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5.4
Operating position
The burner is designed to operate only in
positions 1 and 4 (Fig. 9).
Installation 1 is preferable, as it is the only
one that allows the maintenance operations
WARNING
as described in this manual.
Installation 4 permits operation but makes
maintenance and inspection of the combus-
tion head more difficult.
5.5
Removal of the locking screws from the shutter
Remove the screws and the nuts 1)- 2)(Fig. 10),
before installing the burner on the boiler.
Replace them with the screws 3) M12x16 sup-
WARNING
plied with the burner.
5.6
Preparing the boiler
5.6.1
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.
5.6.2
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 refractory.
For boilers with front flue passes 1)(Fig. 12) or flame inversion
chamber, a protection in refractory material 5) must be inserted
between the boiler fettling 2) and the blast tube 4).
This protection must not compromise the extraction of the blast
tube.
For boilers with a water-cooled frontpiece, a refractory lining 2)-
5)(Fig. 12) is not necessary, unless expressly requested by the
boiler manufacturer.
1
2
Installation
Any other position could compromise the cor-
Installations 2, 3 and 5 are prohibited for
DANGER
3
4
20169024
20061924
mm
RS 1000/EV FGR
RS 1200/EV FGR
17
GB
rect operation of the appliance.
safety reasons.
5
D455
A
B
460
608
500
608
Fig. 9
Fig. 10
Fig. 11
C
M 20
M 20
Tab. H
20166543
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