ADJUSTMENTS
AIR ADJUSTMENT
The easily accessible micrometric screw device (13) allows fine, stable,
precise adjustment of delivery air. After loosening the crown (12) turn
the screw clockwise to reduce throttle valve aperture: turn anticlockwise
to increase it.
NOZZLE HOLDER ADJUSTMENT
The special shape of the draught tube and the diffuser, the position of
which is adjustable even when the burner is working, allows optimisation
of combustion parameters right across the burner flow-rate range and
even in critical working conditions. Turn the screw (17) anticlockwise to
bring the nozzle holder forward and increase airflow around the diffuser.
Vice versa, turning the screw anticlockwise reduces the amount of air
passing through.
PUMP PRESSURE ADJUSTMENT
Pump pressure is calibrated at the factory at 12 Kg/cm
it be necessary, pressure can be adjusted by turning the screw (42). To
check the obtained pressure fit a pressure gauge on the pressure take-off
point (27).
N.B.: With a scale range of up to 30 Kg/cm
pump is min 7 - max 14 Kg/cm
2
. However, should
2
the working range of the
2
.
- 26
-
Fig. 7
Fig. 8
Fig. 9