9
GAS PIPING
• The main gas train must be connected to the gas
attachment 1)(A), using flange 2), gasket 3) and
screws 4) supplied with the burner.
• The gas train can enter the burner from the right or left
side, depending on which is the most convenient, see
fig. (A).
• The gas safety shut-off valves 5)-6)(A) must be as
close as possible 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)(A).
GAS TRAIN (B)
It must be type-approved according to required stand-
ards and is supplied separately from the burner.
Note
See the accompanying instructions for the adjustment of
the gas train.
KEY (A)
1 - Gas input pipe
2 - Manual valve
3 - Pressure regulator
4 - Low 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 - High gas pressure switch *
* On the burner
ELECTRICAL WIRING
Notes on safety for the electrical wiring
-
The electrical wiring must be carried out with the
electrical supply disconnected.
-
Electrical wiring must be carried out by qualified
personnel and in compliance with the regulations
currently in force in the country of destination.
Refer to the electrical layouts.
-
The manufacturer declines all responsibility for
modifications or connections different from those
shown in the electrical layouts.
-
Check that the electrical supply of the burner corre-
sponds to that shown on the identification label and
in this manual.
-
Do not invert the neutral with the phase in the elec-
trical supply line.
Any inversion would cause a lockout due to firing
failure.
-
The electrical safety of the device is obtained only
when it is correctly connected to an efficient earth-
ing system, made according to current standards.
It is necessary to check this fundamental safety
requirement. In the event of doubt, have the electri-
cal system checked by qualified personnel.
Do not use the gas tubes as an earthing system for
electrical devices.
-
The electrical system must be suitable for the max-
imum input power of the device,as indicated on the
label and in the manual, checking in particular that
the section of the cables is suitable for the input
power of the device.
-
For the main power supply of the device from the
electricity mains:
-
- do not use adapters, multiple sockets or exten-
sions;
-
- use an omnipolar switch with an opening of at
least
1
/
8
” (overvoltage category) between the con-
tacts, as indicated by the current safety standards.
-
Do not touch the device with wet or damp body
parts and/or in bare feet.
-
Do not pull the electric cables.
(B)
(A)
D2846
D2438
TYPICAL UL SCHEMATIC GAS PIPING
GAS PILOT LINE
MAIN GAS LINE
Содержание 20011691
Страница 2: ......
