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4
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" depression.
These regulations are purely indicative. Each installation
however, 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.
Therefore we recommended to proceed as follows:
– adjust the air damper as indicated in the schedule (5);
– 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, remount the cover and finally recheck the smoke number.
ELECTRODE SETTING
Attention:
Before assembling or removing the nozzle, loosen
the screw (A) and move the electrodes ahead.
TYPE
B
705 M1
6,5 ± 0,5 mm
706 M1
4,5 ± 0,5 mm
2903360
2
4 ±
0.3 mm
D5288
A
8
GB
D5514
MOVE THE ELECTRODE
HOLDER BACKWARDS TO
THE END
1
2
B
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