High Pressure Safety Valve HVAC: Service and Repair
COMPRESSOR PRESSURE RELIEF VALVE REPLACEMENTREMOVAL PROCEDURE
1. Remove the engine cover.
2. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging. Service and Repair
3. Clean the valve seat area on the rear head.
4. Remove the pressure relief valve (1).
INSTALLATION PROCEDURE
1. Lubricate the O-ring of the new pressure relief valve (1) using new 525 viscosity refrigerant oil.
NOTE: Refer to Component Fastener Tightening Notice in Service Precautions.
2. Install the pressure relief valve (1).
Tighten
The pressure relief valve to 9 N.m (80 lb in).
3. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging. Service and Repair
4. Ensure that no leaks exist in the system. Refer to Leak Testing in Heating and Ventilation and Air Conditioning. Leak Testing
5. Install the engine cover.