Bentone B40 MF - Air Setting B45-2 MF Damper Motor

28
Bentone B40 MF/B45-2 MF
For installers
4.9 Air setting B45-2 MF Damper
motor
The damper motor turns the damper between three pre-set positions. These
positions are controlled in the motor by a microswitch, whose switching
modes is set using the colour-coded cams. There is also a black cam that
controls the engagement of solenoid valve 2 second stage oil.
When the amount of air needs to be changed:
Remove the hood from the damper motor and change the position of the
cams by turning them using the included tool. In order for the cam to be
inoperative while being turned, we recommend that you switch to a different
stage than the one that is to be adjusted and, after making the change,
returning to pre-check of the outcome.
Adjustment Stage 1
Set the operations switch to Stage 2 (II).
* Reduce the air volume:
Turn the orange cam towards 0°.
* Increase the air volume:
Turn the orange cam towards 90°.
Once the red or orange cam has been moved, check whether the black
cam must be changed. The black cam must be between the orange and red
cam.
Return the operations switch to Stage 1 and check combustion.