Start And Stop Levels; Direction Of Rotation - Grundfos AP80-100 Montage- Und Betriebsanleitung

Minimum liquid level
Position Description
1 Minimum liquid level
P
1
2
3
S3 operation
Position Description
1 Operation
2 Stop
3 Duty cycle
14

6.2 Start and stop levels

Start and stop levels can be adjusted by changing the
free cable length of the float switch.
Long free cable = large difference in level.
Short free cable = small difference in level.
• To prevent air intake and vibrations, install the
stop level switch, so the pump is stopped before
the liquid level reaches the upper edge of the
clamp.
• Install the start level switch, so the pump is
started at the required level. The pump must
1
always be started before the liquid level reaches
the bottom of the inlet pipe.
Start and stop levels
t
Position
1
2
3

6.3 Direction of rotation

All single-phase pumps are factory-wired for the
correct direction of rotation. Before starting up three-
phase pumps, check the direction of rotation. An
arrow on the stator housing indicates the correct
direction of rotation.
Procedure 1:
Description
Alarm
Start
Stop
The impeller rotates clockwise. When
started, the pump jerks counterclockwise.
1
2
3