PART I: SPECIFICATIONS
6
Burner model identification
Burners are identified by burner type and model. Burner model identification is described as follows.
Fuel
The burner technical specifications, described in this manual, refer to natural gas (calorific net
value Hi = 9.45 kWh/Stm
3
, density
ρ
= 0.717 Kg/Stm
3
) and LPG (calorific net value Hi = 26.79
kWh/Stm
3
, density
ρ
= 2.151 Kg/Stm
3
). For different fuel such as town gas and biogas, multiply the
values of flow and pressure by th corrective factors shown in the table below.
For example, to obtain the flow and pressure values for the biogas:
Type
P71
Model
M-.
MD. S.
*.
A. 1.
80.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
1 BURNER TYPE
P61 - P65 - P71
2 FUEL
M - Natural gas
L - LPG
B - Biogas
C - Town gas
3 OPERATION (Available versions)
PR - Progressive
MD - Fully modulating
AB - Double stage
4 BLAST TUBE
S - Standard
L - Extended
5 DESTINATION COUNTRY
* - see data plate
6 BURNER VERSION
A - Standard
Y - SpecialeSpecial
7 EQUIPMENT
0 = 2 gas valves
1 = 2 gas gas proving system
7 = 2 gas maximum gas pressure switch
8 = 2 gas gas proving maximum gas pressure switch
8 GAS CONNECTION
32 = Rp1
1/4
40 = Rp1
1/2
50 = Rp2
65 = DN65 80 = DN80
WARNING! The burner must be used only with the fuel specified in the burner data
plate .
Fuel
Hi
(KWh/Stm
3
)
ρ
(kg/Stm
3
)
f
Q
f
p
Town gas
4,88
0,6023
1,936
3,3
Biogas
6,395
1,1472
1,478
3,5
ATTENTION! The combustion head type and the settings depend on the fuel. The burner must be used only for its
intended purpose specified in the burner data plate .
ATTENTION! The corrective factors in the above table depend on the gas composition, so on the calorifc value and
the density of the gas. The above value can be taken only as reference.
Type --
Model
--
Year --
S.Number --
Output --
Oil Flow
--
Fuel
--
Category --
Gas Pressure
--
Viscosity --
El.Supply --
El.Consump. --
Q
biogas
Q
naturalGas
1 478
=
p
biogas
p
naturalGas
3 5
=