Discharging Refrigerant System

DISCHARGING THE REFRIGERATION SYSTEM





1. Connect the manifold gauge set to the system
2. Place the free end of the center hose on a shop towel.
3. Slowly open the high-pressure hand valve to adjust the refrigerant flow. Open the valve only slightly.

NOTE: If refrigerant is allowed to escape too fast, compressor oil will be drawn out of the system

4. Check the shop towel to mark sure no oil is being discharged. If oil is present, partially close the hand valve.
5. After the manifold gauge reading drops below 344 kPa (3.5 kg/Sq.cm, 50 psi), slowly open the low-pressure hand valve.
6. As the system pressure drops, gradually open both the high and the low-pressure hand valves until both gauges read 0 kPa (0 kg/Sq.cm, 0 psi).