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POWER SUPPLY LINE
The gas supply scheme is shown in the diagram be-
low. The gas train is certified in accordance with re-
gulations EN 676 and is supplied separately from the
burner.
A manual shut off valve and anti-vibration joint must
be installed upstream of the gas valve, as shown in
the diagram.
In the case of a gas train with a pressure regulator that
is not incorporated in a monoblock valve,
we consider it useful to give the following practical
advice regarding the installation of accessory compo-
nents 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 me-
GENERAL GAS BURNER SYSTEM
Legend
1) Manual shut off valve
2) Anti-vibration joint
3) Gas filter
4) Minimum gas pressure switch
5) Safety valve
6) Pressure regulator
tres between the point of application of the stabili-
ser or pressure reducer and the burner. This pipe
must have a diameter equal to or greater than the
connector to the burner.
2) For the better working of the pressure regulator it
is advisable to apply it to the horizontal piping, af-
ter the filter. The gas pressure regulator must be
adjusted when working at maximum capacity and
actually used by the burner. The delivery pressu-
re must be adjusted to a level slightly below the
maximum obtainable. (that which is obtained when
the regulation screw is turned almost to the end); in
the specific case, when the regulation screw is
tightened, the output pressure from the regulator
increases and when it is loosened it decreases.
Gas train
supplied by the manufacturer
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
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000608.1041_201102
The job of the installer
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