Checking The Direction Of Rotation; Operation; Unilift Kp-A; Forced Operation - Grundfos Unilift KP serie Montage- Und Betriebsanleitung

6.5.1 Checking the direction of rotation

Three-phase pumps only
Check the direction of rotation every time the pump
is connected to a new installation.
1. Place the pump on a plane surface.
2. Start and stop the pump.
3. Observe the pump when started. If the pump
gives a slight clockwise jerk, see fig. 9, the
direction of rotation of the motor is correct. If the
jerk is counter-clockwise, interchange two
phases in the mains connection.
DIN EN 12050-2
A R56
TYPE UNILIFT KP XXX
Serial no XXXXXXXXXXXX
XXXXX
U XXXXXXXXXX 50 Hz
P1 XXXX XXXX
Ins cl X
Fig. 9 Direction of rotation
If the pump is connected to a pipe system, check the
of direction of rotation in this way:
1. Start the pump and check the quantity of water.
2. Stop the pump and interchange two phases in the
mains connection.
3. Start the pump and check the quantity of water.
4. Stop the pump.
5. Compare the results taken under points 1 and 3.
The largest quantity of water indicates the correct
direction of rotation.
8
Made in XXXXXX
Tmax XX° C
Omax XX m /h 3
Hmax xx m
IP68
10 m

7. Operation

7.1 Unilift KP-A

The pump will start and stop automatically,
depending on the liquid level and the cable length of
the float switch.

Forced operation

If the pump is used for draining liquid below the stop
level of the float switch, the float switch can be held
in a higher position by fastening it to the outlet pipe.
During forced operation, check the liquid level
regularly to avoid dry running.

7.2 Unilift KP-AV

The pump starts and stops automatically depending
on the liquid level.

7.3 Unilift KP-M

The pump is started and stopped via an external
switch.
To avoid dry running, check the liquid level regularly
during operation, for instance via external level
monitoring.
To enable the pump to self-prime during startup, the
liquid level must be at least 30 mm.
The pump can pump down to a liquid level of 15 mm.