Compressor Fitting HVAC: Description and Operation

Valve Service Ports:

HIGH SIDE
The A/C service port valve cores are located within the A/C lines. The High Side (Discharge) valve service port is located on the liquid line near the right frame rail. The High Side service port is a two piece port and is serviceable.

LOW SIDE
The Low Side (Suction) valve service port is located on the suction line near the compressor.The Low Side service port is not serviceable, the suction line would have to be replaced.