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5.7
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. 17; 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), unscrew the grommet 15);
disconnect the socket from the maximum gas pressure
switch;
remove the two screws 4);
pull back the burner on the guides 5) by about 100 mm;
disconnect the probe and electrode leads, then unthread the
burner completely from the guides.
Installation
Once this operation has been carried out:
fix the flange 9) to the boiler plate, interposing the insulating
Use the 4 screws supplied, with a tightening torque of 35 -
9
1
2
5
D7950
27
GB
Before fixing the burner to the boiler, check for the
model RS 120/E BLU, if its maximum output is in-
cluded in area A or B of the firing rate (Fig. 2 at
page 13).
WARNING
If it is in area A, no intervention is required.
If it is in area B, it is necessary to pre-calibrate the
combustion head, as described in the paragraph
"Pre-calibrating the combustion head" at
page 28.
gasket 8) supplied.
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
13
13
4
15
14
3
12
11
10
L
8
3
Fig. 17
20068435
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