Operation
Operating Instructions 2CKA001473B8822
│27
8.3.4
Menu "Threshold values / switch-off delay" for the ventilation control
Fig. 29:
Entering threshold values / switch-off delay
The ventilation is controlled via threshold values. An action is triggered when one of these
threshold values is exceeded or drops below the set value. E.g. a window is opened when the
entered CO
2
threshold value is exceeded.
Threshold values /
switch-off delay
Information
CO
2
CO
2
(carbon dioxide) is naturally present in the air. Conclusions can be drawn
about the quality of the air on the basis of its concentration within closed rooms.
■
The CO
2
threshold value can be set on the device between 800 ppm and
1500 ppm in steps of 10 ppm.
■
The display is illuminated in red as long as the CO
2
threshold value is
exceeded.
■
After initial commissioning it can a certain amount of time until the CO
2
value
is measured with its final accuracy.
Relative humidity
The relative humidity describes the amount of moisture in the air in dependence
of the air temperature.
■
The optimum value of the relative humidity depends on the local conditions.
■
The RH threshold value can be set on the device between 40% and 80% in
steps of 1%.
■
The display is illuminated in red as long as the RH threshold value is
exceeded.
OK
OK
OK
OK
1/2
1/3
800 ppm
CO
2
2/3
60 %
3/3
03:00
Off delay time
Minutes
Main menu
threshold values
threshold value
threshold value
relative humidity
