Automatic Control Mode
The Automatic Control Mode provides a full automatic control inside the bus. You just need to press the
Automatic Control Key and set the desired temperature. The system is designed to work by itself in order
to select the best operation mode to reach the set point. You can also use the Automatic Control Mode
with your desired blower speed.
After pressing the Automatic Control Key, the Numeric Display will show the Set-point and the system will
start the appropriate function – cooling or heating, according to the internal temperature, external
temperature, Set-point and parameters. The Automatic Control Mode is turned off by pressing the
Automatic Control Key again.
The system will automatic keep the temperature nearby the Set-point by alternately switching between
heating mode and cooling mode . The system also controls the evaporator with three different
blower speeds. They always start at a low speed and, if necessary, the speed is increased up to the
desired one to keep the temperature at the Set-point. Blower speed will be decreased when the
temperature gets near the Set-point.
Manual control of blower speed:
In Automatic Control Mode, the blower speed usually is set automatic, but it is also possible to control the
blower speed manual by starting the Automatic Control Mode. then press the Ventilation Control Key. The
blower speed will be shown for a few seconds on the Numeric Display. The Operator has then to press
the Temperature Increase Key or the Temperature Decrease Key to increase/decrease the blower speed.
After this, the blower speed is set to manual control and the ventilation speed indicators low, middle or
high will turn on. To turn back to the Automatic Control Mode, just press the Automatic Control Key.
5.6. Automatic Control Mode
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