3309924 - E6020 AIR CONDITIONING - Description (Euro 3)
Description
An automatic system manages the climate
control in the passenger compartment, i.e. temperature and ventilation,
with recirculation and air flow orientation.A dedicated control unit manages
system operation by controlling:
- air temperature at outlets;
- fan speed;
- air distribution;
- activation of the compressor (air refrigeration circuit);
- activation of air recirculation;
The control unit sets the above parameters
in order to adjust passenger compartment temperature to the required
level.The control unit supplies information on
interior and exterior temperature via special sensors.After processing the information, it adjusts
passenger compartment air intake speed by means of the fan motor
and air temperature by a mixer actuator. It also controls interior air
recirculation via a specific actuator.When required, the ECU automatically activates
the cooling circuit and dehumidifies the air by operating the air
conditioner compressor (see E6021 COMPRESSOR ACTIVATION).In addition to the climate control commands
described above, the climate control system also comprises the solar
radiation sensor located in the middle at the base of the windscreen;
This sensor prevents temperating rises in the passenger compartment
due to solar radiation. As a result of this, special measures are
adopted to improve climatic comfort in the car.For further details, see DESCRIPTION AND
OPERATION 5040.The control unit supply lines are protected
by a fuse in the junction unit.The fan supply line is protected by a special
maxifuse.The system will only operate when the ignition
is turned ON.