Blower control with +/- push buttons
The heating/air conditioning system is placed into operation by pressing the blower rocker switch (prerequisite: Terminal 15 ON).
Automatic blower control AUTO
The heating/air conditioning system assumes automatic mode by pressing the air distribution button AUTO . Based on the input variables and specified setpoints , the automatic control operates air distribution and blower outlet automatically. The greater the difference between the setpoint (temperature set at operating unit) and the actual interior temperature , the blower output is increased in the cold or warm range in order to counteract the temperature difference with a large volume of air . The blower output is reduced in steps as it approaches the setpoint .
Note:Automatic blower controlis deactivated by pressing the blower rocker switch in automatic mode .
Backpressure compensation
An increase in the set air flow volume due to the wind from driving is essentially compensated for by closing the fresh air flapsdependent from the driving speed (backpressure compensation ).