Installation; Space Requirements; Pump Positions; Pipe Connection - Grundfos Unilift KP 250 Installation And Operating Instructions Manual

6. Installation

Do not install the pump hanging from the
electric cable or the outlet pipe.
Caution
Never lift the pump by the power supply
cable. Lift the pump using the pipe/hose or
a rope secured to the pump handle.
According to EN 60335-2-41/A2:2010, this
product with 5 metres of mains cable may
Note
be used only for indoor applications.

6.1 Space requirements

6.1.1 Unilift KP-A
If the pump is installed in a tank, the minimum
dimensions of the tank must be as shown in fig.
ensure free movability of the float switch. Figure
shows a pump with vertical level switch.
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B
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Fig. 2
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Minimum tank dimensions, Unilift KP-AV
Fig. 3
6.1.2 Unilift KP-M
The pump requires no more space than the physical
dimensions of the pump. See page 10.
4
2
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6.2 Pump positions

Unilift KP-A and Unilift KP-M can be used in vertical
position with the outlet pointing upwards. The pumps
may also be used in horizontal or tilted position with
the outlet as the highest point. See fig. 4.
How to place Unilift KP-A and Unilift KP-
Fig. 4
M
to
Always place Unillift KP-AV in vertical
Caution
position.
Place the pump so that the inlet strainer is not
covered in sludge, mud or similar materials. You can
ensure this by placing the pump on bricks, an iron
plate, or similar. See fig. 5.
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Pump placed on a plate
Fig. 5

6.3 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.
The pump must not be installed hanging
Caution
from the outlet pipe.
In a permanent installation with level switch, fit a
non-return valve to the outlet pipe or hose.
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