Empty Refrigerant System Leak Test

1. Evacuate the refrigerant system (minimum evacuation time of 15 mm.) to the lowest degree of vacuum possible (approx. 28 in Hg.). Determine if the system holds a vacuum for at least 15 minutes after pump is off. If vacuum is held, a leak is probably not present. If system will not maintain vacuum level, proceed with this procedure.
2. Prepare a.284 Kg. (10 oz.) refrigerant charge to be injected into the system.
3. Connect and dispense 284 Kg. (10 oz.) of refrigerant into the evacuated refrigerant system.
4. Proceed to Step 2 of Low Refrigerant Level Leak Test.