Valeooscope - Air Conditioning System Thermal comfort loop

10.2.2 The complete loop

The air conditioning loop is made up of:

The figure below shows temperatures, pressures and fluid state in the A/C loop. Pressure and temperature values change according to heat exchanges in the two exchangers and, in more general terms, also depends on the state of the system at a given point in time.

Five main components: The compressor, the condenser, the filter or receiver drier, the expansion valve and the evaporator. Two safety devices: The pressure switch and the evaporator probe. Two ventilation devices: The cooling fan, which feeds air to the condenser, and the blower, which blows air into the cabin. One element that filters the air entering the cabin: The cabin air filter.

Evaporator

Expansion valve

Blower

Condenser

Liquid - HP Medium T°

Gaz - HP High T°

Receiver drier

Gas - LP Low T°

Compressor

A/C loop temperature and pressure levels

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