Refrigerant Circuit With Expansion Valve

Refrigerant Circuit With Expansion Valve

A-Low pressure side of refrigerant circuit.
B-High pressure side of refrigerant circuit.












- Pressure in refrigerant circuits is maintained at approx. 2 bar, regulated by A/C compressor, even though heat transfer changes and engine speeds vary. However, this applies only within the performance range of the A/C compressor; if the performance limits of the A/C compressor are exceeded, the pressure increases Pressures, checking on vehicles.
- Within the control range of the A/C compressor, temperature in the refrigerant circuits is maintained, regulated by A/C compressor, even though heat transfer changes and engine speeds vary. However, this applies only within the performance range of the A/C compressor; if the performance limits of the A/C compressor are exceeded, the temperature increases.
- Measured values for A/C systems with two evaporators.

NOTE:
- A/C compressors which do not regulate their performance are switched off by the respective control module via the A/C Compressor Regulator Valve N280 at an evaporator temperature below 0 degree C.
- In vehicles with A/C Compressor Regulator Valve N280, pressure is modified on the low pressure side by the valve.