Overview - BADU Block Multi 100 Traduction Du Instruction D'utilisation Originale

Faults
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7.1

Overview

Pos: 156 /Technische Dokumentation/Betriebsanleitung/Störung/Multi/Zu geringer Förderstrom der Pumpe @ 4\mod_1449582189147_370.docx @ 55385 @ @ 1
Fault: Too low a flow rate in the pump
Possible cause
Pumping against too high
a pressure.
Pump and pipes not
completely ventilated or
filled.
Intake or impeller
blocked.
Building of air sacks in
the piping.
Suction height too
large/Unit's NPSH
(intake) too low.
Drawing in air in the
mechanical seal.
Incorrect direction of
rotation.
Too low a speed.
Wear of components.
Running on two phases.
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34 EN
Solution
Set operating point again.

 Check unit for impurities.
Vent.

 Fill.
 Remove impurities.
 Modify piping or insert a
ventilation valve.
 Correct liquid levels.
 Install pump lower.
 Completely open shut-off valve
in the intake.
 If the resistance in the intake is
too large, modify the intake line.
 Check basket/suction opening.
 Observe the permitted pressure
reduction speed.
 Replace mechanical seal.
 Check the electrical connection
to the motor and switching
device.
 Increase the voltage/frequency
on the frequency converter
within the permitted range.
 Replace components.
 Renew faulty fuse.
Check electrical power

connections.
04/2016