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20098687
12
GB
Technical description of the burner
4.8
Test boiler
The firing rates were set in relation to special test boilers, accord-
ing to EN 676 regulations.
In Fig. 4 you can see the diameter and length of the test combus-
tion chamber.
Example:
Output 407 kW (350 Mcal/h) - diameter 50 cm, length 1.5 m.
The coupling is ensured when the boiler is EC type-approved; for
boilers or ovens with combustion chambers of very different di-
mensions compared to those shown in the diagram of (Fig. 4)
preliminary checks are recommended.
4.8.1
Commercial boilers
The burner is suitable for operating on both flame inversion boil-
ers as well as on boilers with a combustion chamber with run-off
from the bottom (three flue passes) on which the best results for
low NO
x
emissions are obtained.
The maximum thickness of the boiler front door must not exceed
200 mm (see Fig. 5).
The coupling is ensured when the boiler is EC type-approved; for
boilers or ovens with combustion chambers of very different di-
mensions compared to those shown in the diagram of (Fig. 4)
preliminary checks are recommended.
4.9
Burner equipment
The burner is supplied complete with:
Gas train flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Gasket for gas train flange . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Thermal insulation screen . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Flange fixing screws M8 x 25. . . . . . . . . . . . . . . . . . . . . . . No. 4
M8 x 25 screws for fixing the burner flange to the boiler . . No. 4
Cable grommets for the electrical wiring . . . . . . . . . . . . . . No. 5
Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Fig. 4
L
e
n
g
th
o
f
c
o
m
b
u
s
tio
n
c
h
a
m
b
e
r
-
m
D497
Fig. 5
200 mm MAX
D1079
Summary of Contents for 3897304
Page 2: ...Translation of the original instructions ...
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