17
Bentone
165 105 05
4.8 Air adjustment with damper motor
4.8.1 Air setting
The damper motor turns the damper between 3 preset positions: fully
closed, low capacity and high capa-city. These positions are controlled in
the motor by cams which are set by means of the coloured disks. In addition
there is a black disk controlling the connection of solenoid valve 2.
If the air volume needs changing: Remove the cover from the damper motor
and change the position of the cams by turning them by hand. See fig
Low capacity:
Adjust the operating switch to high capacity (II).
-
Reduce the air volume:
Turn orange cam towards 0°.
-
Increase the air volume:
Turn orange cam towards 90°.
Adjust the operating switch back to low capacity and check.
Full capacity:
Adjust the operating switch to low capacity (I).
-
Reduce the air volume:
Turn red cam towards 0°.
-
Increase the air volume:
Turn red cam towards 90°
If the red cam is moved, the black one must also be moved.
Reset the control switch to High Load and make sure the correct air quantity
is reached.
Releasing button:
By pressing the button and
snapping it down, the motor will be
released and the damper can easily
be turned. This function facilitates an
exchange of damper motor.
!
The blue cam is
the limit position for
fully closed damper
and it is normally
not necessary to
change it
Releasing button
N.B.
The upper position is the
standard position
Solenoid valve High capacity (black)
High capacity (red)
Low capacity (orange)
Closed damper (blue)
