1B-4 AIR CONDITIONING (OPTIONAL)
Refrigerant Circulation
A: Liquid
B: Vapor
C: Superheated vapor
1. Compressor
2. Magnet clutch
3. Condenser assembly
Refrigerant Type
Whether the A/C in the vehicle being serviced uses HFC-134a
(R-134a) or CFC-12 (R-12) is indicated on compressor label (1).
Also, it can be checked by the shape of the service (charge) valve
(2).
4. Receiver / dryer
5. Dual pressure switch
6. Expansion valve
7. Evaporator