Refrigerant System Empty

1. Evacuate the refrigerant system to the lowest degree of vacuum possible (approx. 28 in Hg.). Determine if the system holds a vacuum for 15 minutes. If vacuum is held, a leak is probably not present. If system will not maintain vacuum level, proceed with this procedure.
2. Prepare a 0.284 Kg. (10 oz.) refrigerant charge to be injected into the system.
3. Connect and dispense 0.284 Kg. (10 oz.) of refrigerant into the evacuated refrigerant system.
4. Proceed to the Low Refrigerant Level Leak Test.