Riello RS5 TL Installation, Use And Maintenance Instructions page 38

2.3 FIRING RATE
4.0
3.2
2.4
1.6
0.8
0
150 170
D6231
130.000
TEST BOILER
The firing rate has been defined according to EN 676 standard.
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 9.9 mbar is measured (M2, see chapter 3.5, page 6) with
the combustion chamber at 0 mbar using gas G20 with a net heat value of 10 kWh/m
10
9
8
7
6
5
4
3
2
150 170
D6232
130.000
3095
(as EN 676)
190 210 230
170.000
190 210 230
170.000 210.000
250 270 290
210.000 250.000
250 270 290
250.000
4
GB
310 330 350
290.000
Thermal power
(8.570 kcal/m
3
310 330 350
290.000
Thermal power
kW
kcal/h
).
3
kW
kcal/h