Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 394

HEATER, AIR CONDITIONER AND VENTILATION
Low-pressure
Vacuum pump
service valve
Adaptor valve
Service can
(Refrigerantcontainer)
Low-pressure
service valve
12. Turn the vacuum pump adaptor switch to the R134a side
13. Evacuate to a vacuum reading of 100 kPa or higher (takes
14. Turn the vacuum pump adaptor switch OFF and allow
15. Carry out a leak test. (Good if the negative pressure
16. With the handle turned back all the way (valve open),
Valve open
17. Turn the handle of the adaptor valve back all the way
Valve close
18. Tighten the handle of the charging valve (valve closed)
Charging
valve
Service can
19. Turn the handle of the charging valve back (valve open)
Charging valve
20. If the refrigerant is not drawn in, turn the handle of the
21. Check for gas leaks using a leak detector.
22. Start the engine.
23. Operate the A/C and set to the lowest temperature (MAX.
–
On-vehicle Service
to start the vacuum pump.
Caution
Do not operate the compressor for evacuation.
approx. 10 minutes).
to stand it for 5 minutes.
Caution
Do not operate the compressor in the vacuum
condition; damage may occur.
does not drop.)
Caution
If the negative pressure drops, increase the tightness
of the connections, and then repeat the evacuation
procedure from step (12).
install the charging valve to the service can.
(valve closed), remove it from the gauge manifold and
install the service can.
to puncture the service can.
and tighten the handle of the adaptor valve (valve open) to
charge the system with refrigerant.
Caution
If the service can is inverted, liquid refrigerant may
be drawn into the compressor damaging it by liquid
compression. Keep the service can upright to ensure
that refrigerant is charged in gas state.
adaptor valve back all the way (valve closed).
If a gas leak is detected, re-tighten the connections, and
then repeat the charging procedure from evacuation in
step (12).
Caution
The leak detector for R-134a should be used.
COOL).
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