Subaru Legacy 2002 Service Manual page 2758

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19) If the HFC-134a source is empty, close the

high-pressure valve, close the valve on the can

tap, and replace the HFC-134a source with a new

one to restart the operation.

20) Confirm that both the high/low-pressure

valves can be closed. Start the engine with the A/C

21) Quickly repeat ON-OFF cycles a few times to

prevent initial compressor damage.

22) Set up the vehicle to the following status:

¼ A/C switch ON

¼ Engine running at 1,500 rpm

¼ Blower speed setting to "HI"

¼ Temperature setting to "MAX COOL"

¼ Air inlet setting to "RECIRC"

¼ Windows open

23) While reading the low-pressure gauge, care-

fully open the low-pressure valve with the refriger-

ant source connected and the service hose

Never open the high-pressure valve with the

engine running.

24) Adjust the refrigerant flow to maintain the

pressure on the low-pressure side at 276 kPa (2.81

, 40 psi) max.

25) After the system is fully charged, close the

low-pressure valve.

REFRIGERANT CHARGING PROCEDURE

HVAC System (Heater, Ventilator and A/C)

26) Close the valve on the refrigerant source.

27) Disconnect the hose from the service port,

and install the service port cap.

Refrigerant amount

0.6 kg (1.3 lb)

0.7 kg (1.5 lb)

0.4 kg (0.9 lb)

0.5 kg (1.1 lb)

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