Helios KWL-BEC Notice D'utilisation page 55

Operating instructions
Comfort controller KWL-BEC
Switching steps
The switching step indicates the threshold in ppm, which was set as the limit value for
the change of CO
Steps of 50ppm can be set between 50-400 ppm.
If the set value is fallen below or exceeded by the value defined in the switching step,
the next operating stage of the ventilation unit will be activated.
(Factory setting: 100 ppm)
VOC set value
Configuration of the VOC sensor. The configuration applies to all connected sensors.
VOC control
"Off"
"Stepped"
"Continuous" VOC control active with continuous control logic
Depending on the VOC level, the fans are continuously regulated (fan stages 0-1-2-3-
4) between voltage stage 0 and voltage stage 4. The percentage control is displayed on
the web server page or on the comfort controller KWL-BEC.
(Factory setting: Continuous).
Set value
Lower limit value of VOC control.
The larger the difference between the actual value and the set value, the higher the fan
control. Set over a setting range of 300 ppm to 2000 ppm, the step size is 50 ppm
(Factory setting: 1000 ppm).
Switching step
The switching step is only relevant for the control mode "Stepped".
The switching step indicates the threshold in ppm, which was set as the limit value for
the change of VOC content in the room air.
Steps of 50ppm can be set between 50-400 ppm.
If the set value is fallen below or exceeded by the value defined in the switching step,
the next operating stage of the ventilation unit will be activated.
(Factory setting: 100 ppm).
Filter change
The filter change display shows the time of the next filter change. Depending on the
out- side air pollution levels, a filter change may also be required before the set time.
Change interval
The change interval can be changed from 2 up to 12 months in steps of 1 month.
(Factory setting: Fixed value 6 months)
Remaining period
The remaining period until the filter change is displayed in days.
content in the room air.
2
VOC control deactivated
VOC control active with stepped control logic
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