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)