Riello DB 9 SE C03 FGR FS1 FB A0 Installation, Use And Maintenance Instructions page 26

2
CHAPTER Burner description
2.4 Overall dimensions
1 8 8 0
9 1 0
6 6 9
4 8 1 4 2 9
4 8 4
2 0 0
8 4 3
20109971
Fig. 3
FLANGE DIMENSIONS
Air duct connection Fixing to the boiler Gas supply
4 7 0
4 3 0
4 0 0
1 1
420 DB 9
1 6 0
1 8 0 1 8 0
Fig. 6
2 2 0 2 2 0
470 DB 12
DN 80
D3973
D3974
D3972
Fig. 4 Fig. 5 Fig. 6
6