Advance acoustic NOVA 3 Руководство по сборке, эксплуатации и техническому обслуживанию - Страница 15
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7.1 Alarm light
The control panel of vacuum unit has a red led called "ALARM": in the case it is illuminated,
the unit and consequently the fuel transport system stop. This blockage may be due to
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various causes. The most frequent are:
A - Lack of fuel in the storage tank.
B - A blockage in the fuel transport pipe does not allow the fuel fl ow in the dispenser.
C - The fuel inlet pipe is not airtight, so the air suction does not allow the fuel fl ow into the
dispenser.
D - The fuel discharge door of the dispenser does not close tightly, so there is an air suction
which does not allow the correct fl ow of the fuel in the dispenser.
In all these cases, after the vacuum unit has run three cycles without fuel suction, the failure
red led will turn on and the vacuum unit will no longer operate until manual reset.
Manual reset to eliminate the alarm should be done after solving the problem that produced
the block: the necessary operation is made by turning the illuminated switch 0-1 off and, after
10 seconds, turning it newly on.
7.2 Thermal switch
The thermal switch's task is to protect the electrical and electronic parts of the vacuum cleaning
unit from overcurrents and short circuits.
The button of the switch during correct operation will be positioned inside its own seat, while in
the event of a successful protection the button will be released from its seat.
The reset must be done manually by pressing the button, this operation will be effective only if
the cause of the block has been solved.
If blocking occurs repeatedly, the intervention of a specialized technician is necessary.
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31/05/2021 Rev:1.0.4