20191053
16
GB
Installation
4.4
Operating position
4.5
Preparing the boiler
4.5.1
Boring the boiler plate
Pierce the closing plate of the combustion chamber, as in Fig. 11.
The position of the threaded holes can be marked using the ther-
mal insulation screen supplied with the burner.
Tab. F
4.5.2
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 range of lengths available, L, is as fol-
lows:
Tab. G
For boilers with front flue passes 15) or flame inversion chamber,
a protection in refractory material 13) must be inserted between
the boiler fettling 14) and the blast tube 12).
This protective fettling must not compromise the extraction of the
blast tube.
For boilers with a water-cooled front piece, a refractory lining 13)-
14)(Fig. 12) is not necessary, unless expressly requested by the
boiler manufacturer.
4.5.3
Securing the burner to the boiler
Separate the combustion head from the rest of the burner
(Fig. 12):
loosen the 4 screws 3) and remove the hood 1)
disengage the articulated coupling 7) from the graduated
sector 8)
remove the screws 2) from the two slide bars 5)
remove the two screws 4) and pull the burner back on the
slide bars 5) by about 100 mm.
disconnect the electrode cables, then completely unthread
the burner from the slide bars.
WARNING
The burner is designed to work only in posi-
tions
1, 2, 3
and
4
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.
Fig. 10
2
3
4
5
1
D7739
mm
D1
DF
RS 150
195
275 - 325
M12
mm
RS 150
Standard
280
Long
415
Ø
45
45
D F
D 1
Fig. 11
20149117
Provide an adequate lifting system.
WARNING
The seal between burner and boiler must be
airtight.
Fig. 12
D3036
