Isolate Compressor

The discharge suction and digital ball service valves isolate the compressor from the high and low sides of the refrigeration system. Compressor isolation is needed for system diagnosis, service, and repair.

Note The valves are a permanently assembled unit and must be replaced in total if defective. The only maintenance possible on the discharge or suction service valve is to periodically tighten the packing nut or to replace the packing.

    Warning
  • Hazard of Explosion
  • Do not start unit with discharge valve in front seated position.
Service Valve Back Seated (Operating Position)
      
  1 Full Counterclockwise
     
     
     
     
     
     
Service Valve Open to Port (Servicing Position)
      
  1 1/2 Turn In
     
     
     
     
     
     
Service Valve Front Seated (Check or Remove Compressor)
      
  1 Full Clockwise
     
     
     
     
     
     
Parent topic: Refrigeration Maintenance