
English (GB)
3
English (GB) Installation and operating instructions
Original installation and operating instructions
These installation and operating instructions
describe Grundfos Unolift and Duolift lifting stations.
They apply to the tank and installation kits. For
detailed information on installing and operating the
pumps and controller, see the installation and
operating instructions supplied with these products.
Sections 1-6 give the information necessary to be
able to unpack, install and start up the product in a
safe way.
Sections 7-16 give important information about the
product, as well as information on service, fault
finding and disposal of the product.
CONTENTS
Page
1. General information
1.1 Symbols used in this document
1.2 Symbols on the product
2. Receiving the product
2.1 Transporting the product
1. General information 3
1.1 Symbols used in this document 3
1.2 Symbols on the product 3
2. Receiving the product 3
2.1 Transporting the product 3
2.2 Inspecting the product 4
2.3 Scope of delivery 4
3. Installing the product 6
3.1 General guidelines 6
3.2 Choice of tank inlets 6
3.3 Location 6
3.4 Tools 8
3.5 Installation overview 8
3.6 Positioning the product 8
3.7 Installing the tank 8
3.8 Drilling holes in the tank 8
3.9 Fitting the cable glands 9
3.10 Fitting the air vent 9
3.11 Fitting the venting pipe 9
3.12 Connecting the inlet pipes 9
3.13 Installing the pump in the tank 10
3.14 Inner connecting pipes 10
3.15 Installing the level sensor tube 13
3.16 Installing an alarm float switch 13
3.17 Assembling the discharge pipes 13
3.18 Installing a diaphragm pump 15
3.19 Installing the controller 15
3.20 Electrical connection 15
3.21 Setting the controller before start-up 15
4. Starting up the product 16
5. Monitor the increasing liquid level in the
tank up to the start level and check that
the pumps start and stop at least twice. 16
4.3 Storing the product 16
4.4 Storing the product 16
5. Product introduction 17
5.1 Product overview 17
5.2 Applications 17
5.3 Pumped liquids 17
5.4 Automatic operation 17
5.5 Identification 18
5.6 Diaphragm pump 18
5.7 Level sensor tube 18
6. Operating the product 19
6.1 Setting the start levels 19
7. Starting up the product after standstill 21
8. Servicing the product 21
9. Taking the product out of operation 21
10. Technical data 22
10.1 Operating conditions 22
10.2 Material 22
10.3 Electrical data 22
10.4 Dimensions and weights 22
11. Fault finding the product 23
12. Disposing of the product 25
Prior to installation, read this document.
Installation and operation must comply
with local regulations and accepted codes
of good practice.
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
personal injury.
WARNING
Indicates a hazardous situation which, if
not avoided, could result in death or
serious personal injury.
CAUTION
Indicates a hazardous situation which, if
not avoided, could result in minor or
moderate personal injury.
European Conformity
WARNING
Falling objects
• Death or serious personal injury
• Secure the product during
transportation to prevent it from tilting
or falling down.