Grundfos Unilift CC 5 User manual

GRUNDFOS INSTRUCTIONS
Unilift CC 5, CC 7, CC 9
Installation and operating instructions
US
C

2
English (US)
English (US) Installation and operating instructions
Original installation and operating instructions
These installation and operating instructions
describe Grundfos Unilift CC 5, CC 7 and CC 9.
Sections 1-5 give the information necessary to be
able to unpack, install and start up the product in a
safe way.
Sections 6-10 give important information about the
product, as well as information on service, fault
finding and disposal of the product.
CONTENTS
Page
1. Limited warranty 3
2. General information 3
2.1 Hazard statements 3
2.2 Notes 4
3. Receiving the product 4
3.1 Inspecting the product 4
3.2 Scope of delivery 4
4. Installing the product 4
4.1 Lifting the product 5
4.2 Mechanical installation 5
4.3 Electrical connection 8
5. Starting up the product 9
5.1 Starting 9
5.2 Venting the product 10
5.3 Manual operation 10
5.4 Automatic operation with float switch 10
5.5 Pumping to a low water level 10
5.6 Thermal protection 10
6. Product introduction 11
6.1 Product description 11
6.2 Applications 12
6.3 Identification 13
7. Servicing the product 13
7.1 Maintaining the product 13
7.2 Cleaning the pump 14
7.3 Service kits 14
7.4 Contaminated pumps 14
8. Fault finding the product 15
9. Technical data 16
9.1 Operating conditions 16
9.2 Electrical data 16
9.3 Mechanical data 17
9.4 Dimensions and weights 17
10. Disposing of the product 17
Read this document before installing the
product. Installation and operation must
comply with local regulations and
accepted codes of good practice.
Successful operation depends on
careful attention to the procedures
described in this manual. Keep this
manual for future use.

3
English (US)
1. Limited warranty
Products manufactured by Grundfos Pumps
Corporation (Grundfos) are warranted to the original
user only to be free of defects in material and
workmanship for a period of 24 months from date of
installation, but not more than 30 months from date
of manufacture. Grundfos' liability under this
warranty shall be limited to repairing or replacing at
Grundfos' option, without charge, F.O.B. Grundfos'
factory or authorized service station, any product of
Grundfos manufacture. Grundfos will not be liable for
any costs of removal, installation, transportation, or
any other charges that may arise in connection with
a warranty claim.
Products which are sold, but not manufactured by
Grundfos, are subject to the warranty provided by
the manufacturer of said products and not by
Grundfos' warranty.
Grundfos will not be liable for damage or wear to
products caused by abnormal operating conditions,
accident, abuse, misuse, unauthorized alteration or
repair, or if the product was not installed in
accordance with Grundfos' printed installation and
operating instructions and accepted codes of good
practice. The warranty does not cover normal wear
and tear.
To obtain service under this warranty, the defective
product must be returned to the distributor or dealer
of Grundfos' products from which it was purchased
together with proof of purchase and installation date,
failure date and supporting installation data. Unless
otherwise provided, the distributor or dealer will
contact Grundfos or an authorized service station for
instructions. Any defective product to be returned to
Grundfos or a service station must be sent freight
prepaid; documentation supporting the warranty
claim and/or a Return Material Authorization must be
included if so instructed.
Grundfos will not be liable for any incidental or
consequential damages, losses, or expenses arising
from installation, use, or any other causes. There are
no express or implied warranties, including
merchantability or fitness for a particular purpose,
which extend beyond those warranties described or
referred to above. Some jurisdictions do not allow
the exclusion or limitation of incidental or
consequential damages and some jurisdictions do
not allow limitations on how long implied warranties
may last. Therefore the above limitations or
exclusions may not apply to you. This warranty gives
you specific legal rights and you may also have other
rights which vary from jurisdiction to jurisdiction.
Products which are repaired or replaced by Grundfos
or authorized service center under the provisions of
these limited warranty terms will continue to be
covered by Grundfos warranty only through the
remainder of the original warranty period set forth by
the original purchase date.
2. General information
2.1 Hazard statements
The following symbols and hazard statements may
appear in Grundfos installation, operating, safety
and service instructions.
The hazard statements are structured in the
following way:
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.
SIGNAL WORD
Description of hazard
Consequence of ignoring the warning.
- Action to avoid the hazard.

