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4.14 Gas train supplied
It must be type-approved according to required standards and is
supplied separately from the burner.
Explosion danger due to fuel leaks in the presence
of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat.
Make sure the fuel interception tap is closed before
performing any operation on the burner.
S9785
Key to lay-out (Fig. 27)
1
Gas input pipe for main burner
2
Manual valve
3
Low gas pressure switch
4
Safety shut-off valve
5
NO vent valve
6
Regulating shut off valve
7
Gas input pipe for pilot
8
Gas adjustment butterfly valve
9
Burner
10 High gas pressure switch
11 Manual valve (for seal control)
12 Pilot regulator
4.14.1 Gas train
It must be type-approved according to UL Standards and is sup-
plied separately from the burner.
See the accompanying instructions for the adjust-
ment of the gas train.
WARNING
10
8
9
VENT
6
5
4
3
11
Installation
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
WARNING
12
2
4
5
4
VENT
MAIN GAS
1
SUPPLY
2
Check that there are no gas leaks.
Pay attention when handling the train: danger of
crushing of limbs.
Make sure that the gas train is properly installed by
checking for any fuel leaks.
The operator must use the required equipment dur-
ing installation.
29
GB
PILOT
7
GAS SUPPLY
Fig. 27
20146383
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