Grundfos SE1 50 User manual

SE1 50, 80, 100-SEV 65, 80, 100
all languages
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

SE1 50, 80, 100-SEV 65, 80, 100
English (GB)
Installation and operating instructions ..................................5
Български (BG)
Упътване за монтаж и експлоатация.................................42
Čeština (CZ)
Montážní a provozní návod ........................................85
Deutsch (DE)
Montage- und Betriebsanleitung ....................................123
Dansk (DK)
Monterings- og driftsinstruktion .....................................166
Eesti (EE)
Paigaldus- ja kasutusjuhend.......................................203
Español (ES)
Instrucciones de instalación y funcionamiento...........................241
Suomi (FI)
Asennus- ja käyttöohjeet .........................................284
Français (FR)
Notice d'installation et de fonctionnement..............................323
Ελληνικά (GR)
Οδηγίες εγκατάστασης και λειτουργίας................................363
Hrvatski (HR)
Montažne i pogonske upute .......................................406
Magyar (HU)
Telepítési és üzemeltetési utasítás ..................................444
Italiano (IT)
Istruzioni di installazione e funzionamento .............................485
Lietuviškai (LT)
Įrengimo ir naudojimo instrukcija ....................................526
Latviešu (LV)
Uzstādīšanas un ekspluatācijas instrukcija .............................564
Nederlands (NL)
Installatie- en bedieningsinstructies ..................................602
Polski (PL)
Instrukcja montażu i eksploatacji....................................642
3
Table of contents

Português (PT)
Instruções de instalação e funcionamento .............................684
Română (RO)
Instrucţiuni de instalare şi utilizare...................................727
Srpski (RS)
Uputstvo za instalaciju i rad .......................................768
Русский (RU)
Паспорт, Руководство по монтажу и эксплуатации......................806
Svenska (SE)
Monterings- och driftsinstruktion ....................................849
Slovensko (SI)
Navodila za montažo in obratovanje .................................887
Slovenčina (SK)
Návod na montáž a prevádzku .....................................926
Türkçe (TR)
Montaj ve kullanım kılavuzu .......................................966
Українська (UA)
Інструкції з монтажу та експлуатації ...............................1005
中文 (CN)
安装和使用说明书 .............................................1048
Norsk (NO)
Installasjons- og driftsinstruksjoner .................................1082
(AR) ةيبرعلا
    ............................................1119
繁體中文 (TW)
安裝操作手冊 ................................................1153
Tiếng Việt (VI)
Hướng dẫn lắp đặt và vận hành ...................................1187
4SE1 50, 80, 100-SEV 65, 80, 100
Table of contents

English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. General information ............. 5
1.1 General information.............. 5
1.2 Hazard statements .............. 5
1.3 Notes ..................... 6
2. Product introduction ............ 6
2.1 Product description .............. 6
2.2 Intended use ................. 7
2.3 Pumped liquids ................ 7
2.4 Identification.................. 7
2.5 Approvals ................... 8
2.6 Potentially explosive environments......10
3. Transporting the product ..........11
3.1 Handling the product .............11
3.2 Lifting the product ...............11
4. Installation requirements ..........12
5. Mechanical installation ...........12
5.1 Mounting the product .............13
6. Electrical connection ............16
6.1 Frequency converter operation ........18
7. Protection and control functions .....19
7.1 Pump controllers ...............19
7.2 Switches and sensors ............21
7.3 Wiring diagrams................23
8. Starting up the product ...........27
8.1 Operating mode................28
8.2 Start and stop levels .............28
8.3 Checking the direction of rotation ......29
8.4 Startup.....................29
9. Storing the product .............31
9.1 Storing the product ..............31
10. Servicing the product ............31
10.1 Maintenance schedule ............32
10.2 Checking and changing the oil ........33
10.3 Cleaning and inspecting the pump ......34
10.4 Repairing the product .............34
10.5 Spare parts ..................37
10.6 Contaminated pumps .............37
11. Fault finding the product ..........38
11.1 The motor does not start. The fuses blow
or the motor-protective circuit breaker
trips immediately.Caution:Do not start
again! .....................38
11.2 The pump operates, but the motor-
protective circuit breaker trips after a
short while. ..................38
11.3 The thermal switch of the pump trips after
a short while. .................38
11.4 The pump operates at below-standard
performance and power consumption. ....39
11.5 The pump operates, but gives no liquid. . ..39
11.6 The power consumption is high (SEV). . ..39
11.7 Noisy operation and excessive vibrations
(SE1). .....................39
11.8 The pump is clogged. .............39
12. Technical data ................40
12.1 Operating conditions .............40
12.2 Dimensions and weights ...........40
12.3 Storage temperature .............40
12.4 Electrical data .................40
13. Disposing of the product ..........41
1. General information
1.1 General information
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 super-
vision 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.
Read this document before you install the
product. Installation and operation must
comply with local regulations and accepted
codes of good practice.
1.2 Hazard statements
The symbols and hazard statements below may
appear in Grundfos installation and operating
instructions, safety instructions and service
instructions.
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
personal injury.
5
English (GB)

