High Pressure Cutout Switch Removal/Installation

Removal

  1. Isolate the compressor from the system.

    1. Front seat the discharge service valve by turning the valve fully clockwise.

    2. Front seat the suction service valve by turning the valve fully clockwise. Turn the digital service valve one quarter turn to the right.

  2. Recover the refrigerant from the compressor. Refer to (Recovering Refrigerant from System).

  3. Disconnect the high pressure cutout switch wires from the control box.

  4. Remove the high pressure cutout switch from the compressor flange.

Installation

  1. Apply Locktite sealant to the threads of the switch.

  2. Install switch in compressor flange.

  3. Pressurize the compressor with refrigerant and check for leaks.

  4. Evacuate the compressor. Refer to (Evacuation and Cleanup of Refrigeration System).

         
      1 Low Pressure Cutout Switch
      2 High Pressure Cutout Switch
      3 Discharge Service Valve
      4 Suction Service Valve
         
         
         
  5. Route wires into the control box and connect to proper terminals.

  6. Back seat the discharge service valve by turning the valve fully counter-clockwise.

  7. Back seat the suction service valve by turning the valve fully counter-clockwise.

  8. Turn the digital service valve one quarter turn to the left.

  9. Perform a controller pretrip test to verify system operation.