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ATTENTION:
The rotation sense can be checked visually. You must keep 1 metre
distance from the aerator, wear suitable clothes and never touch the
machine. (picture 4)
5.2 ELECTRICAL CONNECTIONS
(SEE PICTURE ON PAGES 17/18/19/20).
Do not never ever open the motor of the aerator.
Call qualified staff if necessary.
The whole electric installation must be carried out by qualified personnel who strictly
comply with all the current accident-prevention provisions in force.
The aerators must be equipped with motors with a voltage rating of 220,380,415,500
or 550V.
Always indicate for what voltage for the motor is prepared and if the starting must be
direct or star/delta.
Always verify that the supply voltage agrees with the specifications indicated on the
rating plate of the aerator.
As the motor of aerator is submerged, it must necessarily be connected to the grounding
circuit. The grounding conductors are yellow/green. All yellow/green conductors must
be connected to the grounding circuit of the system before the other conductors are
connected. The grounding conductors must be the last to be removed if the motor is
disconnected. The extreme ends of the cables must not ever in any situation be immersed
or be in contact with water.
Remember that the current intensity needed for the direct starting is 6 times the nominal
one, while in case of star/delta starting it is twice; make sure that the fuses are able to
tolerate this starting intensity.
Control panel
The control panel can be made up by a normal motor protector in case of direct starting
or by a star/delta aviator supplied with a motor protector relay.
Direct start: the motor protector must be adjusted at a current-carrying capacity equivalent
to the one on the rating plate.
Содержание SC 10
Страница 1: ...Tecnologie S C M SUBMERSIBLE AERATORS Wastewater Treatment Aeration Mixing ...
Страница 29: ...28 Main components Picture 5 Radial submerged aerator Silencer optional Intake pipe optional ...
Страница 31: ...30 MAINTENANCE RECORD Date Work performed Remarks ...
Страница 32: ...31 MAINTENANCE RECORD Date Work performed Remarks ...
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