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4.8
Gas supply
Explosion danger due to fuel leaks in the presence
of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat.
Make sure that the fuel interception tap 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.
WARNING
4.8.1
Gas piping
The main gas train must be connected to the gas attachment
1)(Fig. 17), using flange 2), gasket 3) and screws 4) supplied with
the burner.
The main gas train can enter the burner from the right or left side,
depending on which is the most convenient.
Gas safety shut-off valves 5)-6)(Fig. 18) must be as close as pos-
sible to the burner to ensure gas reaches the combustion head
within the safety time range.
The pilot gas train must be connected to the gas attachment
5)(Fig. 17) and can enter the burner from the right or left side.
4.8.2
Gas feeding line
It must be type-approved according to UL Standards and is sup-
plied separately from the burner.
See the accompanying instructions for the ad-
justment of the gas train.
WARNING
Key (Fig. 18)
1
Gas input pipe
2
Manual valve
3
Pressure regulator
4
Low gas pressure switch
st
5
1
safety shut off valve
nd
6
2
safety shut off valve
7
Standard issue burner gasket with flange
8
Gas adjustment butterfly valve
9
Burner
Installation
D2294
4.8.3
Gas train
It must be type-approved according to UL Standards and is sup-
plied separately from the burner.
Disconnect the electrical power using the main sys-
tem switch.
DANGER
Check that there are no gas leaks.
Beware of train movements: danger of crushing of
limbs.
19
GB
D2293
Fig. 17
GAS PILOT LINE
MAIN GAS LINE
Fig. 18
20026767
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