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;
– 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.
When the burner works at a firing rate higher
NOTE:
than 9 kg/h remove the panel fitted inside the
metal cover. (See figure).
ELECTRODES ADJUSTMENTS
Attention:
Before assembling or removing the nozzle, loosen
the screw (A) and move the electrodes ahead.
BURNER START-UP CYCLE
Normal
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
2399
4 ±
0.3 mm
D5288
~
12s
MOVE THE ELECTRODE
HOLDER BACKWARDS TO
THE END
A
Lock-out, due to light-failure
~
12s
9
GB
PANEL
D5287
4.5 ±
0.5 mm
~
5s
D5229