SUPPLY LINE
The EN 676 approved gas train is sold separately from the burner.
To ensure optimal functioning of the pressure regulator, it should be
applied to the horizontal pipe after the filter.
The gas pressure regulator must be regulated when the burner is
working at the maximum flow.
DANGER / ATTENTION
Install a manual shut-off valve and a vibration-proof joint
upstream of the gas valve according to the layout shown in the
block diagram.
To avoid high pressure drops upon ignition, there should be a 1.5/2
m long pipe section between the pressure reducer or stabiliser instal
-
lation point and the burner.The tube diameter should be equal to or
greater than the burner attachment union.
To ensure optimal functioning of the pressure regulator, it should be
applied to the horizontal pipe after the filter.
The gas pressure regulator must be regulated when the burner is
working at the maximum flow.
The delivery pressure must be adjusted to a level slightly below the
maximum attainable (i.e. that obtained when the regulation screw is
screwed in almost fully).
GAS TRAIN BLOCK DIAGRAM
GAS TRAIN SUPPLIED BY THE MANUFACTURER
TO BE CARRIED OUT BY THE
INSTALLER
1
Manual shut-off valve
2
Vibration-proof joint
3
Gas filter
4
Minimum gas pressure switch
5
Safety valve
6
Pressure regulator
7
Valve seal control device (mandatory for burners with maximum rated
heating capacity higher than 1200kW)
8
Slow opening working valve
9
Air/gas regulation servomotor
10
Air regulation damper
11
Air pressure switch
12
Combustion head
13
Gas regulation throttle valve
ENGLISH
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