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English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
Warning
Before beginning installation
procedures, these installation and
operating instructions should be
studied carefully. The installation and
operation should also be in accordance
with local regulations and accepted
codes of good practice.
Warning
The use of this product requires
experience with and knowledge of the
product.
Persons with reduced physical,
sensory or mental capabilities must not
use this product, unless they are under
supervision or have been instructed in
the use of the product by a person
responsible for their safety.
Children must not use or play with this
product.

1. Symbols used in this document

Warning
If these safety instructions are not
Page
observed, it may result in personal
7
injury!
7
7
If these safety instructions are not
Caution
observed, it may result in malfunction
8
or damage to the equipment!
8
8
Notes or instructions that make the job
Note
easier and ensure safe operation.
8
9

2. General description

9
9
Discharge
10
port
10
11
11
11
11
Pump
sleeve
12
12
Suction
strainer
Fig. 1

2.1 Applications

The Grundfos Unilift AP pump is a single-stage
submersibl e pump designed for the pumping of
waste water.
The pump is capable of pumping water which
contains a limited quantity of solids, however not
stones and similar materials, without being blocked
or damaged.
The pump is available for automatic as well as
manual operation and can be installed in a
permanent installation or used as a portable pump.
Handle with
clamp
Level
switch
7

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Summary of Contents for Grundfos AP12

  • Page 1: Table Of Contents

    Fig. 1 Warning 2.1 Applications The use of this product requires The Grundfos Unilift AP pump is a single-stage experience with and knowledge of the submersibl e pump designed for the pumping of product. waste water.
  • Page 2: Storage And Operating Conditions

    The pump is suitable for: 2.3 Sound pressure level The sound pressure level of the pump is lower than Applications AP12 AP35 AP50 the limiting values stated in the EC Council Directive 2006/42/EC relating to machinery. Groundwater lowering ● ●...
  • Page 3: Checking Of Direction Of Rotation

    4.1 Checking of direction of rotation 5. Installation (Three-phase pumps only) Warning The direction of rotation should be checked every The installation of the pump must be time the pump is connected to a new installation. carried out by specially trained Check the direction of rotation as follows: persons.
  • Page 4: Pump Location

    5.2 Pump location 5.3 Setting of level switch The pump can be used in vertical or horizontal For pumps supplied with a level switch, the position with the discharge port as the highest point difference in level between start and stop can be set of the pump, see fig.
  • Page 5: Start-Up

    If Grundfos is requested to service the pump, In the case of long operating time or continuous Grundfos must be contacted with details about the operation, the oil should be replaced as follows: pumped liquid, etc.
  • Page 6: Fault Finding Chart

    2. In case such waste collection service does not exist or cannot handle the materials used in the product, please deliver the product or any hazardous materials from it to your nearest Grundfos company or service workshop. Subject to alterations.

This manual is also suitable for:

Ap35Ap50