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Warning
Before installation, check that there are the required gas supply conditions according to the type of gas chosen
(natural gas or LPG) and according to the country of installation.
• For European countries: identify the conditions to be used in Table I (natural gas) or Table II (LPG).
European
Country
• For non European countries: consult the national laws for gas heating systems to identify the permitted gas supply
pressure values. If these values are not stated, use the indications below only as a reference and check that they
correspond to those provided for by the national standards:
(Only for non-European countries
where the gas supply conditions are
Gas type
-
Gas code
-
Category
-
Supply
mbar
Pressure p
a
Burner
mbar
Pressure p
b
Gas
diffuser
-
ring (3)
Warning
It is the sole responsibility of the installer to verify and choose the correct gas supply category, and therefore
the gas supply pressure.
The gas supply pipe must be properly sized, conform to the installed thermal power, and guarantee the necessary
conditions for gas supply.
Warning
The gas supply pressure must be guaranteed during heater operation and not with the heater off.
The space heater is equipped with a gas valve that contains: a gas filter, a pressure regulator, a safety solenoid valve,
a working solenoid valve, a pressure stabilizer and pressure taps.
It is good practice for the installer to set up the supply line as follows:
L-L 304.00-BM
Gas
Gas
categories
code
NATURAL GAS
not indicated)
Metano +
Metano
Azoto
G20
G25
I
I
2H
2E
20
20
5,5
7,5
N. 16 x 2,6
N. 16 x 2,6
mm
mm
EN
Supply
Burner
Pressure
Pressure
p
p
a
b
[mbar]
[mbar]
(Only for non-European countries
where the gas supply conditions are
not indicated)
Gas type
-
Gas code
-
Category
-
Supply
mbar
Pressure p
a
Burner
mbar
Pressure p
b
Gas
diffuser
-
ring (3)
Gas
Diffuser
Ring (3)
L.P.G.
Propano
G31
I
3P
37
10,0
N. 12 x 1,9
N. 12 x 1,9
mm
Butano
G30
I
3B/P
30
8,0
mm
62 / 116
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