Preparation For Start Up; Combustion Head Adjustment; Ignition Pilot - Riello DB 6 LM C10 TC FS1 A0 T150 Installation, Use And Maintenance Instruction

5

Preparation for start up

5.1

Combustion head adjustment

In addition to varying air flow depending on the output requested, the air gate valve servomotor 7)(Fig. 2) by means of a lifting
assembly, varies 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 opening can be varied by moving the tie rod onto holes 1-2-3 (Fig. 13).
The choice of the hole (1-2-3) to be used is decided on the basis of diagram in Fig. 14 against the required maximum output.
Setting is pre-arranged in the plant for the maximum run (hole 3).
When dealing with boilers featuring a strong back pressure, if air delivery is insufficient even with the damper fully open, you can
use a different setting to that illustrated in diagram in Fig. 14, do this by moving the tie rod onto the next highest hole numerically
speaking, thus increasing the combustion head's opening and hence air delivery)
N° Hole
3
2
1
0
4000
5.2

Ignition pilot

Make sure that the electrodes are positioned as shown in Fig. 15.
4400 5000 5400 5800
4÷ 4,5mm
D8321
20082173
Fig. 13
6200 6600 7000 7400
Maximum burner output
47
D8417
kW
7800 8200 kW
Fig. 14
Fig. 15
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