Electronics Operation Algorithm - Vents 100 Base-I User Manual

ELECTRONICS OPERATION ALGORITHM

The fan with the timer T is started after actuation of the external switch, e.g. the light switch. The control voltage is supplied
to the input terminal LT (ST). After the control voltage is off, the fan continues to operate within the set time period adjustable
from 2 to 30 minutes by the timer.
The V and VT models are turned on and off by an integrated pull-cord switch.
The fan with the timer and the humidity sensor H — the fan starts after the control voltage is supplied to the input
terminal S or if indoor humidity level H exceeds the set point adjustable from ~60 % to ~90 %. After the control voltage is off
or the humidity level has decreased, the fan will keep running within the time set by the timer ranging from 2 to 30 minutes.
To set the maximum humidity setpoint 90 % set the potentiometer to H
position.
max
To adjust the fan turn-on delay time, turn the control knob T clockwise to increase and counter-clockwise to decrease the
turn-on delay time respectively. To adjust the fan timer time, turn the control knob T clockwise to increase and counter-
clockwise to decrease the delay time respectively.
To adjust the humidity set point turn the control knob H clockwise to increase and counter-clockwise to decrease the
humidity sensor set point..
CAUTION! The timer circuit is live! Disconnect the fan from power mains prior to any adjustment operations. The
fan delivery set includes a specially designed plastic screwdriver for fan settings adjustments (only for models
equipped with a timer). Use it to change the turn-on and turn-off delay time and the humidity set point.
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