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