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20040559
18
GB
Installation
5.9.2
Gas feeding line
Key (Fig. 17)
1
Gas input pipe
2
Manual valve
3
Vibration damping joint
4
Pressure gauge with pushbutton cock
5
Multibloc, including:
-
filter (replaceable)
-
working valve
-
pressure adjuster
6
Minimum gas pressure switch
7
Valve leak detection control device. In compliance with the
EN 676 standard, leak detection control devices are com-
pulsory for burners with maximum outputs over 1200 kW.
8
Gasket
9
Gas adjustment butterfly valve
10 Maximum gas pressure switch (accessory)
11 Gas train/burner adaptor
P1 Pressure at combustion head
P2 Upstream pressure of valves/adjuster
P3 Upstream pressure of the filter
L
Gas train supplied separately with the code indicated in Tab. G
L1 Installer's responsibility
D3791
L1
L
P2
P1
1
2
3
4
5
6
7
8
9
10
11
Fig. 17
WARNING
Make sure that the gas train is properly installed
by checking for any fuel leaks along the fuel sup-
ply line.