Hose/Line HVAC: Service Precautions

Securely tighten the connecting parts to prevent leaking of refrigerant gas.
- Apply a few drops of compressor oil to 0-ring fittings for easy tightening and to prevent leaking of refrigerant gas.
- Tighten the nuts using two wrenches to avoid twisting the tube.





- Tighten the 0-ring fittings or the bolted type fittings to the specified torque.