2.7
Skeleton
2
1
1
Ball valve
2
Filter
3
Governor
4
Pressure gauge with shut-off cock
5a
Gas pressure switch, mini
5b
Gas pressure switch, maxi
6a
Main valve
6b
Safety valve
7
Valve proving system
1)
9
Air pressure switch
10
Gas burner control
Pos. 5b, 7: Components not required according to EN 676.
Required over 1200 kW according to EN 676.
1)
10
Bentone
diagrams,
1-stage burner
5a
5b
3
10
4
6b
6a
7
9
172 515 04 2018-01-02