Bringing Air Conditioning System Into Service After Charging - Volkswagen Amarok 2011 Workshop Manual

Amarok 2011 ➤ , Beetle 2012 ➤ , Bora 1999 ➤ , CC 2010 ➤ , CC 2012 ➤ , ...
Air conditioning system with refrigerant R134a - Edition 10.2014
– Turn handwheel of quick-release coupling adapters outwards
(close).
– Allow refrigerant to flow into charging hose.
– Turn handwheel of quick-release coupling adapter inwards (do
not overstress the valve) and charge system with prescribed
quantity of refrigerant.
– Switch off air conditioner service station.
Note
If the air conditioner compressor was removed, the V-belt pulley /
freewheel must be turned by hand approx. 10 times prior to initial
operation. This does not apply for the electrical air conditioner
compressor. This prevents any damage occurring from a fluid
hammer in the air conditioner compressor when the air condition‐
ing system is switched on for the first time. If there is oil in the
cylinder of the air conditioner compressor, it will be forced out by
the rotation.
– Start with engine with air conditioner compressor switched off
(if it is the type with a magnetic clutch).
– Set air conditioner compressor to lowest possible setting; se‐
lect "ECON" mode or "A/C Off" (if version without magnetic
clutch, but with regulating valve).
– Wait until idling speed has stabilised.
– Switch air conditioner compressor on and let system run for at
least 2 minutes with engine idling.
– If necessary, check pressures in refrigerant circuit using air
conditioner service station.
– Switch off engine.
– Turn out handwheel on quick-release coupling adapter.
– Detach the charging hose from the refrigerant circuit.
– Screw on sealing caps again.
5.6 Bringing air conditioning system into
service after charging
Note
If the air conditioner compressor was removed, the V-belt pulley /
freewheel must be turned by hand approx. 10 times prior to initial
operation. This prevents any damage occurring from a fluid ham‐
mer in the air conditioner compressor when the air conditioning
system is switched on for the first time. If there is oil in the cylinder
of the air conditioner compressor, it will be forced out by the ro‐
tation.
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Rep. gr.00 - Technical data