Riello RLS 800/M MX, Installation, Use And Maintenance Instructions

Page: 12 / 64

20148124 10 GB
Technical description of the burner
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
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. 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.
ATTENTION
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.
Pre
ssu
re
in
th
e ch
amber
pre
ssu
re
-
mbar
Thermal power - kW
D10725
400 1200 2000 2800 3600 4400
0
2
4
6
8
10
12
14
16
18
20
5200 6000 6800 7600 8400
22
Class 3 EN676
Class 1 EN267
Class 3 EN676
Class 2 EN267
Fig. 2
Co
mbustion cha
m
b
er
m
D2448
Fig. 3