20062968
22
Installation
4.8
Fuel supply
4.9
Gas line
This has been type-approved together with the burner, in accor-
dance with regulation NFPA 54/ANSI Z223.1 National Fuel Gas
Code, NFPA 58 Liquefied Petroleum Gas Code, and International
Fuel Gas Code, and is supplied as standard (for Canadian require-
ments see CSA 3.4, Cl. 4.2.1.3)(Fig. 21).
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,
depending on which is the most convenient, see Fig. 19.
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 adjuster (colour
of the spring).
The main gas train must be connected to the gas attachment 1)
(Fig. 19), 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,
see (Fig. 19).
Gas safety shut-off valves 5)-6) (Fig. 20) 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. 20) and can enter the burner from the right or left side.
4.10
Gas feeding line
It must be type-approved according to required standards and is
supplied separately from the burner.
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 (*)
9
Burner
10
Maximum gas pressure switch (*)
(*) On the burner
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 inlet connection is closed
before performing any operation on the burner.
WARNING
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
Before carrying out maintenance, cleaning or
checking operations, identify and close the manual
shut-off valve on the gas supply drop-line to the bur-
ner.
WARNING
See the accompanying instructions for the
adjustment of the gas train.
D2310
Fig. 19
Fig. 20
D2438
GAS PILOT LINE
MAIN GAS LINE
Содержание RS 120/EV LN
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