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5.4
Operating position
The burner is designed to operate only in
positions 1, 2, 3 and 4 (Fig. 9).
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 allow operation but
make maintenance and inspection of the
combustion head more difficult.
Any other position could compromise the
correct operation of the appliance.
Installation 5 is forbidden for safety reasons.
DANGER
5.5
Opening the burner
Disconnect the electrical supply from the burner
by means of the system main switch.
DANGER
Close the fuel shut-off valve.
DANGER
5.6
Preparing the boiler
5.6.1
Boring the boiler plate
Pierce the closing plate of the combustion chamber, as in Fig. 10.
The position of the threaded holes can be marked using the
thermal insulation screen supplied with the burner.
Model
RS 190/M
230
5.6.2
Blast tube length
The length of the blast tube must be selected according to the
indications provided by the manufacturer of the boiler, and in any
case it must be greater than the thickness of the boiler door
complete with its fettling.
The available length L (mm) is 372 mm.
For boilers with front flue passes 15)(Fig. 11), or flame inversion
chamber, a protection in refractory material 13)(Fig. 11) must be
inserted between the boiler fettling 14) and the blast tube
12)(Fig. 11).
This protection must not compromise the extraction of the blast
tube.
20154249
D455
A
B
325 - 368
Installation
1
For boilers with water-cooled front piece, the refractory protection
13-14)(Fig. 11) is not necessary, unless specifically requested by
the boiler manufacturer.
Fig. 10
C
M16
Tab. I
16
GB
2
3
Wait for the components in contact with heat
sources to cool down completely.
4
5
D7739
Fig. 9
D1324
Fig. 11
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