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4.9
Gas supply
4.9.1
Gas train
The gas train is type-approved according to standard UL 795 and
is supplied separately from the burner.
The gas train can enter the burner from the right or left side, de-
pending on which is the most convenient.
The gas train must be connected to the gas attachment 1)
(Fig. 19) with the flange 2), the gasket 3) and the screws 4)
supplied with the burner.
The gas solenoids must be as close as possible to the burner,
to ensure that the gas reaches the combustion head within the
safety time of 3s.
Ensure that the maximum pressure necessary for the burner is
included in the calibration field of the pressure regulator
(colour of the spring).
See the accompanying instructions for the adju-
stment of the gas train.
WARNING
4.9.2
Gas feeding line
It must be type-approved according to required standards and is
supplied separately from the burner.
Key (Fig. 20)
1
Gas input pipe
2
Manual valve
3
Pressure regulator
4
Minimum gas pressure switch
5
1st safety shut off valve
6
2nd safety shut off valve
7
Standard issue burner with flange gasket
8
Gas adjustment butterfly valve (on the burner)
9
Burner
10 Maximum gas pressure switch (on the burner)
20069791
Installation
D2438
22
GB
D722
Fig. 19
GAS PILOT LINE
MAIN GAS LINE
Fig. 20
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