Purging Compressor

The compressor must be purged of air whenever it has been isolated from the system for service.
1. Install oil plugs or reconnect refrigerant lines and manual valves to compressor as needed.
2. Cap service access ports on both manual valves, then rotate low (suction) side service valve counterclockwise to the back-seated position.
3. Rotate high (discharge) side manual valve to mid-position, then slightly loosen cap on high side gauge port to allow refrigerant to force air out of compressor.
4. Back seat high side manual valve, then tighten gauge port cap.