4
English (US)
2.2 Notes
The symbols and notes below may appear in
Grundfos installation, operating, safety and service
instructions.
3. Receiving the product
3.1 Inspecting the product
Check that the product received is in accordance
with the order. Contact the supplier if the delivery
differs from the order.
Check that the voltage and frequency of the product
match voltage and frequency of the installation site.
Contact the supplier if product electrical
requirements do not fit those of the installation site.
3.2 Scope of delivery
The box contains the following items:
• pump
• power cable
• float switch, if included with the model
• installation and operating instructions.
4. Installing the product
Observe these instructions for
explosion-proof products.
A blue or grey circle with a white
graphical symbol indicates that an
action must be taken.
A red or grey circle with a diagonal
bar, possibly with a black graphical
symbol, indicates that an action must
not be taken or must be stopped.
If these instructions are not observed,
it may result in malfunction or damage
to the equipment.
Tips and advice that make the work
easier.
CAUTION
Crushing of feet
Minor or moderate personal injury
- Wear safety shoes when handling
the product.
- Use the pump handle to move the
pump. Do not lift it by the power
cable.
DANGER
Electric shock
Death or serious personal injury
- The installation, electrical
connection, and maintenance of
the product must be carried out by
an authorized electrician in
accordance with National Electrical
Code (USA), Canadian Electrical
Code (Canada) and any state, local
governing codes and regulations.
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before
starting any work on the product.
- Make sure that the power supply
cannot be accidentally switched
on.
DANGER
Electric shock
Death or serious personal injury
- Pump installation in a sump pit,
basin or tank must be carried out
by qualified, specially trained
persons in accordance with the
National Electrical Code (USA),
Canadian Electrical Code
(Canada), and any state, local
governing codes and regulations.
DANGER
Electric shock
Death or serious personal injury
- Route the power cable in a way
that supports it and protects it from
being cut, pinched or damaged.
- If the power cable is cut, pinched,
or damaged, replace it before
using the product.

5
English (US)
4.1 Lifting the product
Lift the pump by the lifting handle. Never lift the
pump by the power cable. Tie a rope to the lifting
handle instead.
Fig. 1 Lifting the pump
4.2 Mechanical installation
4.2.1 Pipe connection
Connecting the outlet pipe
You can connect the outlet pipe to the pump outlet
port on the top or the side by means of an adapter.
Use the 90 ° adaptor for the side outlet port.
Fig. 2 Connecting the outlet pipe
The adapter enables connection of a pipe or hose
matching 3/4", 1" and 1 1/4" NPT external pipe
thread.
Cut off the adapter so that it matches the outlet pipe
diameter. If a system gasket is used between the
outlet pipe and the adapter, the cut-off adapter must
have an even and smooth surface.
Connect the outlet pipe from the fixed installation
directly to the pump outlet port. If the adapter
supplied with the pump is to be used, cut off the 3/4"
and 1" sockets.
Comply with local standards when connecting the
multifunctional adapter to a pipe in a permanent
installation.
DANGER
Electric shock
Death or serious personal injury
- Do not remove the power cable
and strain relief.
- Do not connect electrical conduit to
the pump.
WARNING
Electric shock
Death or serious personal injury
- Connect the product only to a
properly grounded receptacle.
- We recommend that you connect
the pump to an electrical circuit
with a Ground Fault Circuit
Interrupter (GFCI).
WARNING
Moving parts
Minor or moderate personal injury
- Make sure that persons cannot
come into contact with moving
parts.
If the pump is used without a float
switch, use an approved level
controller with a motor protection unit
and set the current rating to match the
nominal current marked on the
product's nameplate.
Observe local regulations setting
limits for manual lifting and handling.
Do not lift the pump by the power
cable or by the outlet pipe or hose.
If the pump is installed in a well or
tank, lower and lift it by means of a
wire or chain fastened to the pump
handle.
Make sure that the system in which
the pump is incorporated is designed
for the maximum pump pressure.
The pump has been evaluated for use
with water only.
TM06 9521 2417
TM06 9523 2417

