Grundfos UNILIFT KP 150, UNILIFT KP 250, UNILIFT KP 350, UNILIFT CC 7, UNILIFT CC 5 Installation And Operating Instructions Manual

UNOLIFT, DUOLIFT

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

English (GB) Installation and operating instructions

English (GB)

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 1-4 give the information necessary to be
able to unpack, install and start up the product in a
safe way.

Sections 5-12 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

2.2 Inspecting the product

2.3 Scope of delivery

3. Installing the product

3.1 General guidelines

3.2 Mechanical installation

3.3 Tools

3.4 Installation overview

3.5 Positioning the product

3.6 Installing the tank

3.7 Drilling holes for the pipes

3.8 Fitting the cable glands

3.9 Fitting the vent port

3.10 Connecting the vent pipe

3.11 Connecting the inlet pipes

3.12 Installing the pump

3.13 Installing the pump connecting pipes

3.14 Installing the level sensor tube

3.15 Installing an alarm float switch

3.16 Installing the outlet pipes

3.17 Installing a diaphragm pump

3.18 Installing the controller

3.19 Electrical connection

3.20 Setting the controller before startup

4. Starting up the product

4.1 Starting up a product with a controller

4.2 Starting up a product without a controller

5. Storing the product

6. Product introduction

6.1 Product overview

6.2 Applications

6.3 Pumped liquids

6.4 Automatic operation

6.5 Identification

6.6 Diaphragm pump

6.7 Level sensor tube

7. Operating the product

7.1 Setting the start levels

8. Starting up the product after standstill

9. Servicing the product

10. Taking the product out of operation

11. Technical data

11.1 Operating conditions

11.2 Material

11.3 Electrical data

11.4 Dimensions and weights

12. Fault finding the product

13. Disposing of the product

2

2
2

3

3

1. General information

3
3

1.1 Symbols used in this document

5

5
6
7
7
7
7
7
8
8
8
8

9
10
12
12

1.2 Symbols on the product

12
14
14
14
14

15

15
15

15

15

15
16
16
16
16
16

Read this document before installing the
product. 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

16

17

17

19

19

20

20

20
20
20
20

21

21

2

2. Receiving the product

Caution

2.1 Transporting the product

WARNING

Falling objects

Death or serious personal injury

- Secure the product during
transportation to prevent it from tilting or
falling down.

CAUTION

Back injury

Minor or moderate personal injury

- Get assistance from another person or
use lifting equipment to carry the
product.

CAUTION

Crushing of feet

Minor or moderate personal injury

- Wear safety shoes when moving the
product.

2.2 Inspecting the product

1. Check that the product is as ordered.

2. Check that no visible parts have been damaged.

3. If parts are damaged or missing, contact your
local Grundfos sales company and refer to the
product numbers in section 2.3 Scope of delivery.

2.3 Scope of delivery

The scope of delivery depends on your order.
Pumps, tank and pipes are supplied separately and
must be assembled.

If used for a liquid which is injurious to
health or toxic, the pump will be classified
as contaminated.

Before the pump is returned to Grundfos for service,
the safety declaration at the end of these instructions
must be filled in by authorised personnel and
attached to the pump in a visible position.

If Grundfos is requested to service the pump, it must
be cleaned before it is returned.

If proper cleaning is not possible, all relevant
information about the pumped liquid must be
provided.

If the above is not fulfilled, Grundfos can refuse to
accept the pump for service.

Possible costs of returning the pump are to be paid
by the customer.

The safety declaration can be found at the end of these
instructions (only in English).

2.3.1 Description of kits

Tank

Designation

Tank 1 1

Cover with gasket 1 2

Screw, M8 x 30 12 24

Washer 12 24

Fastening bracket for
level sensor tube

Screw for fixing the tank 4 4

Expansion anchor for
fixing the tank

Socket seal, DN 40 1 1

Socket seal, DN 100 1 1

Quantity

270 litres 540 litres

22

44

English (GB)

3

English (GB)

