20136130
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.
Thermal power
60
70
0,4
-0,4
1,2
80
90
100
110
120
130
140
150
160
170
180
190
2,0
2,8
3,6
200
210
Fig. 5
kW
BS3
20141034
Thermal power
Pre
ssure in th
e combustion
ch
amber –
mba
r
Pressure in the combustion
chambe
r –
mbar
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
260
kW
20141036
BS4
A