6
English (US)
4.2.2 Location
Unilift CC 5, CC 7 and CC 9 pumps are suitable for
both stationary and portable use.
Minimum free cable length
Fig. 3 Location of pump
4.2.3 Minimum space
Pump without a float switch
A pump installed without a float switch requires
space that corresponds to the physical dimensions of
the pump.
Pump with a float switch
A pump installed with a float switch requires 2 inches
(5 cm) free space between the float switch and the
wall. The free space ensures free movability of the
float switch. See fig. 3and fig. 4and the following
table for minimum pit dimensions for a pump with a
float switch.
Fig. 4 Minimum installation dimensions, refer
to the table below
Minimum pit dimensions for a pump with a float
switch:
Pump with a lever arm
If supplied with a lever arm, you can install the Unilift
CC pump in a narrow pit.
The minimum dimensions for a narrow pit are 11.8 x
13.8 inches (300 x 350 mm).
Fig. 5 Unilift CC with a lever arm
4.2.4 Foundation
We recommend that you place the pump on a solid
base. See fig. 6.
Fig. 6 Pump placed on a plate
Ensure a minimum free cable length
of 9.8 ft (3 m) above the liquid level.
This limits the maximum installation
depth to 23 ft (7 m) for pumps with a
32.8 ft cable (10 m) and to 6.6 ft (2 m)
for pumps with a 16.4 ft (5 m) cable.
TM07 0344 4917
TM03 1122 1105
Max. 104 °F (40 °C)
Min. 32 °F (0 °C)
Max. 23 ft
(7 m)
Min. 9.84 ft
(3 m)
On
O
O
Min. 2 in.
(5 cm)
Max. Ø 0.39 in. (10 mm)
Off
B
H
With float switch
Pump
type
Height (H)
(top outlet
port)
[in. (mm)]
Height (H)
(side outlet
port)
[in. (mm)]
Width (B)
[in. (mm)]
CC 5
CC 7
20.5
(520)
13.8
(350)
15.7
(400)
CC 9 22.4
(570)
15.7
(400)
19.7
(500)
TM06 0696 0714
TM06 03 1123 1105

7
English (US)
4.2.5 Positioning the product
When the pipe or hose has been connected, place
the pump in its operating position.
Position the pump so that the inlet strainer will not be
blocked by sludge, mud or similar materials.
You can place the pump in three positions: vertical,
tilted or horizontal. The outlet port must always be
the highest point of the pump.
During operation, the inlet strainer must be
completely covered by the pumped liquid.
Fig. 7 Pump positions
4.2.6 Connecting the non-return valve
To prevent backflow through the pump when it stops,
fit the non-return valve supplied in the adapter. The
non-return valve is fixed when the adapter is fitted to
the pump top outlet port.
Fig. 8 Adapter position and non-return valve
function
4.2.7 Using the side outlet port
If you want to use the side outlet port, proceed as
follows:
1. Remove the non-return valve and adapter from
the top outlet port.
2. Remove the side plug and screw it on the top
outlet port.
3. Fit the 90 ° bend adapter in the side outlet port.
Use thread sealing tape or similar material.
4. Fit the non-return valve in the vertical part of the
90 ° bend.
5. Connect the outlet line directly to the outlet port.
Fig. 9 Correct position of a non-return valve
TM03 1111 1005
TM03 0833 0505 TM03 0834 0505
Position the non-return valve in the
vertical part of the 90 ° bend. If
positioned in the horizontal part of the
90 ° bend, the non-return valve may
not function correctly.
TM06 0696 0714

