Operation CHARM: Car repair manuals for everyone.

Topping Up the Air-Conditioning System




REFILLING AIR-CONDITIONING SYSTEM

If gas bubbles are visible in the fluid tank viewing glass when the system is on, the system does not contain sufficient refrigerant. The system must not be drained in order to refill.

1. Rectify any leakage.




2. Fasten "Chargefaster" filling aid to connection nipple 5 (low pressure) with the help of the angle piece.

The filling aid can remain permanently connected as a component of the service unit.

3. Connect fill hose between filling aid on service unit and valve on vacuum line. Slightly open valves 2 and 7 on the service unit in order to evacuate the fill hose through the refrigerant flowing out. All other valves on the service unit must remain closed.

4. Switch on air conditioner. Engine speed approx. every 2000 rpm. Open filling valve 2 and low-pressure valve 7.

5. Observe viewing glass in fluid reservoir. When there is no longer any gas-bubble formation, refill is complete.

Note: While the compressor is running, valves 6 and 7 must never be opened simultaneously.