Compressor
A new compressor is used in vehicles with air conditioning (illustration E 2306). It is attached
to the engine and is driven by a ribbed V-belt with automatic tensioner.
The positive engagement between pulley and compressor is enabled by a magnetic clutch.
The switches for the auxiliary fan, low pressure safety and high pressure safety are now located
in a triple switch in the high pressure line.
1 Safety valve
2 Fluid drain screw
3 Magnetic coupling plug contact
4 Pulley with magnetic coupling
5 Output to condenser
6 Input from evaporator
7 Control valve
| Fehler! Datei kann nicht geöffnet werden! | |||
|---|---|---|---|
| .P. E2306.tif | 9 | 7,5 | tiff;; |
· Service
Service operations on the compressor are limited to replacement of the control valve, the safety valve and the pulley/magnetic coupling assembly. When installing this assembly, ensure that the reference gap (1) between pulley and magnetic coupling is maintained.
The reference gap (1) is 0.4 to 1.0 mm/0.016 to 0.039 in.
| Fehler! Datei kann nicht geöffnet werden! | |||
|---|---|---|---|
| .P. E2307.tif | 9 | 7,5 | tiff;; |
Triple Switch
The triple switch (1) contains:
- Low pressure safety switch
- High pressure safety switch
- Auxiliary fan switch
The triple switch is installed in the high pressure line between the compressor and the condenser.
It responds to three different pressure levels in the high pressure line and then switches to the relevant circuit.
| Fehler! Datei kann nicht geöffnet werden! | |||
|---|---|---|---|
| .P. E2308.tif | 9 | 7,5 | tiff;; |
· Service
| Switch Pressures | On | Off |
|---|---|---|
| Low pressure safety switch | 250 kPa | 180 kPa |
| High pressure safety switch | 2000 kPa | 3000 kPa |
| Auxiliary fan switch | 1900 kPa | 1500 kPa |
There is a more detailed function description of the compressor and the triple switch in the"New Technical Features and Information, Product Description, Model Year 1993", Astra-F brochure.