Refrigerant: Service and Repair

Refrigerant Recovery - Recycling And Recharge


Service repair No - 82.30.02

Refrigerant recovery
1. Recover refrigerant.


WARNING: Servicing must only be carried out by personnel familiar with both the vehicle system and the charging and testing equipment. All operations must be carried out in a well ventilated area away from open flame and heat sources.


NOTE: Receiver drier need only be changed under the following circumstances. There is dirt in the refrigerant circuit ( e.g. compressor seizure). The system is leaking and refrigerant has been lost to atmosphere Refrigerant circuit has been open more than 24 hours due to repair.







2. Remove dust caps from high and low pressure connectors.
3. Connect high and low pressure hoses to appropriate connections.
4. Open valves on connectors.
5. Turn valves on refrigerant station to correct positions.
6. Turn process switch to correct position.
7. Turn Main switch to 'ON'.
8. Allow station to recover refrigerant from system.


WARNING: Refrigerant must always be recycled before re-use to ensure that the purity of the refrigerant is high enough for safe use in the air conditioning system. Recycling should always be carried out with equipment which is design certified by Underwriter Laboratory Inc. for compliance with SAE J1991. Other equipment may not recycle refrigerant to the required level of purity. A R134a Refrigerant Recovery Recycling Recharging Station must not be used with any other type of refrigerant. Refrigerant R134a from domestic and commercial sources must not be used in motor vehicle air conditioning systems.


9. Close valves on refrigerant station.
10. Turn Main switch to 'OFF'.
11. Close valves on connectors.
12. Disconnect high and low pressure connectors.
13. Fit dust caps to connectors.
14. Open tap at rear of station to drain refrigerant oil.
15. Measure and record quantity of refrigerant oil recovered from system.
16. Close tap at rear of station.

Evacuation
1. Remove dust caps from high and low pressure connectors.
2. Connect high and low pressure hoses to appropriate connections.
3. Open valves on connectors.
4. Turn valves on refrigerant station to correct positions.
5. Turn Process switch to correct position.
6. Turn Main switch to 'ON'.
7. Allow station to evacuate system.


Recharging
1. Recharge A/C system.


CAUTION: The system must be evacuated immediately before recharging commences. Delay between evacuation and recharging is not permitted.


2. Close valves on refrigerant station.
3. Close valve on oil charger.
4. Disconnect yellow hose from refrigerant station.
5. Remove lid from oil charger.
6. Pour same quantity of refrigerant oil into oil charger as collected during recovery. If the following components have been removed, add the following additional quantity of lubricating oil:
- Condenser = 30 cubic centimeter.
- Desiccant bag = 30 cubic centimeter.
- Evaporator = 20 cubic centimeter.
- Pipe/hose= 10 cubic centimeter.
7. Fit lid to oil charger.
8. Connect yellow hose to refrigerant station.
9. Open valve on oil charger.
10. Move pointer on refrigerant gauge to mark position of refrigerant drop.
11. Slowly open correct valve on refrigerant station and allow vacuum to pull refrigerant into system.
12. Close valve on refrigerant station when correct amount of refrigerant has been drawn into air conditioning system.
13. Turn Main switch to 'OFF'.
14. Close valves on connectors.
15. Disconnect high and low pressure connectors.