Refrigerant Circuit With Expansion Valve

Refrigerant Circuit With Expansion Valve

HP(HD) High pressure side of refrigerant circuit

LP(ND) Low pressure side of refrigerant circuit







NOTE:
- Non self-regulating compressors are switched off by the relevant control module via the A/C Compressor Regulator Valve N280 at evaporator temperatures below 0 degree C.
- On vehicles with A/C Compressor Regulator Valve N280 the pressure on the low pressure side is altered by actuating the valve.







1 - Evaporator, from inlet to outlet
2 - Compressor, LP (ND) side
3 - Compressor, HP (HD) side
4 - Condenser
5 - Receiver
6 - Inspection port (not on all vehicles)
7 - Charging and extraction valve HP (HD)
8 - Expansion valve
9 - Charging and extraction valve LP (ND)