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20140262
12
GB
Technical description of the burner
4.9
Test boiler
The firing rate has been defined on test boilers according to EN
676 standard.
4.9.1
Commercial boilers
The burner-boiler matching is assured if the boiler conforms to
EN 303 and the combustion chamber dimensions are similar to
those shown in the diagram EN 676.
For applications where the boiler does not conform to EN 303, or
where the combustion chamber is much smaller than the dimen-
sions given in EN 676, please consult the manufacturers.
Pressure in the combustion
Thermal power
100
110
0,4
-0,4
1,2
120
130
140
150
160
170
180
190
2,0
2,8
3,6
200
210
4,4
220
230
240
250
-1,2
-2,0
-2,8
-3,6
-4,4
260
Fig. 5
chamb
er –
mbar
kW
EN 676
EN 746-2
BS4F
20141464
Thermal power
Содержание 3761171
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