Lunos Silvento EC, Руководство по установке, Страница: 27 / 28

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Humidity Control EN
Fans equipped with the comfort board/EC-FK have an independent humidity control system with a standard control
range between 50 - 70% rh; the control is performed between the selected basic ventilation stage (DIP switches 1, 2)
and the regulated ventilation stage (DIP switches 6, 7). This ensures a constant adaptation of the exhaust airflow vol-
ume to room air humidity and room temperature so that an optimum of comfort is achieved. Ventilation is carried out
only as much as necessary, but only as little as possible, which saves energy and prevents excessive humidification
of the apartment as well as building damage and mould.
The control takes place in a quasi-stageless and "intelligent" way, in which a distinction is made between permanent-
ly high relative humidity or a rapid rise (e.g. by taking showers).
If the relative humidity cannot be significantly reduced within a period of two hours (e.g. in summer), the fan will be
switched to the basic ventilation stage.
If the relative humidity increases during the decrease mode by more than 5% within one hour, the decrease mode will
be terminated. If the lower switching threshold is undercut and OFF is set as the basic ventilation stage, the fan will
be switched off.
If the fan is in the basic ventilation stage OFF, it will run at the stage 15 m³/h (sniff mode) once per hour for 3
minutes. If a relative humidity above the set switching threshold is measured during this time, e.g. 50% rh, the humid-
ity control will be activated. If the measured relative humidity is lower than the switching threshold, the fan will be
switched off again after these three minutes.
Note :

If voltage is applied to L2, all special functions, switch-on delay, run-on time, interval mode as well as humidity
control (only 5/EC-FK) will be deactivated.

Normally, a smaller airflow volume should be set for the basic ventilation stage than for the regulated ventila-
tion stage. If the airflow volume of the basic ventilation stage is higher than the airflow volume of the regulated
ventilation stage, the control will operate in the opposite direction, which means that less ventilation is carried
out in case of increasing relative humidity.

Within the first two hours after mains connection, the fan will run at the stage corresponding to the currently
measured value of relative humidity.