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20170392
GB
Technical description of the burner
5.6
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, consult the
manufacturer.
The firing rates were obtained in special test boilers, according to
EN 267 standard.
In Fig. 3 you can see the diameter and length of the test
combustion chamber.
Example:
Output 650 Mcal/h (407 kW): diameter 60 cm - length 2 m.
MODULATING RATIO
The modulating ratio, obtained in test boilers according to
standard (EN 267) is 4:1.
Fig. 3
Combu
stio
n ch
amber
m
D497
Summary of Contents for PRESS 140 P/N
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Page 58: ...20170392 56 GB Appendix Electrical panel layout 0 1 1 1 STAR TRIANGLE START UP...
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