Volkswagen Golf Service & Repair Manual: Connections to valves for switches in the refrigerant circuit
WARNING
| Danger of freezing injuries. |
| If refrigerant circuit has not been evacuated,
refrigerant will escape. |
| The refrigerant must be extracted before the valve
-C- is removed. If the
refrigerant circuit is not opened within 10 minutes
after it has been evacuated, pressure may develop in
coolant circuit due to re-evaporation. Extract
refrigerant again. |
|
| The switches on the high-pressure and low-pressure sides
have different threads. |
|
|
|
| Use only valves and O-rings that are resistant to
refrigerant R134a and its associated refrigerant oils. |
| A - |
Connection (soldered in) |
|
|
|
Function:
In the event of pressure loss in the refrigerant circuit,
switches the air conditioner compressor off (at approx. 2 bar).
...
This pressure switch has 3 functions:
1. Switches radiator fan to next higher speed when pressure
increases in refrigerant circuit (approx. 16 bar).
...
Other materials:
Coming Home and Leaving Home functions (orientation lighting)
First read and observe the introductory information
and safety warnings The Coming Home function is switched on manually. However,
the Leaving Home function is controlled automatically by a twilight sensor.
Coming Home
Action
Switching on
...
Removing and installing lock cylinder
Removing and installing lock cylinder
Special tools and workshop equipment
required
Note
The removal and installation sequence is only for the
left lock ...
Introduction
This chapter contains information on the following subjects:
→ Function and operation by the user
The Driver Alert System informs the driver if his or her driving shows signs
of tiredness.
Additional information and warnings:
Infotainment system
Accessories, modifica ...
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Low-pressure switch for air conditioning system -F73
Air conditioning system pressure switch -F129