Grundfos SEG Series User manual

SEG
0.9 - 4.0 kW ~ 50 Hz
Safety instructions and other important information
GRUNDFOS INSTRUCTIONS
Installation and operating instructions
SEG
http://net.grundfos.com/qr/i/96076046

English (GB)
2
English (GB) Safety instructions and other important information
General information
These safety instructions give a quick overview of
the safety precautions to be taken in connection with
any work on this product.
Observe these safety instructions during handling,
installation, operation, maintenance, service and
repair of this product.
These safety instructions is a supplementary
document, and all safety instructions will appear
again in the relevant sections of the installation and
operating instructions.
Keep these safety instructions at the installation site
for future reference.
The Ex symbol refers to ATEX-approved and
IECEx-approved products.
Operating conditions
The Grundfos SEG pumps are designed for
intermittent operation (S3). When completely
submerged in the pumped liquid, the pumps can also
operate continuously (S1).
Installation depth
Maximum 10 m below liquid level.
Operating pressure
Maximum 6 bar.
Number of starts per hour
Maximum 30.
pH value
Pumps in permanent installations can be used for
pumping liquids with pH values between 4 and 10.
Read this document
before installing the
product. Installation and
operation must comply
with local regulations
and accepted codes of
good practice.
This appliance can be
used by children aged
from 8 years and above
and persons with
reduced physical,
sensory or mental
capabilities or lack of
experience and
knowledge if they have
been given supervision
or instruction concerning
use of the appliance in a
safe way and
understand the hazards
involved.
Children shall not play
with the appliance.
Cleaning and user
maintenance shall not
be made by children
without supervision.
Observe these instructions for
explosion-proof products.

English (GB)
3
Liquid temperature
0-40 °C.
For short periods (maximum 15 minutes), a
temperature of up to 60 °C is permissible (non-Ex
versions only).
Density and viscosity of pumped liquid
When pumping liquids with a density and/or a
kinematic viscosity higher than that of water, use
motors with correspondingly higher outputs.
Sound pressure level
The sound pressure level of the pumps is lower than
the limiting values stated in the EC Council Directive
2006/42/EC relating to machinery.
Electrical data
Supply voltage
• 1 x 230 V - 10 %/+ 6 %, 50 Hz.
• 3 x 230 V - 10 %/+ 6 %, 50 Hz.
• 3 x 400 V - 10 %/+ 6 %, 50 Hz.
Enclosure class
IP68, according to IEC 60529.
Insulation class
F (155 °C).
Frequency converter operation
For frequency converter operation please observe
the following information.
Requirements must be fulfilled.
Recommendations ought to be followed.
Consequences must be considered.
Requirements
• The thermal protection of the motor must be
connected.
• Peak voltage and dU/dt must be in accordance
with the table below. The values stated are
maximum values supplied to motor terminals.
The cable influence has not been taken into
account. See data sheet for the frequency
converter used regarding the actual values and
cable influence on the peak voltage and dU/dt.
• If the pump is an Ex-approved pump, check if the
Ex certificate of the specific pump allows the use
of a frequency converter.
• Set the frequency converter U/f ratio according to
the motor data.
• Local regulations and standards must be fulfilled.
Recommendations
Before installing a frequency converter, calculate the
lowest allowable frequency in the installation in order
to avoid zero flow.
• Do not reduce the motor speed to less than 30 %
of rated speed.
• Keep the flow velocity above 1 m/sec.
• Let the pump run at rated speed at least once a
day in order to prevent sedimentation in the pipe
system.
• Do not exceed the frequency indicated on the
nameplate. In this case there is risk of motor
overload.
• Keep the power cable as short as possible. The
peak voltage will increase with the length of the
power cable. See data sheet for the frequency
converter used.
• Use input and output filters on the frequency
converter. See data sheet for the frequency
converter used.
• Use a screened power cable if there is a risk that
electrical noise can disturb other electrical
equipment. See data sheet for the frequency
converter used.
Consequences
When operating the pump via a frequency converter,
please be aware of these possible consequences:
• The locked-rotor torque will be lower. How much
lower will depend on the frequency converter
type. See the installation and operating
instructions for the frequency converter used for
information on the locked-rotor torque available.
• The working condition of bearings and shaft seal
may be affected. The possible effect will depend
on the application. The actual effect cannot be
predicted.
• The acoustic noise level may increase. See the
installation and operating instructions for the
frequency converter used for advice as to how to
reduce the acoustic noise.
Explosion-proof pumps must never pump
liquids at a temperature higher than 40 °C.
Frequency converter
operation will influence
the efficiency of the
grinder system.
Max. repetitive peak
voltage
[V]
Max. dU/dt
UN400 V
[V/μsec.]
650 2000

