Tabla De Contenido; General Description; Applications; Operating Conditions - Grundfos Unilift KP 150 Instrucciones De Instalación Y Funcionamiento

CONTENTS
1. General description
1.1 Applications
1.2 Operating conditions
1.3 Sound pressure level
2. Electrical connection
2.1 Checking of direction of rotation
3. Installation
3.1 Connection
3.2 Pump location
3.3 Adjustment of float switch
3.4 Vertical level switch
4. Operation and maintenance
4.1 Cleaning the pump
4.2 Replacement of parts
5. Fault finding chart
6. Disposal
Before beginning installation procedures,
these installation and operating instruc-
tions should be studied carefully. The
installation and operation should also be in
accordance with local regulations and
accepted codes of good practice.

1. General description

With float
switch
Fig. 1
1. Discharge port Rp 1¼.
2. Handle.
3. Clamp.
4. Suction strainer.
5. Outer casing.
6. Float switch.
7. Vertical level switch.

1.1 Applications

The Grundfos Unilift KP 150, KP 250 and KP 350
pumps are single-stage submersible pumps
designed for pumping grey wastewater.
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Pumps with float switch:
The pump is capable of pumping water which con-
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tains a limited quantity of solids up to 10 mm in diam-
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eter without being blocked or damaged.
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The pump is suitable for automatic as well as manual
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operation and can be installed in a permanent instal-
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lation or used as a portable pump.
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The pump is suitable for:
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• pumping of wastewater from washing machines,
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• drainage of cellars or buildings prone to flooding.
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• pumping in draining wells.
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• pumping in wells for surface water with inlets from
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• emptying swimming pools, ponds or fountains.
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Pumps with vertical level switch:
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The pump must only be used for the pumping of
clean ground water and drain water.
General:
The pump is not suitable for pumping:
• liquids containing long fibres,
• inflammable liquids (oil, petrol, etc.),
With vertical
• aggressive liquids.
level switch
Note: The pump contains approx. 70 ml of non-
poisonous motor liquid that may pollute the pumped
liquid if the pump should leak.

1.2 Operating conditions

Liquid temperature:
Minimum 0°C. The maximum liquid temperature
depends on the rated voltage of the pump, see the
table below.
* Voltage variant for Unilift KP 350
baths, sinks, etc. from low-lying parts of buildings
up to sewer level.
roof gutters, pits, tunnels, etc.
The pump must not be used in or at swim-
ming pools, garden ponds, etc. when there
are persons in the water.
Voltage
1 x 100 V, 50 Hz
1 x 110 V, 50 Hz
1 x 100-110 V, 50 Hz*
1 x 220-230 V, 50 Hz
1 x 220-240 V, 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
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 pump is
allowed, however, to run at maximum +70°C for
periods not exceeding 2 minutes.
Maximum
liquid temperature
+35°C
+40°C
+40°C
+50°C
+50°C
+50°C
+35°C
+50°C (+45°C KP 350)
+40°C
+35°C
+50°C
+50°C
+35°C