14
ELECTRONICS OPERATION ALGORITHM
The fan has a built-in speed controller, and a switch on the board to select a control method - by a built-in or an external
controller.
Mode 1: SW
switch in
IN
position. The control signal is set by the R1 potentiometer.
Rotations are controlled from minimum (extreme left position) to maximum (extreme right position).
When rotating clockwise, the rotations increase.
Mode 2: SW
switch in
EXT
position. The control signal is set by the external control device.
The motor is controlled by sending of an external control signal from 0 to 10 V to the
X2
terminal block.
The
TT Silent-M XXX EC U (n)
fan is equipped with an electronic module
TSC
(speed controller with an electronic thermostat)
for automatic motor speed control (air flow) depending on the air temperature.
The terminal compartment incorporates 2 control knobs:
motor speed preset button
electric thermostat control knob
The LED indicator is placed at the front panel of the fan to show the thermostat operating status.
To set the thermostat threshold, rotate the thermostat control knob clockwise to increase or counter-clockwise to decrease the
temperature set point accordingly.
To set the fan speed (air flow), rotate the speed control knob in the same way.
The
TT Silent-M XXX EC P
fan is equipped with a speed controller that enables switching the fan on/off and smooth speed (air
flow) regulation from minimum to maximum value.
