Ventis TT Silent-M 100, User Manual

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23
EN
ELECTRONICS OPERATION ALGORITHM
It is possible to control the fan rotation speed without options by voltage, as well as by thyristor controllers.
The speed controller is purchased separately.
Warning!
When adjusting the voltage, make sure there is no unusual noise or vibration at reduced motor speed.
The motor current may exceed the rated current during voltage regulation.
The fan is equipped with a thermal switch with no self-reset.
To reset the thermal relay:
• Switch off the power supply.
• Find and eliminate the cause of overheating.
• Make sure the motor has cooled down to operating temperature.
• Switch on the power supply.
The
TT Silent-M ... T
fan starts operation when the control voltage is applied to the LT input terminal by an external switch
(e.g. switching on the room light).
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.
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.
Warning!
The timer circuit is under mains voltage. Make adjustments only after disconnecting the fan from power mains.
The fan is supplied with a special plastic screwdriver for adjusting the fan settings. Use it if you want to change the fan turn-
off delay time or the humidity threshold. Using a metal screwdriver, knife, etc. for adjustment may damage the electronics
board.
The
TT Silent-M ... U/U1/U2(n)
fan is equipped with an electronic module
TSC
(speed controller with an electronic
thermostat) for automatic motor speed (air flow) control depending on the air temperature.