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Detach the combustion head from the burner, (Fig. 11):
loosen the 4 screws 3) and remove the cover 1);
remove the screws 2) from the slide bars 5);
remove the 2 screws 4) and pull the burner back on slide bars
5) by about 4";
install the extension bars 15)(Fig. 11, page 18) and re-screw
the screws 2) including the safety plate 16);
disconnect the electrode wires and then pull the burner com-
pletely off the slide bars.
4.6
Electrode positioning
To verify the correct position of the ignition electrode (Fig. 13), you
need to separate the combustion head from the rest of the burner.
Measures must be respected.
WARNING
4.7
Adjustment of the combustion head
At this point of the installation, the combustion head is fixed to the
boiler as shown in Fig. 12.
It is therefore especially easy to adjust, and this adjustment de-
pends only on the maximum output of the burner.
Two adjustments of the head are foreseen:
–
air adjustment
–
gas adjustment
In the diagram of Fig. 14, find the notch at which to adjust both air
and central gas/air.
Installation
D10592
Notch
19
1
2
1/ 8"
D10225
5/ 16"
Burner output
Fig. 12
Fig. 13
D2392
Fig. 14
20028248
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