FAN OPERATION LOGIC
Turn-on delay timer - in case of the switch closing or activation of the
humidity or motion sensor the timer countdown from 0 up to 2 minutes is
activated. Within this time the fan remains in the previous operation
mode. If the switch is not opened or the sensor keeps registering high
humidity or motion after the timer countdown, the fan switches to the first
or to the second speed depending on the selected operation mode.
Turn-off delay timer — in case of the switch opening, indoor humidity
drop below the set point or no motion registration the timer countdown
from 2 up to 30 minutes is activated. Within this time the fan remains in
the previous operation mode. After the timer countdown the fan switches
off or switches to the first speed, depending on selected operation mode.
Humidity sensor — if the indoor humidity rises above the set point from
60% up to 90%, the fan either turns on or switches to the second speed
depending on the set operation mode, with respect to the turn-on delay
timer setting. The fan keeps operating at this speed until the humidity
drops to the set point. After that the turn-off delay timer is activated.
Motion sensor — in case of motion detection the fan either turns on or
switches to the second speed, depending on the set operation mode,
with respect to the turn-on delay timer setting. The fan keeps operating
at this speed until the motion sensor keeps detecting movement.
After that the turn-off delay timer is activated.
Pull-cord switch or the external switch (models ST and SH) — in
case of the switch closing the fan either turns on or switches to the
second speed, depending on the set operation mode, with respect to the
turn-on delay timer setting. After the switch is opened the turn-off delay
timer is activated.
The recommended turn-on delay timer setting for the fan with an built-in
switch is 0 minutes (factory setting).
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