Direction Of Rotation; Resetting The Pump; Maintenance And Service; Recommended Cleaning Intervals For Sensors In Standard Pumps - Grundfos SEG AUTOADAPT Montage- Und Betriebsanleitung

10.3 Direction of rotation

All single-phase pumps are factory-wired for the
correct direction of rotation.
The electronics incorporated in three-phase pumps
ensure 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 impeller rotates clockwise when
viewed from above. When started, the
Note
pump will jerk in the opposite direction of
the direction of rotation.
Fig. 12 Jerk direction

10.4 Resetting the pump

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

11. 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.
Make sure that the power supply cannot
be accidentally switched on.
All rotating parts must have stopped
moving.
Warning
Except for service on the pump parts, all
other service work must be carried out by
Grundfos or a service workshop
authorised by Grundfos and approved for
servicing explosion-proof products.
Before carrying out maintenance and service, flush
the pump thoroughly with clean water. Rinse the
pump parts in water after dismantling.
Warning
When loosening 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
11.1 Recommended cleaning intervals for
sensors in standard pumps
guidelines and should be matched to the
specific pit.
For explosion-proof pumps, the cleaning
intervals in section
intervals for sensors in explosion-proof
pumps must be observed.
During long periods of inactivity, we
Note
recommend that you check the function of
the pump.
11.1 Recommended cleaning intervals for
sensors in standard pumps
For cleaning of sensors, see section
the sensors.
Wastewater
Wastewater
containing dry
containing
solid matter or
grease
fibres
3 months 6 months
11.2 Required cleaning intervals for
sensors in explosion-proof pumps
For cleaning of sensors, see section
the sensors.
Wastewater
Wastewater
containing dry
containing
solid matter or
grease
fibres
3 months 6 months
are stated as
11.2 Required cleaning
11.6 Cleaning
Wastewater
without
grease, dry
solid matter or
fibres
12 months
11.6 Cleaning
Wastewater
without
grease, dry
solid matter or
fibres
6 months
17