A3 Mk1
|
| Component | State of refrigerant | Pressure (bar) | Temperature in degrees centigrade |
| -1- Air conditioner compressor/high-pressure end | Gas | Up to 20 bar | Up to +70 °C |
| -2- Condenser | From gas to vapour to liquid | Up to 20 bar | Up to +70 °C |
| -3- Restrictor | From liquid to vapour | HP side up to 20 bar, LP side greater than 1.0 bar | HP end up to +60 °C LP end warmer than -4 °C |
| -4- Evaporator | From vapour to gas | Greater than 1.0 bar | Warmer than -4 °C |
| -5- Reservoir | Gas | ||
| -6- Air conditioner compressor/low-pressure end | Gas |
| The pressures on the low-pressure end are maintained at approx. 2 bar absolute (corresponding to approx. 1 bar gauge) by the „regulating“ air conditioner compressor even at varying engine speeds. This applies however only within the rated range of the air conditioner compressor ; if the rated range of the air conditioner compressor is exceeded, the pressure will increase → Chapter. |
Note| On vehicles with air conditioner compressor regulating valve -N280- the pressure on the low pressure end is altered by actuating the valve. |
| Arrows show direction of refrigerant flow. |
| HP – High-pressure side of refrigerant circuit |
| LP – Low-pressure side of refrigerant circuit |
| 1 - | Air conditioner compressor/high-pressure end |
| 2 - | Condenser |
| 3 - | Restrictor |
| 4 - | Evaporator |
| 5 - | Reservoir |
| 6 - | Air conditioner compressor/low-pressure end |
