Refrigerant Circuit With RESTRICTOR And Reservoir
WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2016 Audi S4, 2016 Audi A4 Quattro, 2016 Audi A4, 2015 Audi S4, and 2015 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
HP- High pressure side of refrigerant circuit.
LP- Low pressure side of refrigerant circuit.
| Component | Aggregate state of refrigerant | Pressure (positive pressure) | Temperature in °C (°F) |
|---|---|---|---|
| -1- A/C compressor, HP side | Gas | up to 20 bar (290 psi) | up to 70 °C (158 °F) |
| -2- Condenser | From gas to vapor to fluid | up to 20 bar (290 psi) | up to 70 °C (158 °F) |
| -3- Restrictor | From fluid to vapor | HP side up to 20 bar (290 psi) LP side greater than 1.0 bar (14.5 psi) | HP side up to + 60 °C (140 °F) LP side warmer than -4 °C (25 °F) |
| -4- Evaporator | From vapor to gas | greater than 1.0 bar (14.5 psi) | Warmer than -4 °C (25 °F) |
| -5- Reservoir | Gas | ||
| -6- A/C compressor low pressure side | Gas |
Pressures on A-side are maintained at approximately 2 bar (29 psi) absolute pressure (corresponds to approximately 1 bar (14.5 psi) positive pressure) by "regulating" A/C compressor also at various engine speeds. However, this applies only within the performance range of the A/C compressor; if the performance limits of the A/C compressor are exceeded. Refer to PRESSURES, CHECKING .
NOTE:
In vehicles with A/C Compressor Regulator Valve -N280-, the pressure is modified on the low pressure side by the valve.
Arrows point in direction of refrigerant flow.
HP- High pressure side of refrigerant circuit.
LP- Low pressure side of refrigerant circuit.
- A/C Compressor, HP Side
- Condenser
- Restrictor
- Evaporator
- Reservoir
- A/C Compressor, LP side