Compressor Fitting HVAC: Testing and Inspection

A/C MANIFOLD AND TUBE LEAK TEST
1. Tighten the manifold retaining bolt to 18-23 N.m (14-16 lb-ft).
2. Add refrigerant to the system if necessary.
3. Leak test the manifold O-ring seals using Rotunda R-134a Automatic Calibration Halogen Leak Detector 023-R1003 or equivalent.
4. If no leaks are found, the manifold O-ring seals are good.
5. If a leak is found at the A/C manifold and tube and the manifold retaining bolt is tightened to 18-23 N.m (14-16 lb-ft), install new manifold O-ring seals. Service and Repair Repeat the leak test.