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For all the checks, use the wiring diagrams.
Always cut off the voltage before operating on electrical circuits.
Electrical maintenance is reserved for instructed and trained
personnel only.
Some interventions may require to operate on the panel UNDER
TENSION, use the necessary precautions.
2.
ADJUSTMENTS POTENTIOMETER
Inside at electric panel next to the potentiometer for adjusting the flow rate, there are 2 trimmers for setting
the minimum flow rate and maximum flow rate. In production These trimmers are adjusted to obtain the
maximum fan speed excursion, but due to the suction and unloading system these adjustments may have to
be reset.
For adjustment, proceed with the switchboard UNDER TENSION, danger risk of electrocution, proceed as
illustrated below.
ATTENTION ELECTRIC HAZARD
1
– Open electric panel
2
– Attention, having to operate with the panel
UNDER TENSION, please observe all the
appropriate precautions and to operate only and
exclusively on the indicated components that work at
LOW VOLTAGE (10 or 24 VDC)