Air Damper Adjustment; Electrodes Setting - Riello 40 G10 Installation, Use And Maintenance Instructions

8.6

Air damper adjustment

The regulation of the air-rate is made by adjusting the air
damper 1), after loosing the screws 2).
The settings indicated in the schedule refer to the burner with its
metal cover fitted and the combustion chamber with "zero" de-
pression.
These regulations are purely indicative. Each installation howev-
er, has its own unpredictable working conditions: actual nozzle
output; positive or negative pressure in the combustion-chamber,
the need of excess air, etc.
All these conditions may require a different air-damper setting.
It is important to take account of the fact that the
air output of the fan differs according to whether
the burner has its metal cover fitted or not.
WARNING
Therefore we recommended to proceed as follows:
- adjust the air damper as indicated in Tab. H, on page 22;
- mount the cover, simply by means of the upper screw;
- check smoke number;
- should it become necessary to modify the air output, remove
the cover by loosening the screw, adjust the air damper, re-
mount the cover and finally recheck the smoke number.
8.7

Electrodes setting

These dimensions Fig. 21 must be respected.
WARNING
Before assembling or removing the nozzle, loosen the screw (A)
and move the electrodes ahead.
Start-up, calibration and operation of the burner
2
4 ±
0.3 mm
24 GB
1
2
MOVE THE ELECTRODE
HOLDER BACKWARDS
TO THE END
A
D5514
Fig. 20
D5288
4.5 ±
0.5 mm
Fig. 21
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