8
English (US)
4.2.8 Adjusting the cable length for a float switch
To make sure that the float switch can start and stop
the pump, the free cable length must be:
• at least 3.9 inches (100 mm)
• no more than 7.9 inches (200 mm).
Adjust the start and stop level by changing the free
cable length between the float switch and the lifting
handle.
• An increased free cable length results in fewer
starts and stops and a large difference in level.
• A reduced free cable length results in more
frequent starts and stops and a small difference
in level.
Fig. 10 Start and stop levels with a float switch,
refer to the table below for minimum and
maximum cable lengths
4.2.9 Lever arm start and stop levels
Fig. 11 Start and stop levels with a lever arm,
refer to the table below for start and stop
levels
4.3 Electrical connection
TM03 0829 4209
Unilift CC start and stop levels
Pump
type
Min. cable
length
(L)
3.9 in. (100 mm)
Max. cable
length
(L)
7.9 in. (200 mm)
Start
[in.
(mm)]
Stop
[in.
(mm)]
Start
[in.
(mm)]
Stop
[in.
(mm)]
CC 5 13.8
(350)
4.5
(115)
15.75
(400)
2.2
(55)
CC 7 13.8
(350)
4.5
(115)
15.75
(400)
2.2
(55)
CC 9 15.2
(385)
5.9
(150)
17
(435)
3.5
(90)
Start
Stop
L
TM03 0829 4209
Pump
type
Start and stop levels with a lever
arm
Start
[in. (mm)]
Stop
[in. (mm)]
CC 5 8.31 (211) 3.51 (89)
CC 7 8.31 (211) 3.51 (89)
CC 9 9.72 (247) 4.93 (125)
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before
starting any work on the product.
Make sure that the power supply
cannot be accidentally switched on.
DANGER
Electric shock
Death or serious personal injury
- Connect pumps without a plug
permanently to the fixed wiring via
an external main switch with a
minimum contact gap of 3 mm in all
poles.
DANGER
Electric shock
Death or serious personal injury
- Connect the product only to a
properly grounded receptacle.
- We recommend that you connect
the pump to an electrical circuit
with a Ground Fault Circuit
Interrupter (GFCI).
Start
Stop

9
English (US)
The pump must be grounded. The operating voltage
and frequency are marked on the nameplate. Make
sure that the motor is suitable for the power supply
on which it will be used.
• Make sure that it is possible to make a good
ground connection.
• Pumps with a plug:
– Connect the plug to the power outlet.
• Pumps without a plug:
– Connect the pump permanently to the fixed
wiring via an external main switch with a
minimum contact gap of 3 mm in all poles.
5. Starting up the product
5.1 Starting
Before starting the pump, check that the following
requirements are fulfilled:
• The pump is submerged in liquid. During normal
operation with a float switch in a stationery
installation, the inlet strainer of the pump must be
below the surface of the liquid.
• The pump is placed on a base so that the inlet
strainer is not blocked by sludge, mud or similar
materials.
• The pipe or hose connection is tight.
• The outlet pipe is open, that is, the pipe is not
blocked or bent,
• The pump is connected to the power supply in
accordance with the instructions.
• For pumps with a float switch, check that the float
switch will allow the pump to pump down to the
chosen level according to fig. 10. If you want to
pump below this level, hold the float switch in
vertical position.
Startup procedure
Switch on the pump and check the following:
• The pump is operating properly.
• Water is being pumped.
DANGER
Electric shock
Death or serious personal injury
- If the pump is used for cleaning or
other maintenance of swimming
pools, garden ponds or similar
places, make sure that the power
supply to the pump is routed
through a ground fault circuit
interrupter (GFCI) in accordance
with state, local governing codes
and regulations.
DANGER
Electric shock
Death or serious personal injury
- Pump installation in a sump pit,
basin or tank must be carried out
by qualified, specially trained
persons in accordance with the
National Electrical Code (USA), the
Canadian Electrical Code
(Canada), and any state, local
governing codes and regulations.
WARNING
Electric shock
Death or serious personal injury
- The protective ground of the pump
power plug must be connected to
the protective ground receptacle of
the power outlet.
- The plug must have the same
ground connection system as that
of the power outlet. If not, use a
suitable adapter.
Carry out the electrical connection
according to the National Electrical
Code (USA), the Canadian Electrical
Code (Canada), and any state, local
governing codes and regulations.
DANGER
Electric shock
Death or serious personal injury
- Do not use the pump in swimming
pools, garden ponds or similar
places if there are people in the
water.
WARNING
Moving parts
Death or serious personal injury
- Make sure that persons cannot
come into contact with moving
parts.
WARNING
Flammable material
Death or serious personal injury
- Do not use the pump for flammable
liquids, such as diesel oil, petrol or
similar liquids.

