Operation CHARM: Car repair manuals for everyone.

Refrigerant Circuit With Restrictor and Reservoir



Refrigerant Circuit With Restrictor And Reservoir

Arrows point in direction of refrigerant flow.

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










Pressures on A-side are maintained at approx. 2 bar 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.

NOTE: In vehicles with A/C Compressor Regulator Valve N280, pressure is modified on the low pressure side by the valve.