Volkswagen Golf Service & Repair Manual: Pressures and temperatures in the refrigerant circuit
WARNING
| When working on the refrigerant circuit, observe
generally applicable safety rules and the Regulations
for Pressure Tanks. |
|
| The pressures and temperatures in the refrigerant circuit
depend on the momentary operating conditions (e.g. engine speed,
speed 1, 2, or 3 of radiator fan, engine temperature, whether
air conditioner compressor is on or off) as well as
environmental influences (e.g. ambient temperature, humidity,
required cooling output). |
| In vehicles with air conditioner compressor regulating valve
-N280-, the pressure on the low-pressure side is varied by
activating the valve. |
| Therefore, the values given in the following tables may only
be considered as guidelines. They occur at an engine speed of
1,500 to 2,000 rpm and an ambient temperature of 20°C after
about 20 minutes. |
| The locations of connections provided for pressure
measurements can be found in the vehicle-specific coolant
circuits. |
| At 20°C and with the engine stopped, the refrigerant circuit
will adjust itself to a pressure of 4.7 bar positive pressure
→ Chapter. |
|
|
|
Function:
The evaporator output temperature sender -G263- or
evaporator temperature sensor -G308- reads the temperature
downstream from the eva ...
A- low-pressure side of the refrigerant circuit.
B- high-pressure side of the refrigerant circuit.
...
Other materials:
Removing and installing upper steering column trim
Special tools and workshop equipment
required
Removal wedge -3409-
Removing
–
Release locking lever of steering wheel pos ...
Removing and installing dip beam screen motor -V294-/-V295
Note
Left dip beam screen motor -V294- and right dip beam screen
motor -V295- are only fitted on gas discharge headlights without
cornering light.
The dip beam screen motor is located in the headlight and
canno ...
The dangers of assuming an incorrect sitting position
First read and observe the introductory information
and safety warnings If the seat belts are not worn or are worn incorrectly,
the risk of severe or fatal injuries increases. Seat belts can only provide optimal
protection if the seat belt routing is correct. Assuming an incorrect sitting po ...
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Evaporator output temperature sender -G263- or evaporator temperature sensor
-G308
Refrigerant circuit with expansion valve