Pump connecting pipes

Designation

KP/

CC

Quantity

SEG APB

Pump connecting pipes

Designation

KP/

CC

Quantity

SEG APB

Adapter,
Rp 2 - R 1 1/2

Double nipple,
R 2 - R 2

Nut, PVC, 2" 1 1 1

O-ring, ∅60,
EPDM

Adapter 2 2 2

Stainless-steel
clamp

Flexible
connecting
tube, ∅50

Elbow, 90 ° - 1 1

Flange, ∅50 - 1 -

Screw for
flange

Washer for
flange

11-

111

--1

222

111

-4-

-8-

Nut, M16, for
flange

O-ring, ∅50, for
flange

Unilift KP:
Double nipple

Unilift CC:
Adapter
1 1/2" - 1 1/4"

Unilift KP:
Non-return flap
valve

Thread tape 1 1 1

Vent port

Socket, PVC,
75 x 63 x 2"

Gasket, EPDM,
∅63

Nut, PVC, 2" 1 1 1

Other components

Schuko plug 1 - 1

Cable gland,
M20

Cable gland,
M25

* The kit for pump connecting pipes contains a

non-return valve for the Unilift KP pump. The
Unilift CC pump is supplied with a non-return
valve.

-4-

-1-

1--

1--

1*

111

111

212

-1-

4

Accessories

We recommend the following accessories.

Outlet pipe

Quantity

Designation

Non­return
valve

Double
nipple

Isolating
valve

Union nut - - 2 2

T-piece,
PVC, 90 °

Elbow,
PVC, 90 °

Pipe,
∅50, 2 m

Unolift Duolift

CC/KPAPB/

-* 1 -* 2

-135

1111

--11

--22

--11

SEG

CC/KPAPB/

SEG

3. Installing the product

3.1 General guidelines

The guidelines for correct mechanical installation of
lifting station are according to EN 12056-4.

• If the lifting station is installed in a basement with
recurrent penetration of groundwater, we
recommend that you install a drainage pump in a
separate pump sump below floor level. In some
countries the drainage pump is mandatory. If
there is only a risk of penetrating groundwater,
we recommend that you install a float switch
outside the lifting station and connect it to a
controller which indicates high-level alarm in
case of flooding.

• Fix the tank to the floor.

• We recommend that you connect a diaphragm
pump to the tank to be able to empty the tank
manually.

• All outlet pipes from the lifting station, diaphragm
pump and drainage pump must have a backflow
loop, i.e. a bend above the local backflow level.
Commonly, the highest point of the bend must be
above street level. See fig. 2.

• Surface water must not be discharged into the
lifting station inside the building. Collect and
discharge surface water outside the building.

• Install a non-return valve at the outlet of the lifting
station to prevent backflow.

• Fit isolating valves at the inlet and outlet of the
lifting station.

• The volume of the outlet pipe above the non­return valve up to the backflow loop must be
smaller than the effective tank volume. See pos.
7 in figures 1 and 2.

• In general, a lifting station for black wastewater
must be vented above roof level. However, it is
permitted to lead the vent pipe into the main
building ventilation system. Place special two­way venting valves outside the building.

• If the wastewater is discharged into a collecting
line, the collecting line must have a filling ratio of
at least h/d = 0.7. The collecting line must be at
least one nominal diameter bigger after the outlet
pipe connection.

• Use 45 ° bends to avoid deposits in the pipes.

English (GB)

Thread
tape

* The Unilift CC pump is supplied with a non-return

valve.

1111

5

3.2 Mechanical installation

6

2

3

4

5

1

7

16

3

4

5

7

English (GB)

3.2.1 Tank inlets

We recommend that you connect the inlet pipes to
the top inlets of the tank. This prevents backflow and
deposits in the inlet pipe, and enables a high start
level of the pump. A high start level increases the
effective tank volume and reduces the number of
start/stops of the pumps.

Fig. 1 Installation example with a tank in a sump and with a controller. The diaphragm pump is not

shown.

3.2.2 Location

Install the lifting station in a properly lit and vented
room with 60 cm free space around all parts to be
serviced and operated.

The tank must not be exposed to direct sunlight. UV
light can affect the properties of its composite
material, resulting in a shorter life.

The product is designed for indoor operation. If
installed outside, the lifting station must be placed in
a closed pit.

The tank can be flooded and may be installed in a
basement with risk of penetrating groundwater.

