Lennox LI009HI-230P432 - 4 Refrigerant System Diagram

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Technical Information
Service Manual
4. Refrigerant System Diagram
Connection pipe specication:
Liquid pipe:1/4"
Gas pipe:3/8" (09K)
Gas pipe:1/2"(12K)
Gas pipe:5/8" (18/24/36K)
Indoor unit
Outdoor unit
COOLING
HEATING
4-Way valve
Discharge
Suction
Heat
exchanger
(evaporator)
Heat
exchanger
(condenser)
Valve
Valve
Liquid pipe
side
Gas pipe
side
Strainer
Electron
expansion
valve
Strainer
Accumlator
Compressor