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Service Valves

Fig 1: Identifying Service Valves
GLL145805Courtesy of VOLVO CARS CORPORATION
  1. The service valve for draining, vacuum pumping and filling with refrigerant
  2. Service valve for draining and vacuum pumping.

The service valves are used to:

CAUTION:

Filling with refrigerant must only be carried out on the high-pressure side to prevent the risk of liquid refrigerant in the compressor.