2049
3
GB
WORKING RANGE
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
3
(8.570 kcal/m
3
).
Pressure in the comb
ustion
c
hamber – mbar
D5150
0
Burner output
1
2
3
4
5
6
50,000
70,000
150,000
kcal/h
60
100
80
120
140
kW
160
120,000
180
200
220
50
180,000
90,000
2
4
5
6
7
Gas pressure
mbar
D5151
Burner output
50,000
70,000
150,000
kcal/h
60
100
80
120
140
kW
160
120,000
180
200
220
50
180,000
90,000
3
Содержание 577T1
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