Roomster
| Pressures, temperatures and arrangement of the refrigerant circuit with expansion valve |
| Component | Aggregate state of refrigerant | Pressure (bar overpressure) | Temperature in Celsius |
| Evaporator -13-, from inlet to outlet | Vapour | approx. 1.2 bar1) | approx. -7 °C 2) |
| Expansion valve -12- | Liquid, released in vapour | approx. 14 bar | approx. +55°C (high pressure side), reduced to -7°C (low pressure side) |
| High pressure switch / high pressure sender -6- | Liquid | approx. 14 bar | approx. +55 °C |
| Service connection - high pressure side -10- and fluid reservoir -9- | Liquid | approx. 14 bar | approx. +55 °C |
| Condensor -8- | from gas (at the inlet) via vapour to liquid (at the outlet) | approx. 14 bar | from approx. +65°C (at the inlet) to approx. +55°C (at the outlet) |
| Pressure relief valve -5- and air conditioning compressor - high pressure side | Gas | approx. 14 bar | approx. +65 °C |
| Air conditioning compressor - low pressure side | Gas | approx. 1.2 bar1) | approx. -1 °C 2) |
| Service connection - low pressure side -14- | Gas | approx. 1.2 bar1) | approx. -1 °C 2) |
| 1) In refrigerant circuits with regulated AC compressor, the pressure is maintained at approx. 2 bar absolute pressure (corresponds to approx. 1 bar overpressure) despite the varying heat transfer and different engine speeds. This is only valid within the performance range of the AC compressor; in the event the performance range of the AC compressor is exceeded, the pressure rises → Chapter. |
| 2) In refrigerant circuits with regulated AC compressor, the temperature is maintained within the performance range of the AC compressor despite the varying heat transfer and different engine speeds. This is only valid within the performance range of the AC compressor. If the performance ranges of the AC compressor are exceeded, the temperature rises → Chapter. |
| HP = High-pressure side |
| LP = Low-pressure side |
| 1 - | Regulating valve for compressor of air conditioning system - N280- |
| 2 - | Compressor |
| 3 - | Belt pulley |
| q | with anti-lock device |
| 4 - | Oil drain plug |
| 5 - | Pressure relief valve |
| 6 - | High-pressure sender -G65- |
| 7 - | Connection with valve |
| 8 - | Condenser |
| 9 - | Fluid reservoir with dessicator |
| 10 - | Extractor, filler and measurement valve |
| q | High-pressure side |
| 11 - | Screw cap |
| 12 - | Expansion valve |
| 13 - | Evaporator |
| 14 - | Extractor and measurement valve |
| q | Low-pressure side |
| 15 - | Screw cap |
| 16 - | Shock absorber |
| q | for damping of pressure fluctuations |
| q | only fitted on certain models |
