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Startup
Airflow control
The combustion air is regulated at two
points:
· On the pressure side by means of the
opening gap between the turbulator
and burner tube.
· On the suction side by means of the
air flap actuated by servomotor Y10.
Airflow control in the burner head
has an effect on the air quantity, as well
as on the mixing zone and the air
pressure in the burner tube. Turn
adjustment screw A
clockwise = increased airflow
–
anticlockwise = reduced airflow
–
· Adjust dimension Y corresponding to
table of settings.
Airflow regulation using an air flap.
This is actuated by the servomotor Y10.
The position of the air flap is
determined by adjusting cams I - IV.
Cam function
Cam
Function
I
Full-load
II
Air shut-off
III
Firing load
IV
Low-load (two interconnected
cams)
Cam IV can be set at a value above or
below cam III.
06/2005 - Art. Nr. 13 018 084A
Servomotor Y10
1
Four adjustable red cams
2
Marking to indicate cam setting
relative to scale no. 4
S
Adjust screws for cams
4
Three scales divided between 0
and 160°
5
Air-flap setting indicator
6
Removable plug-and-socket
connection
Adjustment
· Remove hood.
· Temporarily set the cams according
to the boiler output capacity and the
table values using S screws.
The angle should be read based on the
scale and the marking 2 on each cam.
EN
35
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