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4.7
Firing rates
The MAXIMUM OUTPUT is chosen from within the continuous
diagram area (Fig. 2).
The MINIMUM OUTPUT must not be lower than the minimum
limit of the diagram:
RLS 1300/EV C11 = 7500 kW
4.8
Test boiler
The burner/boiler combination does not pose any problems if the
boiler is EC approved and its combustion chamber dimensions
are similar to those indicated in the diagram (Fig. 3).
If the burner must be combined with a boiler that has not been EC
approved and/or its combustion chamber dimensions are clearly
smaller than those indicated in the diagram, consult the manufac-
turer.
The firing rates were set in relation to special test boilers, accord-
ing to EN 676 regulations.
20124030
Technical description of the burner
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
-2
1000
2000
3000
4000
5000
Thermal power – kW
The firing rate value (Fig. 2) has been obtained
considering an ambient temperature of 20 °C, an
atmospheric pressure of 1,013 mbar (approx. 0 m
a.s.l.), and with the combustion head adjusted as
WARNING
shown on page 21.
6000
7000
8000
9000
10000 11000
In Fig. 3 you can see the diameter and length of the test combus-
tion chamber.
Example:
Output 7000 kW - diameter 120 cm - length 6 m
MODULATING RATIO
The modulating ratio, obtained in test boilers, according to cur-
rent standards (EN 676 for gas, EN 267 for light oil), is of 1:5 for
gas and 1:4 for light oil.
10
GB
20125279
12000 13000 14000
D2448
Fig. 2
Fig. 3
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