High Pressure Safety Valve HVAC: Service and Repair

Compressor Pressure Relief Valve Removal

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure




1. Recover the refrigerant from the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).

Important: Immediately cap or tape the open A/C compressor opening immediately in order to prevent system contamination.


2. Remove the high pressure relief valve (1).
3. Remove and discard the O-ring seal (2).
4. Cap or tape the pressure relief valve port.

Installation Procedure




1. Lubricate and install the NEW O-ring seal (2). Refer to O-Ring Replacement (O-Ring Replacement).
2. Remove the cap or tape from the pressure relief valve port.
Notice: Refer to Fastener Notice (Fastener Notice).

3. Install the high pressure relief valve (1).

Tighten the valve to 12 N.m (106 lb in).

4. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).
5. Leak test the fitting of the component usingJ 39400-A.