English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. Symbols used in this document
2. General description
2.1 Applications
Grundfos APG pumps are designed for pumping:
• wastewater
• sludge-containing water
• groundwater
• sewage from restaurants, hotels, camping sites,
etc.
The compact design makes the pumps suitable for
both temporary and permanent installation.
Furthermore, the pumps are suitable for free-
standing installation as well as installation on an
auto-coupling system.
The APG pumps are equipped with a cutter system
which cuts all destructible solids into small pieces so
that they can be led away through pipes of a
relatively small diameter.
2.1.1 Potentially explosive environments
Use the explosion-proof APG pump versions for
applications involving a risk of explosion.
1. Symbols used in this document
2
2. General description
2
2.1 Applications
2
2.2 Operating conditions
3
2.3 Sound pressure level
3
3. Safety
3
4. Transportation and storage
3
5. Identification
3
5.1 Nameplate
3
6. Installation
4
6.1 Installation on auto-coupling
4
6.2 Free-standing installation
4
6.3 Pumps with control box
4
6.4 Separate level controllers
5
7. Electrical connection
5
7.1 Motor protection
5
8. Startup
7
8.1 Direction of rotation
7
9. Maintenance and service
8
9.1 Replacement of cutter head
8
9.2 Service kits
9
9.3 Oil
9
9.4 Contaminated pumps
9
10. Fault finding
10
11. Disposal
10
Warning
Prior to installation, read these installation
and operating instructions. Installation and
operation must comply with local
regulations and accepted codes of good
practice.
Warning
If these safety instructions are not
observed, it may result in personal injury.
Warning
If these instructions are not observed, it
may lead to electric shock with consequent
risk of serious personal injury or death.
Warning
These instructions must be observed for
explosion-proof pumps.
If these safety instructions are not
observed, it may result in malfunction or
damage to the equipment.
Notes or instructions that make the job
easier and ensure safe operation.
If you order an explosion-proof pump, you
will receive a pump not labelled Grundfos.
We must emphasize that we comply with
all obligations with respect to warranty and
service of pumps sold by Grundfos as APG
pumps.
The explosion classification of the pumps
is EEx de IIB T4. However, the pumps
must in each individual case be approved
for use at the desired installation site by
the local authorities.
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