Firing Rates; Test Boiler - Riello RLS 800/EV MX Instructions Pour Installation, Utilisation Et Entretien

4.7

Firing rates

MAXIMUM OUTPUT must be selected in the hatched area of the
diagram. (Fig. 3)
MINIMUM OUTPUT must not be lower than the minimum limit
shown in the diagram:
RLS 800/EV MX = 1750 kW
22
20
18
16
14
12
10
8
6
4
2
0
400
4.8

Test boiler

The burner/boiler matching does not pose any problems if the
boiler is CE type-approved and its combustion chamber dimen-
sions are similar to those indicated in diagram (Fig. 4).
If the burner must be combined with a boiler that has not been CE
type-approved and/or its combustion chamber dimensions are
clearly smaller than those indicated in diagram (Fig. 4), consult
the manufacturer.
The firing rates were set in relation to special test boilers, accord-
ing to EN 676 regulations.
Technical description of the burner
1200 2000 2800
The firing rate area values (Fig. 3) have been ob-
tained considering a surrounding temperature of
20 °C, and an atmospheric pressure of 1013 mbar
(approx. 0 m above sea level) and with the com-
WARNING
bustion head adjusted as shown on page 19.
3600 4400 5200
Thermal output - kW
Fig. 4 indicates the diameter and length of the test combustion
chamber.
Example:
Output 7000 kW:
diameter 120 cm,
length 6m.
MODULATION RATIO
The modulation ratio, determined using test boilers according to
standard (EN 676 for gas, EN 267 for light oil), is 4 : 1.
9
GB
D10725
Class 3 EN676
Class 1 EN267
Class 3 EN676
Class 2 EN267
6000 6800 7600
D2448
8400
Fig. 3
Fig. 4
20010950