Refrigerant Recovery

WARNING: USE EXTREME CARE AND OBSERVE ALL SAFETY AND SERVICE PRECAUTIONS RELATED TO THE USE OF REFRIGERANTS.

CAUTION: If a refrigerant recovery or recycling station is used, the following general procedures should be observed in addition to the operating instructions provided by the equipment manufacturers.

NOTE:
^ Hoses should have shut-off devices or check valves within 303 mm (12 inches) of the hose end to minimize the introduction of non-condensable gases (air) into the recovery station, as well as to minimize the amount of refrigerant released when the hoses are disconnected.
^ Follow the equipment manufacturer's procedures and instructions.







1. Connect the A/C service center hose(s) to the vehicle service gauge ports and the service center inlet fitting.
2. Turn on the power to the service center to start the recovery process. Allow the service center to recover the refrigerant from the system until the station pressure goes into a vacuum. On some equipment, the pump will be shut off automatically by a low-pressure switch in the electrical system. On other units, it may be necessary to manually turn off the pump.
3. Once the service center has recovered the vehicle A/C system refrigerant, close the service center inlet valve (if so equipped). Then switch off the power supply.
4. Allow the vehicle A/C system to remain closed for about two minutes. Observe the system vacuum level as shown on the gauge. If the pressure does not rise, disconnect the recovery station hose(s).
5. If the system pressure rises, repeat Steps 2-4 until the vacuum level remains stable for two minutes.
6. Perform the required service operations, then evacuate and recharge the A/C system.