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0006081041_200708
Legend
1) Manual shut off valve
2) Anti-vibration joint
3) Gas filter
4) Minimum gas pressure switch
5) Safety valve
Gas train
supplied by the manufacturer
The job of the installer
POWER SUPPLY LINE
The gas supply scheme is shown in
the diagram below. The gas train is
certified in accordance with regula
-
tions EN 676 and is supplied sepa-
rately from the burner.
A manual shut off valve and anti-vi-
bration joint must be installed up-
stream of the gas valve, as shown
in the diagram.
In the case of a gas train with a
pressure regulator that is not incor-
porated in a monoblock valve,
we consider it useful to give the fol
-
lowing practical advice regarding
the installation of accessory com
-
ponents to the gas piping close to
the burner:
1) To prevent severe drops in pres-
sure on ignition it is advisble to
have a length of piping of 1.5 to
2 metres between the point of
application of the stabiliser or
pressure reducer and the bur-
ner. This pipe must have a dia-
meter equal to or greater than
the connector to the burner.
2) For the better working of the
pressure regulator it is advisa-
ble to apply it to the horizontal
piping, after the filter. The gas
pressure regulator must be
adjusted when working at maxi
-
mum capacity and actually used
by the burner. The delivery pres
-
sure must be adjusted to a le-
vel slightly below the maximum
obtainable. (that which is obtai
-
ned when the regulation screw
is turned almost to the end); in
the specific case, when the re
-
gulation screw is tightened, the
output pressure from the regu-
lator increases and when it is
loosened it decreases.
GENERAL GAS BURNER SYSTEM
N° 0002910950n1
REV.: 10/05/06
6) Pressure regulator
7) Valves seal control device
(obligatory for burner with
mximum nominal thermal out-
put over 1200 kW)
8) Two-stage working valve
9) Control servomotor
10) Air adjustment gate
11) Air pressure switch
12) Combustion head