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4.6
Positioning electrode
Before fixing the burner to the boiler, check the
correct positioning of the electrodes as in Fig. 14.
WARNING
The following is required to perform the check:
remove the screw 1)(Fig. 13);
extract the inner part 2) of the head, and adjust them.
1
2
4.7
Securing the burner to the boiler
Provide an adequate lifting system of the burner.
Separate the combustion head from the rest of the burner, as in
Fig. 15; proceed as follows:
loosen the 4 screws 3) and remove the hood 1);
remove the screws 2) from the two guides 5);
disconnect the plug 14);
disconnect the socket from the maximum gas pressure
switch;
remove the two screws 4);
20186164
Fig. 13
5
2
1
20186165
Installation
4 . 5
m m
pull back the burner on the guides 5) by about 100 mm;
disconnect the electrode lead, then unthread the burner
completely from the guides.
Fix the flange 9) to the boiler plate, interposing the insulating
gasket 8) supplied.
Use the 4 screws supplied, with a tightening torque of 35 -
40 Nm, after protecting their thread with anti-seize products.
The seal between burner and boiler must be air-
tight; after the start-up, check there is no leakage
of flue gases into the external environment.
WARNING
9
4
3
17
GB
20187924
13
12
11
13
10
8
14
3
1 6
m m
Fig. 14
Fig. 15
20171664
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