High Pressure Safety Valve HVAC: Service and Repair

Compressor Pressure Relief Valve Replacement (HT6/HD6)

REMOVAL PROCEDURE

TOOLS REQUIRED
J 39500-B R-134a A/C Refrigerant Recovery, Recycling and Recharging System (ACR4)

1. Recover the refrigerant using the J 39500-B.
2. Remove the old pressure relief valve (5).

INSTALLATION PROCEDURE

TOOLS REQUIRED
J 39500-B R-134a A/C Refrigerant Recovery, Recycling and Recharging System (ACR4)

1. Clean the valve seat area on the rear head.
2. Lubricate the O-ring of the new pressure relief valve (5) and the O-ring assembly using new 525 Viscosity refrigerant oil.

NOTE: Refer to Fastener Notice in Service Precautions.

3. Install the new pressure relief valve (5).

Tighten
Tighten the new valve to 9.0 N.m (6.1 lb ft).

4. Evacuate and recharge the system using the J 39500-B.
5. Leak test the system.