Riello DB9 LSE C13 TC FS1 A0 Installation, Use And Maintenance Instructions page 27

2.3 Burner components
1 Electrical control box base for electrical connections
2 Air box
3 Cover
4 Maximum gas pressure switch
5 Oil pressure regulator
6 Gas train attachment flange
7 Photocell
8 Pilot burner
9 Tie-rod for combustion head modulation
10 Air servomotor
11 Air pipe attachment flange
12 Gas delivery regulator pilot burner
13 Air pressure switch
14 Gas train pilot (burner)
15 Flame inspection window
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16 Combustion head
17 Boiler attachment flange
18 Fuel servomotor
19 Burner lance
20 Lance pneumatic activation valve (5 bars min.)
21 Safety oil valve
22 Pressure gauge return
23 Minumum oil pressure switch on return
24 Pressure gauge delivery
25 Max oil pressure switch delivery
26 Proximity sensor of lance
2
Burner description
Fig. 2
5