Combustion Head Adjustment - Riello 40 FS5 Installation, Use And Maintenance Instructions

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).
Installation
C
A
B
kcal/h kW
60,000
70
60
50,000
50
40,000
44
40
30,000
30
20,000
20
10,000
10
0
15
GB
1 2 3
Notch No.
S7015
Fig. 11
D5137
4 5
Fig. 12
20147064