Discharging the System

Discharging the System
Discharge the refrigerant from the system into an approved recovery unit. With the exception of the A/C pressure switch, be sure to discharge the system before removing any other part.

1. Remove the valve caps from the high and low pressure service gauge ports.
2. Turn both gauge valves fully clockwise to close the high and low pressure hoses to the center hose.
3. Connect the gauge set high and low pressure hoses, with adapters, to the respective high and low pressure service gauge ports.
4. Slowly depressurize the refrigeration system by opening the low pressure valve of the gauge set a slight amount and allow the refrigerant to discharge slowly from the system.
5. After the system is nearly discharged, open the high pressure gauge valve very slowly to avoid losing any refrigerant oil while still allowing any refrigerant remaining in the compressor and high pressure line to discharge.