20154249
20
Installation
5.13 Gas supply
5.13.1 Gas feeding line
Key (Fig. 20 - Fig. 21 - Fig. 22 - Fig. 23)
1 Gas input pipe
2 Manual valve
3 Vibration damping joint
4 Pressure gauge with button cock
5Filter
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, supplied as an accessory or built-in,
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 1200
kW.
9 Gasket, for “flanged” versions only
10 Pressure adjuster
11 Train-burner adaptor, supplied separately
P2 Pressure upstream of valves/adjuster
P3 Pressure upstream of the filter
L Gas train, supplied separately
L1 Responsibility of the installer
Explosion danger due to fuel leaks in the
presence of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat.
Make sure the fuel shut-off valve is closed before
performing any operation on the burner.
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.