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2.3
Technical specifications
Description
Fuel
Gas supply pressure (nominal)
Boiler class
Type of boiler
Max. heat input at furnace
Rated useful heat output
Useful efficiency at Pn
Useful efficiency at 30% Pn
Min. combustion efficiency
Constant pressure drop
Losses from stack with burner on
Flue gas temperature (ΔT) (at Pn)
Maximum flue gas flow rate (*)
CO2
NOx class
Boiler water capacity
Maximum working pressure
Maximum admissible temperature
Minimum return temperature
Power supply
Maximum power consumption
Index of protection
Nozzles
Values achieved with G20 gas.
(*) Parameters refer to 0% residual O2 in the products of combustion and atmospheric pressure at sea level.
IMPORTANT!
For functioning with G30 or G31 gas, see the "Conversion from one gas type to another" section on page 31.
8
129
151
145,9
170,0
194,2
129,0
150,6
172,2
86,7
86,9
94,22
94,36
94,47
0,8
0,7
10,8
10,7
134
150
154
170
5,5
6,3
67,5
77,0
size
number
6
7
172
194
215
237
G20
20
II2H3P
B11BS
218,2
242,1
266,0
193,7
215,2
236,5
89,1
87,1
87,3
87,5
87,6
94,57
94,67
94,75
1,1
0,6
0,8
0,9
10,8
10,6
10,3
10,2
153
133
140
123
173
153
160
143
6,8
5,6
6,1
5,3
3
86,5
96,0
105,5
115,0
5
110
47
230~50
105
20
4,30
8
9
10
258
279
mbar
290,0
313,6
kW
257,8
279,1
kW
%
87,7
87,8
%
94,82
94,89
%
0,7
1,2
%
10,1
9,8
%
128
134
°C
148
154
°C
5,6
6,1
%
124,5
134,0
bar
°C
°C
Volt~Hz
W
IP
Ø mm
11
12
13
n°
l
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