L322 Range Rover Service Procedures
AIR CONDITIONING
REFRIGERANT RECOVERY, RECYCLING AND RECHARGING
82-1
AIR CONDITIONING
REFRIGERANT RECOVERY, RECYCLING AND RECHARGING
Refrigerant recovery - recycling and
recharge
$% 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.
M82 0740