10
English (US)
5.2 Venting the product
The pump is self-venting. A vent valve is built into
the lifting handle. The valve allows air to escape from
the pump in case the free air flow through the outlet
pipe is blocked. Once the pump is vented, the valve
normally closes.
If the pump sucks air or water with a high air content,
the valve may leak a mixture of air and water. This is
not a fault but a natural consequence of the opening
and closing of the valve.
Fig. 12 Self-venting
5.3 Manual operation
Start and stop the pump via an external switch.
To eliminate the risk of dry running, check the water
level regularly during operation. This can for instance
be done by means of an external level controller.
In order for the pump to be able to self-prime when
started, the water level must be at least 1 inch (25
mm).
When the pump sucks water, it can pump down to
0.8 inch (20 mm) water level.
5.4 Automatic operation with float switch
During automatic operation, the pump starts and
stop, depending on the water level, the float switch
position and cable length.
5.4.1 Forced operation of a pump with a float
switch
If the pump is used to drain water below the stop
level of the float switch, the float switch can be kept
in a higher position by fixing it to the outlet pipe.
During forced operation, the water level must be
checked regularly to prevent dry running.
5.5 Pumping to a low water level
The pump can pump down to 0.12 inch (3 mm) when
the inlet strainer is removed.
These conditions must be fulfilled:
• The inlet strainer must be removed.
• The pump must be placed on an even, horizontal
surface.
• The water must not contain particles which may
block the pump inlet.
• The water level must be minimum 0.2 inch (5
mm) when the pump is started.
Fig. 13 Low water level
Removing the inlet strainer
To remove the inlet strainer, insert a screwdriver
between the pump housing and the inlet strainer and
turn it.
Fig. 14 Removal of the inlet strainer
5.6 Thermal protection
If the pump is running without water, or if it is
otherwise overloaded, the built-in thermal switch will
cut out.
When the motor has cooled to normal temperature, it
restarts automatically.
TM03 1121 1105
TM03 0832 0505TM03 0831 0505

11
English (US)
6. Product introduction
6.1 Product description
Grundfos Unilift CC 5, CC 7 and CC 9 pumps are
single-stage submersible pumps designed for
pumping rainwater and grey wastewater without
fibers. The pumps are self-venting and incorporate a
vent valve.
The pumps are designed for manual or automatic
operation.
The Unilift CC pumps are available with or without a
float switch. If supplied with a lever arm, the pump
can be installed in a narrow pit.
Pump with a float switch
With a float switch installed:
• the pump automatically starts and stops
according to the level of the pumped liquid
• the pump can pump to a low water level during
forced operation when the inlet strainer is
removed.
Pump without a float switch
Without a float switch:
• the pump requires manual external start and stop
• the pump can pump to a low water level when the
inlet strainer is removed.
Fig. 15 Pump with and without a float switch
TM03 1102 4209 TM03 1025 0714
Pos. Description
1 Adapter
2 Non-return valve
3 Lifting handle
4 Top outlet port
5
Side outlet port and plug
The side outlet port is plugged from
factory.
6 Inlet strainer
7Clamp
8 Float switch
1
2
3
4
5
6
8
7
1
2
3
4
5
6

