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WORKING RANGE
6
5
4
3
2
1
0
50
50,000
TEST BOILER
The working field has been defined according to DIN 4788 and EN 676 standards.
COMMERCIAL BOILERS
The burner-boiler matching is assured if the boiler is according to EN 303 and the combustion
chamber dimensions are similar to those shown in the diagram EN 676.
For applications where the boiler is not according to EN 303, or where the combustion chamber
dimensions differ from those shown in EN 676, please consult the manufacturers.
CORRELATION BETWEEN GAS PRESSURE AND BURNER OUTPUT
To obtain the maximum output, a gas head pressure of 5.5 mbar is measured with the combustion
chamber at 0 mbar using gas G20 with a net heat value of 10 kWh/m
7
6
5
4
3
2
50
50,000
2049
60
80
100
70,000
90,000
60
80
100
70,000
90,000
120
140
160
120,000
150,000
120
140
160
120,000
150,000
3
GB
180
200
220
180,000
Burner output
3
3
(8.570 kcal/m
180
200
220
180,000
Burner output
kW
kcal/h
D5150
).
kW
kcal/h
D5151
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