115
1 Compressor 15 Refrigerant inlet (liquid pipe) temp. sensor
2 4-Way Valve 16 Refrigerant outlet (gas pipe) temp. sensor
3 Gas-liquid separator 17 Water outlet temp. sensor
4 Air side heat exchanger 18 Water Inlet temp. sensor
5 Electronic expansion Valve 19 Air purge valve
6 Single-way electromagnetic valve 20 Expansion vessel
7 Liquid Tank 21 Circulating pump
8 Strainer 22 Manometer
9 Water Side Heat Exchanger (Plate Heat Exchange) 23 Safety valve
10 Backup heater (optional) 24 Y-shape filter
11 Flow switch 25 High Pressure Switch
12 Discharge gas sensor 26 Low Pressure Switch
13 Outdoor temperature sensor 27 Pressure valve
14
Evaporation sensor in heating (Condenser sensor in
cooling)
28 Capillary
16 REFRIGERANT CYCLE
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