Pumped Liquids; Application 3 3 Caution; Functions; Operating Conditions - Grundfos Unilift KP 150 Installation And Operating Instructions Manual

3. Application
Unilift KP 150, KP 250 and KP 350 are single-stage
submersible pumps designed for the pumping of
grey wastewater.
The Unilift KP 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 designed for the following 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
• inflammable 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
Min. 0 °C.
Maximum liquid temperature depends on the rated
voltage of the pump. See this table:
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 are
allowed, however, to run at max. +70 °C for periods
not exceeding 2 minutes.
1)
Voltage variant for Unilift KP 350
Storage temperature
-20 °C to +70 °C.
Installation depth
Max. 10 m below liquid level.
Always have at least 3 m free cable
above liquid level. This limits
Caution installation depth to 7 m for pumps
with 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.
Max. liquid
temperature
[°C]
+35
+40
+40
+50
1)
+50
+50
+35
+50 (KP 350: +45)
+40
+35
+50
+50
+35
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