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:
Renewal of aerial wiring
A new approach to repair work on aerial wires has been
developed
→ Chapter.
Now connecting wires in different lengths and various
adapter cables are available as replacement parts instead of a
complete aerial wire.
...
Removing and installing holder for heater and air conditioning unit
Note
Leave the holders in the vehicle on removing the heater and
air conditioning unit. The illustration shows a left-hand drive
vehicle.
Removing
–
Re ...
Assembly overview - lower rear lid trim
1 -
Rear lid
2 -
Bolt
Qty. 4
1.5 Nm
3 -
Lower rear lid trim
Removing and installing
→ Chapter
4 -
Retaining clip
Insert into trim
Remove any retaini ...
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Evaporator output temperature sender -G263- or evaporator temperature sensor
-G308
Refrigerant circuit with expansion valve