Riello DB3 SM C01 TC FS1 A0 T250, Installation, Use And Maintenance Instructions, Page: 35 / 64

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5
Preparation for start up
5.1 Combustion head setting
The servomotor 3) Fig. 2 varies the air flow depending on
the output requested and manually also the setting of the
combustion head.
This system allows an optimal setting even at a minimum
firing rate.
For the same servomotor rotation, combustion head open-
ing can be varied by moving the lever onto holes 1-2-3-4-
5-6, Fig. 14, after loosening the screw 1).
The choice of the hole (1-2-3-4-5-6) to be used is decided
on the basis of diagram (Fig. 15) against the required max-
imum output.
Setting is pre-arranged in the plant for the minimum posi-
tion (hole 0).
5.2 Electrodes positioning
Make sure that the electrodes are positioned as shown in Fig. 16.
1
2
20084518
Fig. 14
Fig. 15
6
5
4
3
2
1
0
1000
0
1
2
3
4
5
6
1500 2000 2500 3000 3500 4000 4500 5000 kW
7
D12014
Fig. 16
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