Grundfos Unilift KP 150, Installation And Operating Instructions Manual

3.2.4 Pipe connection

Fit the outlet pipe or hose in the Rp 1 1/4 outlet. Steel pipes can be
screwed directly into the pump outlet.
In a permanent installation, fit a union to the outlet pipe to facilitate
mounting and removal. If a hose is used, fit a hose union.
In a permanent installation with a level switch, fit a non-return valve
to the outlet pipe or hose.

3.2.5 Start and stop levels

UNILIFT KP-A

For pumps supplied with a float switch, the difference in level
between start and stop can be adjusted by changing the free cable
length between the float switch and the pump handle.
•

An increased free cable length will result in fewer starts and
stops and a large difference in level.

•

A reduced free cable length will result in more frequent starts
and stops and a small difference in level.

The stop level must be above the pump inlet to prevent the pump
from taking in air.

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L

1

2

TM034446

Start and stop levels, UNILIFT KP-A

Pos.

Description

1

Start

2

Stop

UNILIFT KP-A start and stop levels

Minimum cable length

(L):

70 mm

Maximum cable length

(L):

150 mm

Pump type

Start

[mm]

Stop

[mm]

Start

[mm]

Stop

[mm]

KP 150 A
KP 250 A

290

140

335

100

KP 350 A

300

150

345

110

UNILIFT KP-AV

The level difference for pumps with a vertical level switch cannot be
adjusted. Start and stop levels appear from fig. Start and stop
levels, UNILIFT KP-AV.

1

2

TM01

1108

Start and stop levels, UNILIFT KP-AV

Pos.

Description

1

Start

2

Stop

Pump type

Vertical level switch

Start

[mm]

Stop

[mm]

UNILIFT KP 150 AV
UNILIFT KP 250 AV

180

100

UNILIFT KP 350 AV

190

110

8

English (GB)