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87
4. Switch on the airconditioning
system,
motor speed approx. 2060 rpm. Open the
filling valve 2 and low-pressure
valve 7.
Note
Valves 6 and 7 must never be opened simul-
taneousfy when the compressor
is running.
5. Observe the sight glass in the fluid reservoir.
The filling operation is complete il no gas
bubbles are formed.
Flushing
the air-conditioning
system
with refrigerant
R 12
If humidity has entered the system during as-
sembly of the air-conditioning
system or as re-
sult of replacement
of individual parts, the fol-
lowing procedure must be followed when re-
filling the system:
5. Syphon off the refrigerant.
6. Fii new fluid reservoir.
7. Evacuate.
6. Fill
1. Connect the service unit.
2. Evacuate
3. Fill approx. 500 g refrigerant
4. Switch on the air-conditioning
system and
allow the compressor to run for approx. 1
min. Ensure that valves 6 and 7 are closed
on the service unit.
l
Flushing
the air-conditioning
system
87- 15
Printed
in Germany
- XXIV, 1989
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