Firing Rate; Test Boiler - Riello RL 25/1 BLU Instrucciones De Instalación, Funcionamiento Y Mantenimiento

4.7

Firing rate

The burner output is chosen from within the diagram area
(Fig. 3). This area is known as the "firing rate" and provides the
burner output according to the pressure in the combustion cham-
ber.
The work point may be found by plotting a vertical line from the
desired delivery and a horizontal line from the pressure in the
combustion chamber The intersection of these two lines is the
work point which must lie within the firing rate.
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. 4).
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.
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Technical description of the burner
Heat output
10 GB
The firing rate value (Fig. 3) 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 16.
The firing rates were set in relation to special test boilers, accord-
ing to EN 267 regulations.
In Fig. 4 you can see the diameter and length of the test combus-
tion chamber.
Example:
Output 35 kg/h - diameter 50 cm - length 1.5 m
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Fig. 3
D454
Fig. 4