Pos. Designation

1 Isolating valve, inlet

2 Controller

3 Drainage pump

4

5 Isolating valve, outlet

6 Vent pipe

7 Backflow loop

TM06 5789 0216

Non-return valve,
outlet

Pos. Designation

1 Isolating valve, inlet

3 Drainage pump

Non-return valve,

4

outlet

5 Isolating valve, outlet

Fig. 2 Installation example with a tank on the basement floor. The diaphragm pump is not shown.

6 Vent pipe

7 Backflow loop

TM06 5790 0216

6

3.3 Tools

• Thread tape

•glue.
Not supplied with the product:

• drilling machine

• drilling bits: ∅20, ∅25

• hole saw: ∅40, ∅100

• deburring tool for polyethylene.

3.4 Installation overview

Depending on your product type, you must go
through different steps to install your lifting station.
You may need to go through additional steps if you
have ordered accessories.

Lifting station with pumps with float switches

1. Fix the tank to the floor.

2. Drill holes for the inlet pipes.

3. Connect the inlet pipes to the tank.

4. Fit the vent port and the cable glands.

5. Set the start levels by adjusting the cable length
of the float switch.

6. Install the pumps in the tank.

7. Fit the pump connecting pipes.

8. Connect the vent pipe.

9. Connect the outlet pipes.

Lifting station with controller

1. Fix the tank to the floor.

2. Drill holes for the inlet pipes.

3. Connect the inlet pipes to the tank.

4. Fit the vent port and the cable glands.

5. Install the pumps in the tank.

6. Fit the level sensor tube in the tank.

7. Fit the pump connecting pipes.

8. Connect the vent pipe.

9. Connect the outlet pipes.

3.5 Positioning the product

CAUTION

Back injury

Minor or moderate personal injury

- Get assistance from another person or
use lifting equipment to carry the
product.

3.6 Installing the tank

Fix the tank to the floor to prevent uplift and twist.
Use the mounting brackets to fix the tank with
screws.

Fig. 3 Fixing the tank to the floor

3.7 Drilling holes for the pipes

CAUTION

Sharp element

Minor or moderate personal injury

- Wear protective gloves.

The tank has three or four holes, ∅100, for the inlet
pipes, depending on the size. The tank also has a
hole, ∅40, for the diaphragm pump. See section

6.1 Product overview. These holes must be drilled to

be used.
Holes for the outlet pipes, the vent port and the

minimum required cable glands are open.

1. Determine which inlets you want to use. See
sections 3.2.1 Tank inlets and 7.1 Setting the

start levels.

2. Drill holes with a hole saw. The diameter of the
hole saw must be the same as the diameter of
the pipe.

Inlet: ∅100

Hole for diaphragm pump: ∅40

3. Deburr the holes.

English (GB)

TM06 5780 0116

CAUTION

Crushing of feet

Minor or moderate personal injury

- Wear safety shoes when moving the
product.

Position the tank so that all components are easily
accessible during operation and maintenance.

TM06 5851 0216

Fig. 4 Drilling holes for pipes

7

3.8 Fitting the cable glands

English (GB)

Choose the appropriate cable gland:

Cable gland for Unilift pumps: M20

Cable gland for SEG pumps: M25

Cable gland for level sensor hose: M20

Fig. 5 Fitting the cable glands

3.9 Fitting the vent port

1. Fit the gasket on the socket.

2. Fit the nipple in the hole on top of the tank.

3. Fit the nut inside the tank and tighten it.

3.10 Connecting the vent pipe

The vent pipe is not supplied with the product.
You can connect your vent pipe to the vent port in

three different ways:

• By means of a PVC vent pipe with an outer
diameter of 63 mm and glue.

• By means of a flexible pipe connection with an
inner diameter of 75 mm and with clamps. A
flexible pipe connection with clamps is available
as an accessory.

• By means of a PP double nipple with an inner
diameter of 75 mm. The nipple must comply with
EN 1451.

3.11 Connecting the inlet pipes

You can connect three or four inlet pipes to the tank,
depending on the tank size. First you must drill the
holes. See section 3.7 Drilling holes for the pipes.

1. Fit the socket seal in the inlet.

2. Connect the isolating valve to the inlet pipe. The
isolating valve is an accessory. Product number

96615831.

TM06 5779 0116TM06 5924 0316

3. Insert the inlet pipe into the socket seal.

Fig. 6 Fitting the vent port

8

TM06 5859 0216

Fig. 7 Connecting an inlet pipe with an

isolating valve