Refrigerant Recovery Procedure - Subaru 2009 IMPREZA Service Manual

3. Refrigerant Recovery
Procedure
A: PROCEDURE
CAUTION:
• During operation, be sure to wear protective
goggles and protective gloves.
• Connect the refrigerant recovery system with
the manifold gauge set to discharge the refrig-
erant from the A/C system and recycle the gas.
• When recycling the discharged refrigerant,
keep service cans on hand. Because the recov-
ery rate with the recovery system is approx.
90%, service cans are necessary to charge the
refrigerant.
• Follow the detailed operation procedure de-
scribed in the operation manual attached to the
refrigerant recovery system.
1) Perform compressor oil return operation. <Ref.
to AC-26, PROCEDURE, Compressor Oil.>
2) Stop the engine.
3) Make sure the valves on low/high pressure sides
of manifold gauge set are fully closed.
L
(1)
(4)
(2)
(1)
L: Low pressure gauge
H: High pressure gauge
(1) Low pressure valve
(2) Vacuum pump valve
(3) High pressure valve
(4) For low pressure
(5) For vacuum pump
(6) For high pressure

Refrigerant Recovery Procedure

H
(3)
(6)
(5)
(3)
(2)
AC-00146
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
4) Install the low/high pressure hoses to the service
ports on the low/high pressure sides of the vehicle
respectively.
(1)
(1) Low-pressure side service port
(2) High-pressure side service port
(3) Close
5) Connect the center hose to the refrigerant recov-
ery system.
6) Follow the operation manual to activate the re-
frigerant recovery system.
AC-21
(2)
(3)
AC-00147