Applications; Pumped Liquids; Functions; Operating Conditions - Grundfos Unilift KP 150 Instrucciones De Instalación Y Funcionamiento

3. Applications

Unilift KP 150, KP 250 and KP 350 are single-stage
submersible pumps designed for the pumping of
grey wastewater.
The pump can pump water with a limited content of
solid particles up to 10 mm diameter without being
clogged or damaged.
The pump can be used for automatic as well as
manual operation and is suitable for both permanent
and temporary use.
The pump is suitable for these applications:
• pumping in drain tanks
• pumping of wastewater from washing machines,
baths, sinks, etc. from low-lying parts of buildings
up to sewer level
• drainage of flooded cellars or buildings
• pumping in surface water drain tanks with inlets
from roof gutters, tanks, tunnels, etc.
• emptying of swimming pools, ponds or fountains.
Warning
Do not use the pump in or at swimming
pools, garden ponds, etc. when there
are persons in the water.

3.1 Pumped liquids

The pump is not suitable for these liquids:
• liquids containing long fibres
• flammable liquids (oil, petrol, etc.)
• aggressive liquids.
The pump contains approx. 70 ml of
non-toxic rotor liquid which will be
Note
mixed with the pumped liquid in case of
a leak.

4. Functions

Unilift KP-A
Automatic on/off operation via a float switch.
Unilift KP-AV
Automatic start/stop operation via vertical level
switch.
Unilift KP-M
Manual operation via external on/off switch.

5. Operating conditions

Liquid temperature
Minimum 0 °C.
The maximum liquid temperature depends on the
rated voltage of the pump. See the table below.
Voltage
1 x 100 V, 50 Hz
1 x 110 V, 50 Hz
1)
1 x 100-110 V, 50 Hz
1 x 220-230 V, 50 Hz
1 x 220-240 V, 50 Hz, 50 Hz
1 x 230-240 V, 50 Hz
1 x 100 V, 60 Hz
1 x 115 V, 60 Hz
1 x 220 V, 60 Hz
3 x 200 V, 50 Hz
1)
3 x 380-400 V, 50 Hz
3 x 380-415 V, 50 Hz
3 x 200 V, 60 Hz
At intervals of at least 30 minutes, the pumps may,
however, run at maximum 70 °C for periods not
exceeding 2 minutes.
1)
Voltage variant for Unilift KP 350.
2)
KP 350: 45.
Storage temperature
-20 - +70 °C.
Installation depth
Maximum 10 m below liquid level.
Always have at least 3 m free cable
above liquid level. This limits
installation depth to 7 m for pumps with
Caution
10 m cable and to 2 m for pumps with 5
m cable.
Pumps with 3 m cable are for industrial
Caution
applications only.

5.1 Sound pressure level

The sound pressure level of the pump is lower than
the limiting values stated in the EC Council Directive
2006/42/EC relating to machinery.
Maximum liquid
temperature
[°C]
35
40
40
50
1)
50
50
35
2)
50
40
35
50
50
35
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