Volkswagen Golf Service & Repair Manual: Distribution of the refrigerant circuit components and their influence on
the high-pressure and low-pressure sides
| On the high-pressure side, there are the condenser, the
receiver and the restrictor or expansion valve that acts as the
separation between the high-pressure fluid and low-pressure
fluid sides. |
| High pressure is created because the restrictor or expansion
valve forms a restriction and holds back the refrigerant,
leading to increased pressure and temperature. |
| Excessive pressure results if the circuit is filled with too
much refrigerant or refrigerant oil, or the condenser is dirty,
the radiator fan is defective, there is a blockage in the system
or there is moisture in the refrigerant circuit (causing the
restrictor or expansion valve to ice up). |
| On the low-pressure side, there are the evaporator, the
reservoir, the temperature sensor for the evaporator and the air
conditioner compressor that acts as the separation between the
high-pressure and low-pressure gas sides. |
| A loss of pressure in the system can be due to loss of
refrigerant, restrictor or expansion valve failure (not creating
a restriction), defective air conditioner compressor or an
iced-up evaporator. |
|
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Caution
Non-authorised tools or materials (e.g. leak
inhibitor additive) may cause damage or adversely
influence t ...
The air conditioner compressor is driven by a V-belt from
the engine.
An electromagnetic clutch is fitted to the air conditioner
compressor. Wh ...
Other materials:
Spray can filling device -VAS 6425
Designation:
Spray can filling device -VAS 6425-
Product description
The spray can filling device is a pneumatic filling device
for filling paint spray cans with premixed base coats and top
c ...
Connecting air conditioner service station
For vehicles that have connections on both
low-pressure and high-pressure sides of refrigerant circuit
Connecting air conditioner service
station for measuring and checking
–
Switch off ig ...
Assembly overview - lock carrier, NAR
1 -
Lock carrier with add-on parts
Removing and installing
→ Chapter
Moving to and back from service position
→ Chapter
2 -
Mounting plate
Left and right
3 -
Air guide
...
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Refrigerant circuit components
Air conditioning system compressor with magnetic clutch