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6.7
Servomotor adjustment
The servomotor adjusts simultaneously, through driving gears,
the output and pressure of the air and the delivery of the fuel in
use. It performs a 130° rotation in 45s. After the adjustment made
in the factory to its 6 cams to allow an initial ignition.
Check that they are as shown below.
In the event of a modification, follow what is described below for
each cam:
Cam I (RED):
Do not make any adjustments.
ATTENTION
Cam II (BLUE):
It is recommended that no adjustments are made.
ATTENTION
Cam III (ORANGE):
Cam IV (YELLOW):
Cam V (BLACK):
Cam VI (GREEN):
Start-up, calibration and operation of the burner
130° (The same for all models).
Limits
rotation
maximum position.
0°
(The same for all models).
Limits
rotation
minimum position. With the
burner off, the air damper is
completely closed: 0°
Not used.
20° (The same for all models).
Adjusts the position of the
minimum output.
Not used.
Not used.
toward
20074577
toward
31
GB
Fig. 30
20176605
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