Operating Principle - Waeco CoolAir CA-1000-AC Notice De Montage Et D'utilisation

_CA-1000.book Seite 34 Freitag, 28. Juli 2006 10:35 10
Technical description
4.3

Operating principle

The roof air conditioner can be used for variable air conditioning inside the
vehicle. The devices are operated by a control panel.
The air conditioner can lower the temperature within the vehicle to a
certain level. The temperature depends on the type of vehicle, the ambient
temperature and the cooling capacity of your air conditioner. The cooling
capacity of your air conditioner see chapter "Technical data" on page 49.
The refrigerant circuit of the roof air conditioner consists of four main
components:
Compressor
The compressor draws in the R134a refrigerant and compresses it. This
raises the pressure and therefore the temperature of the refrigerant.
Condenser
The built-in liquifier works like a cooler or heat exchanger. The air
flowing past absorbs the heat and the hot refrigerant gas cools down
and becomes liquid.
Vaporiser
The vaporiser cools down the air flowing past and dehydrates it. The
refrigerant absorbs the heat and vaporises. The cooled air is distributed
within the vehicle through an air outlet unit.
Capillary tube
The capillary tube reduces the refrigerant from condensor pressure to
lower vaporisation pressure.
4.4 Labels
Labels are affixed to the CA-1000-AC roof air conditioners from WAECO.
These labels provide the user and fitter with information on specifications
of the device.
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