06/2016 - Art. Nr. 4200 1041 1103A22
Air regulation
Combustion air is regulated at two
points:
- by two pressure regulators (VG5 M/TC
burners)
• on the pressure side, using the gap
between the baffle plate and the
burner tube.
• on the vacuum side, by the air flap
driven by servomotor Y10.
- by three pressure regulators (VG5 MV/
TC burners)
• pressure side, by the gap between
the baffle plate and the burner tube.
• vacuum side, by the air flap driven
by servomotor Y10.
- air adjustment through rotation speed
of fan motor, adjustment via frequency
drive.
Commissioning
Air regulation
The regulation of air in the burner
head affects not only the air flow but
also the mixing zone and the air
pressure in the burner tube. Turning
screw A
- to the right for more air
- to the left for less air
• Adjust dimension Y in accordance with
the settings table.
A Scale (0° to 90°) indicating the
servo drive setting
C Air flap position indicator
Checking the combustion
air regulation
The position of the air flap can be read
on the A scale.
Air regulation by air flap
Air is regulated on the vacuum side by
an air flap driven by servomotor Y10.
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