W09GBRB0),
LA120HSV4 (AS-W12GBRB0)
LOC. Description PCB Connector
Th1 Thermistor for indoor air temperature
CN-TH1 (Indoor)
Th2 Thermistor for evaporator inlet temperature
Th3 Thermistor for evaporator middle temperature
CN-TH2 (Indoor)
Th4 Thermistor for evaporator outlet temperature
Th5 Water Level Sensor (Option) CN-TH3 (Indoor)
Th6 Thermistor for outdoor air temperature
CN-TH1 (Outdoor)
Th7 Thermistor for condensing temperature
Th8 Thermistor for discharge pipe temperature CN-TH2 (Outdoor)
※ EEV : Electronic Expansion Valve