English (GB)
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Transporting the product
Installing the product
WARNING
Crushing hazard
Death or serious
personal injury
- Do not stack pump
packages or pallets on
top of each other when
lifting or moving them.
- Always lift the pump by
its lifting bracket or by
means of a forklift truck
if the pump is fixed on
a pallet. Never lift the
pump by means of the
power cable or the
hose or pipe.
CAUTION
Sharp element
Minor or moderate
personal injury
- Make sure not to cut
your hands on the
sharp edges when
opening the pump
package.
Pump installation in pits
must be carried out by
specially trained
persons.
Work in or near pits must
be carried out according
to local regulations.
Persons must not enter the installation
area when the atmosphere is explosive.
DANGER
Electric shock
Death or serious
personal injury
- It must be possible to
lock the main switch in
position 0. Type and
requirements as
specified in EN
60204-1, 5.3.2.
DANGER
Electric shock
Death or serious
personal injury
- Make sure there are at
least 3 m free cable
above the maximum
liquid level.
DANGER
Crushing hazard
Death or serious
personal injury
- Make sure that the
lifting bracket is
tightened before
attempting to lift the
pump. Tighten if
necessary.

English (GB)
5
Mechanical installation
DANGER
Electric shock
Death or serious
personal injury
- Switch off the power
supply and lock the
main switch in position
0.
- Switch off any external
voltage connected to
the product before
working on it.
CAUTION
Hot surface
Minor or moderate
personal injury
- Make sure that the
pump has cooled down
before touching it.
DANGER
Electric shock
Death or serious
personal injury
- Before installing the
pump and starting it up
for the first time, check
the power cable for
visible defects to avoid
short circuits.
CAUTION
Biological hazard
Minor or moderate
personal injury
- Flush the pump
thoroughly with clean
water and rinse the
pump parts in water
after dismantling.
Pits for submersible
sewage and
wastewater pumps
may contain sewage or
wastewater with toxic
and/or disease-causing
substances.
- Wear appropriate
personal protective
equipment and
clothing.
- Observe the local
hygiene regulations in
force.

English (GB)
6
Lifting the product
CAUTION
Crushing of hands
Minor or moderate
personal injury
- Do not put your hands
or any tool into the
pump inlet or outlet
port after the pump has
been connected to the
power supply, unless
the pump has been
switched off by
removing the fuses or
switching off the main
switch.
- Make sure that the
power supply cannot
be accidentally
switched on.
CAUTION
Sharp element
Minor or moderate
personal injury
- Do not touch the sharp
edges of the impeller,
grinder head, and
grinder ring without
wearing gloves.
CAUTION
Biological hazard
Minor or moderate
personal injury
- Make sure to seal the
pump outlet properly
when fitting the outlet
pipe, otherwise water
might spray out of the
sealing.
WARNING
Crushing of hands
Death or serious
personal injury
- When lifting the pump,
make sure your hand is
not caught between the
lifting bracket and the
hook.

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Installation on auto coupling
Electrical connection
WARNING
Crushing hazard
Death or serious
personal injury
- Make sure that the
hook is fixed properly
to the lifting bracket.
- Always lift the pump by
its lifting bracket or by
means of a forklift truck
if the pump is fixed on
a pallet.
- Never lift the pump by
means of the power
cable, hose or pipe.
- Make sure that the
lifting bracket is
tightened before
attempting to lift the
pump. Tighten if
necessary.
Before beginning installation procedures,
make sure that the atmosphere in the pit is
not potentially explosive.
Do not use elastic
elements or bellows in
the pipes. Never use
these elements as a
means to align the
pipes.
DANGER
Electric shock
Death or serious
personal injury
- Connect the pump to
an external main
switch which ensures
all-pole disconnection
with a contact
separation according
to EN 60204-1, 5.3.2.
- It must be possible to
lock the main switch in
position 0. Type and
requirements as
specified in EN
60204-1, 5.3.2.
Pumps to be installed in
potentially explosive
locations must be
connected to a control
box with a motor
protection relay with IEC
trip class 10.
The permanent
installation must be fitted
with an earth-leakage
circuit breaker.

