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PART III: OPERATION
Adjusting the combustion head
The burner is factory-adjusted with the combustion head in the "MAX" position, accordingly to the maximum power. To operate the bur-
ner at a lower power, progressively shift back the combustion head, towards the "MIN" position, screwing the screw VRT. The ID index
shows how much the combustion head moved.
CAUTION: perform these adjustments once the burner is turned off and cooled.
Attention! if it is necessary to change the head position, repeat the air and fuel adjustments described above.
ID
VRT
34
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