Air Conditioning (A/C) System Recovery, Evacuation and Charging

Air Conditioning (A/C) System Recovery, Evacuation and Charging
1
WARNING: Servicing must be carried out by personnel familiar with both 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:
The desiccant bag and filter need only be changed under the following circumstances: There is dirt in the refrigerant circuit ( eg. compressor seizure ), the system is leaking and refrigerant has been lost to atmosphere, or the refrigerant circuit has been open more than 24 hours, due to repair.
Refrigerant recovery. For additional information, refer to Desiccant Bag Service and Repair




2 Remove the dust covers from the high and low pressure connections.
3 Connect the high and low pressure lines to the appropriate connections.
4
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. R143a Refrigerant Recover 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 vehicles air conditioning systems.
Following the manufacturer's instructions, recover the refrigerant from the A/C system.
5 Measure and record the quantity of refrigerant oil recovered from the system.
6 Evacuation.




7 Remove the dust covers from the high and low pressure connections.
8 Connect the high and low pressure lines to the appropriate connections.
9 Following the manufacturer's instructions, evacuate the A/C system.

10
CAUTION: The system must be evacuated immediately before recharging commences. Delay between evacuation and recharging is not permitted
Recharging

11 Ensure the correct amount of oil is added to the A/C system before or during recharging.

12 Recharge the A/C system to the correct specification.For additional information, refer to Specifications Specifications