6
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Occasional control (faster increase in humidity)
With a rapid increase in humidity (caused possibly by showering, bathing) the fan
turns on as early as possible before reaching the set threshold, to effectively
eliminate excessive humidity and restore the comfort zone in the room.
When reaching the set point threshold, the fan shuts down according to the timer
setting. The switch-off threshold is fixed at 10% below the set point.
3. Runtime limit
In cases with lasting
moisture accumulation (when the relative humidity of the
inflowing air is already above the set point, or permanently damp laundry is in the
room, or poor air exchange due to a small-sized room or clogged air vent opening)
the fan will shut down automatically after 2 hours. During stop time any humidity
measurement will be ignored. The required ventilation continues to be activated
enabling ventilation on demand, until the stop time function is terminated.
There are two possible stopping times:
Short stopping time:
The humidity has dropped down after two hours under the adjusted switch on
threshold, but hasn’t yet reached switching off threshold. The fan switches off; it runs
a short stop time of one hour.
Background
:
There is a humidity decrease (reduction) during the fan operation. The
reduction however hasn’t been enough to fall below the turn off threshold. Short stop
time activated since it can be assumed that after a short break the humidity can still
be effectively reduced.
Long stopping time:
The humidity hasn’t dropped down after two hours under the adjusted switch on
threshold. The fan is switches off; it runs a long stop time of six hours.
Background
:
Since the humidity value hasn’t fallen below the set point value, it can be
assumed that another venting makes no sense.
4. Hygrostat function
The control switches are as a “smart” hygrostat. The humidity operation is identical,
but without shutting down after the run on time limit, if the switch off threshold is not
exceeded.
5. Switch ON delay
The fan will turn on after the set delay start time (0, 45, 90, 120 sec.). The delay is
only performed at standstill of the fan. When switching between on-going stages
applicable, switch ON delay will be ignored. By simultaneous activation of both
stages, switch ON delay is also not taken into account.
6. Push-button operation
When no switch on delay is activated, switch inputs can be controlled by an impulse
button. To do so, on the relevant stage, the timer function has to be activated.
The button must be pressed for more than 0.5 sec. If a stage was activated by
button, the corresponding stage will switch off automatically at the end of the
stopping time.
