15
20098687
GB
Installation
5.4
Operating position
5.5
Preparing the boiler
5.5.1
Boring the boiler plate
Pierce the closing plate of the combustion chamber, as in Fig. 9.
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 lengths L available are:
For boilers with front flue passes 13)(Fig. 12), a protection in re-
fractory material 11) must be inserted between the boiler refrac-
tory 12) and the blast tube 10).
This protective fettling must not compromise the extraction of the
blast tube.
For boilers with a water-cooled front piece, a refractory lining 11)-
12)(Fig. 12) is not necessary, unless expressly requested by the
boiler manufacturer.
Tab. G
WARNING
➤
The burner is designed to operate only in
positions
1, 2, 3 and 4 (Fig. 8).
➤
Installation
1 is preferable, as it is the only
one that allows the maintenance operations
as described in this manual.
➤
Installations
2, 3 and 4 permit operation but
make maintenance and inspection of the
combustion head more difficult.
DANGER
➤
Any other position could compromise the cor-
rect operation of the appliance.
➤
Installation
5 is prohibited for safety reasons.
2
3
4
5
1
Fig. 8
D3928
Blast tube
Short (mm)
Long (mm)
RS 45/M BLU
229
354
mm
A
B
C
RS 45/M BLU
165
224
M 8
Fig. 9
D455
Summary of Contents for 3897304
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