12
English (US)
6.2 Applications
The product can be installed in a permanent
installation or used as a portable pump.
Unilift CC 5 is for indoor use only. Unilift CC 7 and
CC 9 are suitable for both indoor and outdoor use.
Incorrect use of the product, for example resulting in
blockage or wear of the pump, will void the pump's
warranty. Note that the pump is not suitable for these
liquids:
•sewage
• liquids containing long fibers
• flammable liquids (oil, gasoline, etc.)
• aggressive liquids
• liquids containing particles exceeding the pump's
Check the regional or local EX-approval
requirements for surface water at gas stations and in
parking areas.
Note: Unilift CC does not have any explosion-proof
approval. See the Grundfos SL range.
DANGER
Electric shock
Death or serious personal injury
- Do not use the pumps in or at
swimming pools, garden ponds,
etc. when there are persons in the
water.
If the pump has been used for very
dirty or chlorinated water, flush the
pump thoroughly with clean water
after use.
Wear gloves and other suitable
personal protective equipment in
accordance with local regulations.
Observe local regulations on any
exposure to wastewater.
The product is not designed for
pumping stones and similar materials
Applications CC 5 CC 7 CC 9
Drainage of basements or buildings prone to flooding. ●●●
Pumping of wastewater from washing machines, sinks, baths,
showers, etc., up to the sewer level. ●●●
Dewatering of sites or pumping of water for fountains. ●●●
Pumping in draining wells. ●●●
Emptying of swimming pools, ponds, tanks, or fountains. ●●●

13
English (US)
6.3 Identification
6.3.1 Nameplate
Fig. 16 Example of the nameplate
7. Servicing the product
7.1 Maintaining the product
Under normal operating conditions, the pump is
maintenance-free.
If the pump has been used for liquids other than
clean water, it must be flushed through with clean
water immediately after use. See section
7.2 Cleaning the pump.
TM07 0527 0218
Pos. Description
1 Pump type
2 Frequency
3 Maximum head
4Maximum liquid temperature during
continuous operation
5 Product number
6 Production code
7 Full-load current
8 Maximum flow rate
9 Motor insulation class
10 Enclosure class
11 Approvals
12 Motor input power
13 Maximum installation depth
14 Supply voltage
XXXXXX
1
5
12
13
9
14 68 2
7
11
3 410
SN
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before
starting any work on the product.
Make sure that the power supply
cannot be accidentally switched on.
DANGER
Electric shock
Death or serious personal injury
- If the power cable is damaged, it
must be replaced by the
manufacturer, his service agent or
similarly qualified persons in order
to avoid hazard.
CAUTION
Biological hazard
Minor or moderate personal injury
- Before carrying out maintenance
and service, flush the pump
thoroughly with clean water.
- After dismantling the pump, rinse
the pump parts in clean water.
CAUTION
Sharp element
Minor or moderate personal injury
- Wear protective gloves.
- Never touch the inside of the pump
while the pump is running
CAUTION
Biological hazard
Minor or moderate personal injury
- If a pump has been used for a
liquid which is injurious to health or
toxic, the pump will be classified as
contaminated.
Service must be performed by trained
service persons. Furthermore, all
rules and regulations covering safety,
health and environment must be
observed.

