Adding Refrigerant

Adding Refrigerant

- The air conditioning system must contain a full refrigerant charge before an accurate system check can be made. An insufficient charge is indicated in the sight glass by a stream of bubbles or foam.

- Attach and operate the evacuation/recharge equipment being used per the manufacturer's instructions. Add refrigerant until the sight glass clears or the gauge readings are normal.

- Stabilize the system and check for normal charge.