4
12
10
13
6
7
8
19
UPS2
21
UPS1
20
1. Compressor
2. Discharge Line
3. Discharge Line
Check Valve
4. Condenser Coil
5. Receiver
6. Filter-Drier Inlet Valve
7. Filter-Drier
8. Filter-Drier Outlet Valve
9. Thermostatic Expansion Valve
10. Evaporator Coil
11. Suction Line
12. Subcooler
13. Liquid-Suction Heat Exchanger
14. Condenser Fan Switch (CFS)
15. Unloader Pressure Switch (UPS3)
16. Charge Isolation Valve
17. Discharge Service Port
18. Suction Service Port
19. Unloader Pressure Switch (UPS2)
20. Unloader Pressure Switch (UPS1)
21. Liquid Line Solenoid Valve
Figure 1-5. Air Conditioning Refrigerant Cycle
T-288
9
5
15
UPS3
CFS
11
14
18
3
16
2
17
1
1-10