15
20147064
GB
Installation
5.8
Combustion head adjustment
To adjust, proceed as follows:
loosen the screw A)(Fig. 11), move the elbow B) so that the
rear plate of the coupling (C) coincides with the set point;
tighten the screw A).
Example:
The burner is installed in a 40 kW boiler.
Considering efficiency of 90% the burner must supply around 44
kW.
The diagram (Fig. 12) shows that for this output the adjustment
must be made on notch 3.
The diagram is to be used only for initial settings. To ensure good
air pressure switch operation it may be necessary to reduce this
combustion head opening (notch toward pos. 0).
C
A
B
S7015
Fig. 11
Fig. 12
kcal/h
kW
D5137
Notch No.
70
50
40
30
20
10
60
40,000
50,000
30,000
20,000
10,000
60,000
0
2
1
3
4
5
44