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4. Refrigeration System Diagram
A1: Unit A electronic expansion valve
A2: Unit A gas pipe temperature sensor
A3: Unit A liquid pipe temperature sensor
B1: Unit B electronic expansion valve
B2: Unit B gas pipe temperature sensor
B3: Unit B liquid pipe temperature sensor
C1: Unit C electronic expansion valve
C2: Unit C gas pipe temperature sensor
C3: Unit C liquid pipe temperature sensor
D1: Unit D electronic expansion valve
D2: Unit D gas pipe temperature sensor
D3: Unit D liquid pipe temperature sensor
Cooling Cycle Heating Cycle