BIEMMEDUE GA/N 115C Manuel D'instructions page 63

5.3. CONNECTION TO FUEL SUPPLY
Warning
The heater MUST be installed, set up, and used in compliance with all applicable regulations.
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
Pressure p
mbar
b
First stage ( )
Burner
Pressure p
b
mbar
Second stage
( )
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.
L-L 337.00-BM
Gas Gas
categories code
NATURAL GAS
not indicated)
Metano +
Metano
Azoto
G20 G25
I I
2H 2E
20 20
4,7 5,8
6,2 7,7
N. 16 x 3,5 N. 16 x 3,5
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
Pressure p
mbar
b
First stage ( )
Burner
Pressure p
b
mbar
Second stage
( )
Gas diffuser
-
ring (3)
Gas
Diffuser
Ring (3)
L.P.G.
Propano
G31
I
3P
37
7,2
10,5
N. 12 x 2,5 N. 12 x 2,5
mm
Butano
G30
I
3B/P
30
6,0
8,5
mm
63 / 116