Refrigerant Cycle Diagram - LG S4-W12JA1ZD Manual

3. Refrigerant Cycle Diagram

Model : S4-W12JA1ZD
Indoor Unit
Th1
Heat
Exchanger
(Evaporator)
LOC.
Th1 Thermistor for indoor air temperature
Th2 Thermistor for evaporator middle temperature
Th3 Thermistor for outdoor air temperature
Th4 Thermistor for condensing temperature
Th5 Thermistor for discharge pipe temperature
Refrigerant Pipe Connection Port Diameters
S4-W12JA1ZD
Heat Exchanger
EEV
Appendix
(Electronic
Expansion Valve)
Check Valve
Field Piping
(Copper Tubing)
Liquid Side
M
Th2
Field Piping
(Copper Tubing)
Gas Side
Description
Model
M
M
Propeller Fan
Capillary Tube
Flare Joint
Outdoor Unit
2-Way Valve
Capillary Tube
(OD 3.2 × ID 1.6 × 950 mm) × 1EA
3-Way Valve
Th5
Compressor
Gas
mm
Ø 9.52
Cross Flow Fan Compressor
Temperature
2-Way Valve
Sensor
3-Way Valve
Muffler Strainer
4
Th3
Heat
M
Exchanger
(Condenser)
Reversing
Th4
Valve
: Cooling
: Heating
PCB Connector
CN-TH1 (Indoor)
CN-TH3 (Indoor)
CN-TH1 (Outdoor)
CN-TH2 (Outdoor)
Liquid
inch mm
Ø 3/8 Ø 6.35
r Accumulator
Pressure Sensor
inch
Ø 1/4
4 Way Valve
Pressure Switch