English (GB)
8
Starting up the product
Do not install Grundfos control boxes,
pump controllers, Ex barriers and the free
end of the power cable in potentially
explosive environments.
The classification of the installation site
must be approved according to local rules
in each individual case.
On explosion-proof pumps, make sure that
an external earth conductor is connected
to the external earth terminal of the pump
using a conductor with a secure cable
clamp. Clean the surface of the external
earth connection and fit the cable clamp.
The cross-section of the earth conductor
must be at least 4 mm2, e.g. type H07
V2-K (PVT 90 °) yellow and green.
Make sure that the earth connection is
protected against corrosion.
Make sure that all protective equipment
has been connected correctly.
Float switches used in potentially
explosive environments must be approved
for this application. They must be
connected to the Grundfos LC, LCD 108
pump controller via the intrinsically safe
LC-Ex4 barrier to ensure a safe circuit.
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 a
similarly qualified
person.
DANGER
Electric shock
Death or serious
personal injury
- Before the first startup
of the pump, check the
power cable for visible
defects to avoid short
circuits.
A possible replacement
of the power cable must
be carried out by
Grundfos or a service
workshop authorised by
Grundfos.
CAUTION
Crushing of hands
Minor or moderate
personal injury
- Do not put your hands
or any tool into the
pump inlet or outlet
port after the pump has
been connected to the
power supply, unless
the pump has been
switched off by
removing the fuses or
switching off the main
switch.
- Make sure that the
power supply cannot
be accidentally
switched on.
CAUTION
Biological hazard
Minor or moderate
personal injury
- Make sure to seal the
pump outlet properly
when fitting the outlet
pipe, otherwise water
might spray out of the
sealing.

English (GB)
9
WARNING
Crushing of hands
Death or serious
personal injury
- When lifting the pump,
make sure your hand is
not caught between the
lifting bracket and the
hook.
DANGER
Crushing hazard
Death or serious
personal injury
- Make sure that the
hook is fixed properly
to the lifting bracket.
- Always lift the pump by
its lifting bracket or by
means of a forklift truck
if the pump is fixed on
a pallet.
- Never lift the pump by
means of the power
cable, hose or pipe.
- Make sure that the
lifting bracket is
tightened before
attempting to lift the
pump. Tighten if
necessary.
DANGER
Electric shock
Death or serious
personal injury
- Before starting up the
product for the first
time, check the power
cable for visible
defects to avoid short
circuits.
- If the power cable is
damaged, it must be
replaced by the
manufacturer, his
service agent or a
similarly qualified
person.
- Make sure that the
product is earthed
properly.
- Switch off the power
supply and lock the
main switch in position
0.
- Switch off any external
voltage connected to
the product before
working on it.

English (GB)
10
Start and stop levels
Startup
Potentially explosive environments
CAUTION
Biological hazard
Minor or moderate
personal injury
- Flush the pump
thoroughly with clean
water and rinse the
pump parts in water
after dismantling.
Pits for submersible
sewage and
wastewater pumps
may contain sewage or
wastewater with toxic
and/or disease-causing
substances.
- Wear appropriate
personal protective
equipment and
clothing.
- Observe the local
hygiene regulations in
force.
CAUTION
Hot surface
Minor or moderate
personal injury
- Do not touch the
surface of the pump
while the pump is
running.
Do not open the clamp
while the pump is
running.
CU 100 must not be used for Ex
applications.
The pump must not run
dry.
If the atmosphere in the pit is potentially
explosive, use only pumps with Ex
approval.
The pumps must under no circumstances
pump combustible or flammable liquids.
The classification of the installation site
must be approved according to local rules
in each individual case.