Direction Of Rotation; Resetting The Pump; Maintenance And Service - Grundfos SEG AUTOADAPT Montage- Und Betriebsanleitung

11.3 Direction of rotation

All single-phase pumps are factory-wired for the
correct direction of rotation.
The electronics incorporated in three-phase pumps
ensures that the pump does not start with a wrong
phase sequence, and consequently wrong direction
of rotation.
If the pump does not run, and the liquid level is
above the dry-running sensors, interchange L1 and
L2.
The pump rotates clockwise when
viewed from above. When started, the
Note
pump will jerk in the opposite direction
of the direction of rotation.
Fig. 11 Jerk direction

11.4 Resetting the pump

To reset the pump, switch off the power supply to the
pump for 1 minute, and switch it on again.

12. Maintenance and service

Warning
Before starting work on the pump,
make sure that the fuses have been
removed or the mains switch has been
switched off. It must be ensured that
the power supply cannot be
accidentally switched on.
All rotating parts must have stopped
moving.
Warning
Except for service on the hydraulic
part, all other service work must be
carried out by Grundfos or an
authorised service workshop approved
for servicing Ex products.
Before carrying out maintenance and service, it must
be ensured that the pump has been thoroughly
flushed with clean water. Rinse the pump parts in
water after dismantling.
Warning
When slackening the screws of the oil
chamber, note that pressure may have
built up in the chamber. Do not remove
the screws until the pressure has been
fully relieved.
The cleaning intervals in section 12.1
are stated as guidelines and should be
matched to the specific tank.
Note
For explosion-proof pumps, the
cleaning intervals in section 12.2 must
be observed.
During long periods of inactivity, it is
recommended to check the function of
Note
the pump.
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