Service Port HVAC: Service and Repair

Fig.14 A/C System Service Ports:

REMOVAL
These engines service port valve cores are located on the top of the manifold (High Side) and front side of the manifold (Low Side).

1. Remove the valve caps. Recover the refrigerant.
2. Using a standard valve core tool, remove the valve core. Be careful to prevent any dirt/debris from entering the valve core opening or getting on the replacement valve core.

CAUTION:
- A valve that is not fully seated can lead to damage to the valve during evacuation and charge. This can result in system refrigerant discharge while uncoupling the charge adapters.

INSTALLATION

NOTE: When assembling the new valve core into the fitting, the core should be oiled with clean ND8 PAG compressor oil.

1. Install the new valve core into the fitting.
2. Evacuate the refrigerant system.
3. Charge the refrigerant system.
4. Install the valve caps.