Riello DB4SMC01 AO FS1 T150 Installation, Use And Maintenance Instructions page 27

2
CHAPTER
2.3 Burner components
Key
1 Air box
2 Cover
3 Servomotor
4 Control box base for electrical connections
5 Boiler attachment flange
6 Combustion head
7 Gas pressure test point on combustion head
8 Ignition electrode
9 Air pipe attachment flange
10 Flame inspection window
11 UV cell
12 Air pressure switch
13 Maximum gas pressure switch with pressure test point
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Burner description
14 Gas connection flange
15 Shutter
16 Lever for moving combustion head
17 Air damper command lever
18 Gas butterfly valve command lever
19 Variable profile cam
20 Pressure test point on combustion head
21 Locking screws of the shutter during the transport (re-
place them with the screws M12x16 supplied with the
burner).
20076243
Fig. 2
5