Inhaltsverzeichnis; General Description; Applications; Storage And Operating Conditions - Grundfos Unilift AP12 Bedienungsanleitung

CONTENTS
1. General description
1.1 Applications
1.2 Storage and operating conditions
1.3 Sound pressure level
2. Safety
3. Electrical connection
3.1 Checking of direction of rotation
4. Installation
4.1 Connection
4.2 Pump location
4.3 Setting of level switch
5. Start-up
6. Maintenance and service
6.1 Pump construction
6.2 Contaminated pumps
7. Fault finding chart
8. 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

Discharge
port
Pump
sleeve
Suction
strainer
Fig. 1

1.1 Applications

The Grundfos Unilift AP pump is a single-stage sub-
mersible pump designed for the pumping of waste
water.
The pump is capable of pumping water which con-
tains a limited quantity of solids, however not stones
and similar materials, without being blocked or dam-
aged.
The pump is available for automatic as well as man-
ual operation and can be installed in a permanent
installation or used as a portable pump.
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Handle with
clamp
Level
switch
The pump is suitable for:
Applications
Groundwater lowering
Pumping in drainage pits
Pumping in surface wa-
ter pits with inflow from
roof gutters, shafts, tun-
nels, etc.
Emptying of ponds,
tanks, etc.
Pumping of fibre-con-
taining waste water from
laundries and industries
Pumping of surface wa-
ter from septic tanks and
sludge treating systems
Pumping of domestic
waste water without
discharge from water
closets
Pumping of domestic
waste water with dis-
charge from water
closets
Maximum particle size
[mm]
The pump must not be used in or at swim-
ming pools, garden ponds, etc. when there
are persons in the water.
Incorrect application of the pump (e.g. resulting in
blocking of the pump) and wear are not covered by
the warranty.

1.2 Storage and operating conditions

Storage temperature: Down to -30°C.
Minimum liquid
temperature:
Maximum liquid
temperature:
Installation depth:
pH value:
Density:
Viscosity:
Technical data:

1.3 Sound pressure level

The sound pressure level of the pump is lower than
the limiting values stated in the EC Council Directive
98/37/EC relating to machinery.
AP12 AP35 AP50
12 35 50
0°C.
+55°C continuously.
Up to +70°C for periods not
exceeding 3 minutes. Then
the pump must cool down.
Maximum 10 metres below
liquid level.
Between 4 and 10.
Maximum 1100 kg/m³.
Maximum 10 mm²/s.
See pump nameplate.