14
English (US)
7.2 Cleaning the pump
If the pump does not deliver a sufficient quantity of
water because of sediment, dismantle and clean the
pump.
7.2.1 Cleaning the inlet strainer
1. Disconnect the power supply to the pump.
2. Drain the pump.
3. Loosen the inlet strainer by inserting a
screwdriver in the recess between the pump
housing and the strainer.
4. Use the screwdriver to push apart the outer
housing and the strainer. Repeat the procedure,
working around the pump, until the strainer is
free and can be removed.
5. Clean and refit the inlet strainer.
Cleaning the impeller
1. Disconnect the power supply to the pump.
2. Drain the pump.
3. Loosen the inlet strainer by inserting a
screwdriver in the recess between the pump
housing and the strainer,
4. Use the screwdriver to push apart the outer
housing and the strainer. Repeat the procedure,
working around the pump, until the strainer is
free and can be removed.
5. Remove the strainer and the bottom part of the
pump housing as shown in fig. 17.
Fig. 17 Removal of the strainer and the bottom
part of the pump housing
6. Remove and clean the diaphragm.
7. Clean and flush the pump with clean water to
remove possible impurities between the motor
and the pump housing. Clean the impeller.
8. Check that the impeller can rotate freely.
9. Assemble the pump in reverse order of
dismantling.
7.3 Service kits
The impeller assembly and power cable can be
replaced. The part numbers and the components
included in the service kits are found in Grundfos
Product Center at www.grundfos.us. Alternatively,
contact your local Grundfos dealer or service center.
7.4 Contaminated pumps
Any application for service, no matter to whom it may
be made, must include details about the pumped
liquid.
The product will be classified as contaminated if it
has been used for a liquid which is injurious to health
or toxic.
If you request Grundfos to service the product,
contact Grundfos with details about the pumped
liquid before returning the product for service.
Otherwise Grundfos can refuse to accept the product
for service.
Any application for service must include details
about the pumped liquid.
Clean the product in the best possible way before
you return it.
Costs of returning the product are to be paid by the
customer.
TM03 1112 1005
The cable and the float switch must
be replaced by a service workshop
authorized by Grundfos.
CAUTION
Biological hazard
Minor or moderate personal injury
- Flush the pump thoroughly with
clean water and rinse the pump
parts in water after dismantling.

15
English (US)
8. Fault finding the product
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before
starting any work on the product.
Make sure that the power supply
cannot be accidentally switched on.
Fault Cause Remedy
1. The motor does
not start.
a) No power supply. Connect the power supply.
b) The fuses are blown. Replace the fuses.
c) The motor protection or thermal
relay has tripped. See section
5.6 Thermal protection. See also
point 2.
Wait until the motor protection trips in
again or reset the relay.
d) The impeller is blocked by
impurities.
Clean the impeller.
See section 7.2 Cleaning the pump.
e) There is a short circuit in the
cable or motor. Replace the defective part.
2. The motor
protection or
thermal relay
trips after a
short time of
operation.
a) The temperature of the pumped
liquid is too high.
Contact your Grundfos
representative.
b) The impeller is blocked or partly
blocked by impurities.
Clean the pump. See section
7.2 Cleaning the pump.
c) The water level is too low when
the pump is started. The pump
cannot self-prime. See section
9. Technical data.
Move the pump to a position with
higher water level, or add water until
the pump starts sucking.
3. The pump runs
constantly, but
does not deliver
the rated flow.
a) The pump is partly blocked by
impurities.
Clean the pump. See section
7.2 Cleaning the pump.
b) The outlet pipe or hose is partly
blocked by impurities.
Clean the outlet pipe or hose. Clean
the non-return valve, if fitted.
Straighten out the hose or pipe, if
bent.
4. The pump runs
but gives no
water.
a) The pump is blocked by
impurities.
Clean the pump. See section
7.2 Cleaning the pump.
b) The pipe or hose is blocked by
impurities.
Clean the outlet pipe or hose.
Clean or replace the non-return
valve, if necessary.
Straighten out the outlet pipe or
hose, if bent.
c) Pumps with a float switch: The
pump does not stop because the
free cable length of the float
switch is too long.
Reduce the free cable length of the
float switch cable. See section
4.2.8 Adjusting the cable length for a
float switch

