Test Boiler - Riello DB 4 SE FGR Installation, Use And Maintenance Instructions

3.7

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. 2).
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.
Technical description of the burner
Thermal power
9 GB
In Fig. 2 you can see the diameter and length of the test combus-
tion chamber.
Example:
Output 4000 kW - diameter 100 cm - length 5 m
MODULATING RATIO
The modulating ratio, obtained in the test boilers in accordance
with current standards (EN 676 for gas), is 1:5.
D2448
Fig. 2
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