14
EN
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.
After the control voltage is off, the fan continues to operate within the time set by the timer ranging from 2 to 30 minutes.
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 TH
– 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, set the potentiometer to
H
max
position (90 %).
To adjust the fan timer, turn the control knob
T
clockwise to increase and counter-clockwise to decrease the turn-on 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.
WARNING! 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.
Do not use a metal screwdriver, knife, etc. for adjustment operations not to damage the circuit board.
DO NOT USE A METAL SCREWDRIVER, KNIFE, ETC. FOR ADJUSTMENT
OPERATIONS NOT TO DAMAGE THE CIRCUIT BOARD.
