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4.7
Firing rates
The MAXIMUM OUTPUT is chosen from within the diagram area
(Fig. 2).
The MINIMUM OUTPUT must not be lower than the minimum
limit of the diagram:
RLS 800/M MX = 1750 kW
22
20
18
16
14
12
10
8
6
4
2
0
400
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 (Fig. 3), consult the
manufacturer.
The firing rates were obtained in special test boilers, according to
EN 676 standard.
20148124
Technical description of the burner
1200
2000
2800
ATTENTION
3600
4400
5200
Thermal power - kW
In (Fig. 3) you can see the diameter and length of the test
combustion chamber.
Example:
Output 7000 kW
diameter 120 cm
length 6 m
MODULATING RATIO
The modulating ratio, obtained in the test boilers, according to the
standard (EN 676 for gas, EN 267 for light oil), is 2.5: 1.
10
GB
The firing rate value (Fig. 2) has been obtained
considering an ambient temperature of 20 °C, an
atmospheric pressure of 1013 mbar (approx. 0 m
a.s.l.), and with the combustion head adjusted as
shown on page 19.
Class 3 EN676
Class 1 EN267
Class 3 EN676
Class 2 EN267
6000
6800
7600
D2448
D10725
8400
Fig. 2
Fig. 3
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