Nu-Way MOL 1650-3R B70 2-3, Installation & Maintenance Manual

AIR ADJUSTMENT
The damper motor turns the damper between 3 preset positions: 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 and a
green disc controlling the connection of solenoid valve 3.

If the air volume needs changing: Remove the cover from the damper motor and change the position of the cams by turning
them with the tools accompanying the burner.

Stage 1:
Adjust the operating switch to stage 2
(II).
* Reduce the air volume:

Turn blue cam towards 0°.

* Increase the air volume:

Turn blue cam towards 90°.

Adjust the operating switch back to
stage 1 and check.

Stage 2:
Adjust the operating switch to stage 1
(I).
* Reduce the air volume:

Turn orange cam towards 0°.

* Increase the air volume:

Turn orange cam towards 90°.

Adjust the operating switch back to
stage 2 and ensure that the correct air
volume has been obtained.

Stage 3:
Adjust the operating switch to stage 2
(II).
* Reduce the air volume:

Turn red cam towards 0°.

* Increase the air volume:

Turn red cam towards 90°.

Adjust the operating switch to stage 3
(III) and ensure that the correct air volume
has been obtained.

NOTE
On adjustment of stage 2 and stage 3
the black cam (Mv2) must be within the
settings of the blue and orange cams
and the green cam (Mv3) within the
settings of the orange and the red cams.

Solenoid valve  stage 3 (green)

Solenoid valve  stage 2 (black)

Stage 3 (red)

Stage 2 (orange)

Stage 1(blue)

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