16
English (US)
9. Technical data
9.1 Operating conditions
9.1.1 Flow rate
9.1.2 Temperatures
Thermal protection
9.1.3 Pumped liquid requirements
9.1.4 Inlet level and installation depth
9.2 Electrical data
9.2.1 Power supply
9.2.2 Insulation class
9.2.3 Capacitors
Pump type Max. head
[ft (m)]
Max. flow rate
[gpm (m3/h)]
CC 5 16 (5) 26.7 (6)
CC 7 22 (7) 38.3 (10)
CC 9 29 (9) 58.3 (14)
Using the horizontal outlet may cause
a 5 % drop in performance.
Maximum ambient
temperature 104 °F (40 °C)
Liquid temperature 32 to 104 °F (0 to 40 °C)
Operating
temperature 32 to 104 °F (0 to 40 °C)
Storage
temperature
14 to 122 °F
(-10 to +50 °C)
Pump type Winding temperature cut-out
CC 5 320 °F (160 °C)
CC 7 320 °F (160 °C)
CC 9 284 °F (140 °C)
At intervals of at least 30 minutes, the
pump is allowed to run at maximum
158 °F (70 °C) for periods not
exceeding two minutes.
Do not use the thermal protection to
control pump operation. If the pump is
to be installed permanently in
conditions with varying water level,
install a pump with a float switch.
Pumped liquid Rainwater and grey
wastewater without long fibers
pH range 4-9 pH
Maximum
particle size ∅0.40 inch (10 mm)
Viscosity
Close to the viscosity of water
or 1 cSt (1 mm2/s) at 68 °F
(20 °C).
Pump
type
Min. inlet level
with inlet
strainer
[in. (mm)]
Min. inlet level
without inlet
strainer
[in. (mm)]
CC 5 0.79 (20) 0.12 (3)
CC 7 0.79 (20) 0.12 (3)
CC 9 0.79 (20) 0.12 (3)
Pump
type
Max. installation depth
[ft (m)]
Cable length
[ft (m)]
CC 5
CC 7
CC 9
23 (7) 32.8 (10)
Pump type Supply voltage [V]
CC 5
CC 7
CC 9
1 x 115 V, 60 Hz
1 x 230 V, 60 hz
60 Hz CC 5 CC 7 CC 9
Voltage [V] 115 230 115 230 115 230
Current, I 1/1 [A] 2.6 1.2 3.4 1.6 6.7 3.1
Power, P1 [W] 270 270 370 370 730 730
Power factor,
cos φ1/1 0.95 0.97 0.95 0.98 0.92 0.95
Pump type Cable type Insulation
class
CC 5, 230 V H05RN-F 3G0.75 F
CC 7, 230 V H07RN-F 3G1 F
CC 9, 230 V H07RN-F 3G1 B
CC 5, 115 V
CC 7, 115 V
CC 9, 115 V
H07RN-F 3G1 B
Pump type
Capacitor
[μF] [Vc]
CC 5 4 450
CC 7 8 450
CC 9 8 450

17
English (US)
9.3 Mechanical data
9.4 Dimensions and weights
See the appendix.
10. Disposing of the product
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
See also end-of-life information at
www.grundfos.com/product-recycling.
Maximum dry-running time 1 minute
Airborne noise emitted by pump ≤70 dB(A)
Enclosure class IP68

18
Appendix
Appendix 1
Dimensions and weights
Pump type Weight
[lb (kg)]
Dimensions [in. (mm)]
Pump height Pump width Pump diameter
Unilift CC 5 9.5 (4.3) 12.07 (307) 7.29 (185) ∅6.30 (160)
Unilift CC 7 12.8 (5.8) 12.07 (307) 7.29 (185) ∅6.30 (160)
Unilift CC 9 14.5 (6.6) 13.50 (342) 7.29 (185) ∅6.30 (160)
Unilift CC 5 and CC 7 Unilift CC 9
TM07 0538 0218 TM07 0537 0218
12.07 in. (307 mm)
∅6.30 in.
(160 mm)
3.6 in. (90 mm)
7.29 in. (185 mm)
7.29 in. (185 mm)
∅6.30 in.
(160 mm)
3.6 in. (90 mm)
13.5 in. (342 mm)

Grundfos companies
GRUNDFOS Kansas City
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: [phone]
Fax: [phone]
www.grundfos.us
GRUNDFOS Canada
2941 Brighton Road
Oakville, Ontario L6H 6C9 Canada
Phone: [phone]
Telefax: [phone]
www.grundfos.ca
GRUNDFOS México
Boulevard TLC No. 15
Parque Industrial Stiva Aeropuerto
C.P. 66600 Apodaca, N.L. México
Phone: [phone]
Fax: [phone]
www.grundfos.mx

96898407 0318
ECM: 1223391
www.grundfos.com
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