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5.14
Gas feeding
Explosion danger due to fuel leaks in the pres-
ence of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat.
Make sure the fuel interception tap is closed be-
fore performing any operation on the burner.
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
WARNING
WARNING
5.14.1 Gas feeding line
Key (Fig. 32 - Fig. 33 - Fig. 34 - Fig. 35)
1
Gas input pipe
2
Manual valve
3
Vibration damping joint
4
Pressure gauge with push-button cock
5
Filter
6A Includes:
– filter
– safety valve
– pressure adjuster
– working valve
6C Includes:
– safety valve
– working valve
6D Includes:
– safety valve
– working valve
7
Minimum gas pressure switch
8
Leak detection control, provided as an accessory or integrat-
ed, based on the gas train code. In compliance with the EN
676 standard, gas valve leak detection control devices are
compulsory for burners with maximum outputs over 1,200
kW.
9
Gasket, for "flanged" versions only
10 Pressure adjuster
11 Train-Burner adaptor, supplied separately
P2 Upstream pressure of valves/adjuster
P3 Upstream pressure of the filter
L
Gas train, supplied separately
L1 The responsibility of the installer
Installation
MB
20057264
MBC - VGD
20062223
DMV
20062227
CB
20062228
29
GB
Fig. 32
Fig. 33
Fig. 34
Fig. 35
20121288
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