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5.4
Operating position
The burner is designed to operate only in
positions 1, 2, 3 and 4 (Fig. 13).
Installation 1 is preferable, as it is the only
one that allows the maintenance operations
WARNING
WARNING
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
Boring the boiler plate
Pierce the closing plate of the combustion chamber, as in Fig. 14.
The position of the threaded holes can be marked using the ther-
mal insulation screen supplied with the burner.
5.5.2
Blast tube length
The length of the blast tube must be selected according to the in-
dications provided by the manufacturer of the boiler, and in any
case it must be greater than the thickness of the boiler door com-
plete with its fettling.
The available lengths L are those indicated in the table below.
Blast tube (mm)
RLS 68/E MX
RLS 120/E MX
For boilers with a front flue gas passes 13)(Fig. 16) or flame in-
version chamber, a protection device in refractory material 11)
must be inserted between the boiler fettling 12) and the blast tube
10).
This protective fettling must not compromise the extraction of the
blast tube.
For boilers with a water-cooled frontal, a refractory lining is not
necessary 11)-12) unless expressly requested by the boiler man-
ufacturer.
2
Short
Long
260
395
260
395
Installation
Any other position could compromise the cor-
Installation 5 is prohibited for safety reasons.
DANGER
3
mm
RLS 68/E MX
RLS 120/E MX
Tab. K
21
GB
rect operation of the appliance.
4
5
D455
A
B
195
275-325
195
275-325
Fig. 13
Fig. 14
C
M12
M12
Tab. L
20121288
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