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5.4
Operating position
The burner is designed to operate only in
positions 1 , 2 , 3 and 4 (Fig. 10).
Installation 1 is preferable, as it is the only
one that allows the maintenance operations
ATTENTION
as described in this manual.
Installations 2 , 3 and 4 permit operation but
make maintenance and inspection of the
combustion head more difficult.
1
D7739
5.5
Preparing the boiler
5.5.1
Introduction
The burners are suitable for operating both on boilers with flame
inversion
chambers
(*)
recommended in this instance) and on boilers having a
combustion chamber with bottom outflow (three passes), on
x
which the lowest NO
emissions are obtained.
*
(
) A kit for reducing CO is available for boilers with flame
inversion chambers, if necessary See Accessories.
The kit includes 5 gas tubes, identical to another 5 already
present in the burner head.
In standard conditions, burner head is equipped with a
second set of tubes, letting gas out in a different direction
compared to the previous tubes.
Using the kit, this second set of tube is replaced so that in the
end all tubes are the same.
After installing the kit, check its effectiveness by measuring
flue gas and CO.
5.5.2
Boring the boiler plate
Pierce the closing plate of the combustion chamber, as in Fig. 12.
The position of the threaded holes can be marked using the
thermal insulation screen supplied with the burner.
20152093
2
(the
long
head
model
Installation
Any other position could compromise the
Installation
DANGER
3
4
The boiler front door maximum thickness A)(Fig. 11), complete
with refractory, must not exceed:
being
Blast tube
RS 200/M BLU
A
D1079
mm
RS 200/M BLU
18
GB
correct operation of the appliance.
5
are
forbidden
reasons.
5
A (mm)
D455
A
B
230
325-368
for
safety
Fig. 10
250
Tab. I
Fig. 11
Fig. 12
C
M 16
Tab. J
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