5144
9
ADJUSTMENT OF THE AIR DAMPER MOTOR
STOP - Blue lever
This lever leaves the factory vertically positioned and
corresponds to the complete closing of the air damper.
A partial opening of the air damper might be obtained by
moving leftwards this lever (+ on the label).
The new position the air damper is detectable when the
burner is off. Do not overcome the position of the orange
lever for the 1
st
stage.
1st STAGE - Orange lever
The orange lever controls the air damper position for the first
flame, it is adjustable both for opening and closing.
2nd STAGE - Red and black levers
The red lever controls the air damper position for the second flame, it is adjustable both for closing and
opening. The black lever controls the opening of the second oil valve and it must always - for a bit - the
red lever, but never the orange one.
Loosen the two screws (1), move the elbow (2) so that the rear part (3) coincides to the desired set-
point (4). Tighten the screws (1).
S7548
2
1
3
4
Kcal/h
kW
S7601
700
660
620
580
540
500
460
420
380
340
600.000
540.000
480.000
420.000
360.000
300.000
0
1
2
3
4
5
6
7
O - Closing
Black lever
Red lever
Orange lever
Blue lever
S7570