WARNING
Indicates a hazardous situation which, if
not avoided, could result in death or seri-
ous personal injury.
CAUTION
Indicates a hazardous situation which, if
not avoided, could result in minor or mod-
erate personal injury.
The hazard statements are structured in the following
way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
1.3 Notes
The symbols and notes below may appear in
Grundfos installation and operating instructions,
safety instructions and service instructions.
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, in-
dicates 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.
2. Product introduction
2.1 Product description
5
6
1
2
3
4
7
9
10
8
TM065987
SE pump
Pos. Description
1 Lifting bracket
2 Nameplate
3 Sleeve
4 Oil screw
5 Outlet flange
6 Outlet opening
7 Cable plug
8 Top cover
9 Clamp
10 Pump housing
6
English (GB)

2.2 Intended use
The SE1 and SEV pumps are designed for
transferring wastewater, process water and
unscreened raw sewage in heavy-duty municipal,
utility and industrial applications.
The pumps are available with S-tube® or SuperVortex
impellers allowing the free passage of solids up to
100 mm.
The pumps can be used in permanent, dry- or
submerged installations on auto-coupling systems.
The pumps are also suitable for free-standing
installations or as portable pumps.
2.3 Pumped liquids
The standard cast iron versions are designed for
pumping the following liquids:
• large quantities of drainage, surface and storm
water
• domestic wastewater with discharge from toilets
• wastewater with a high content of fibres
(SuperVortex impeller)
• industrial process water
• wastewater with gaseous sludge
• municipal and commercial sewage and
wastewater.
Stainless steel versions
The stainless steel versions are suitable for pumping
the following liquids:
• industrial process water containing chemicals
• aggressive or corrosive drain water and effluent
• wastewater containing abrasives
• seawater contaminated with wastewater.
2.4 Identification
2.4.1 Nameplate
Fix the extra nameplate supplied with the pump at the
installation site or keep it in the cover of this booklet.
12 1311 19 6
2
1
3
4
5
7
8
9
10
18
17
16
15
20
21
22
23
24
25
14
Tmax: °C
Type: P.c.
Hmax: Qmax: m
VA
A
m h
/
3
V
Model:
mInsul.class: Cosφ :
Motor: Hz
0197
~
n: min-1
kgWeight: IP68P1/P2： / kW
U.K Importer: Grundfos Pumps ltd
Grovebury Road Leighton Buzzard
Bedfordshire LU74TL DK-8850 Bjerringbro, Denmark
98948763 99657185Made in Tatabánya Hungary
For Converter Operation,
see manual
TM028398
Nameplate
Pos. Description
1Notified body and explosion protection
classification
2 Explosion protection mark
3 Type designation
4 Product number
5 Maximum head [m]
6 Enclosure class
7 Maximum installation depth [m]
8 Number of phases
9 Frequency [Hz]
10 Speed [min-1]
11 Motor input power P1 [kW]
12 Motor output power P2 [kW]
13 Country of production
14 Explosion protection certificate number
15 Standard for wastewater lifting stations for
buildings and installation sites
16 Maximum flow rate [m3/h]
17 Production code (year/week)
18 Maximum liquid temperature [°C]
19 Insulation class
20 Power factor
21 Rated current [A], delta connection
22 Rated voltage [V], delta connection
23 Rated current [A], star connection
24 Rated voltage [V], star connection
25 Net weight [kg]
7
English (GB)

2.4.2 Type key
Example: SE1.80.80.40.A.Ex.4.51D.B
Code Explanation Designation
SE Sewage and wastewater
pump Pump type
1S-tube® impeller Impeller type
V SuperVortex impeller
80 Maximum solids size [mm] Pump passage
80 Nominal diameter [mm] Pump outlet
40 Output power P2/10 Power [kW]
[ ] Standard (without sensor) Sensor version
A Sensor version
[ ] Non-explosion-proof pump
(standard) Pump version
Ex Explosion-proof pump
2 2-pole Number of
poles
4 4-pole
50 50 Hz Frequency
[Hz]1
0B 400-415 V, DOL
Voltage and
starting method
0D 380-415 V, DOL
1D 380-415 V, Y/D
0E 220-240 V, DOL
1E 220-240 V, Y/D
[ ] First generation Generation2
B Second generation
Code Explanation Designation
[ ] Cast iron impeller, pump
housing and top cover
Pump materials
Q
Stainless steel impeller,
cast iron pump housing
and top cover
REntire pump of stainless
steel
S
Stainless steel pump hous-
ing, impeller and intermedi-
ate flange and cast iron top
cover (on request)
D Stainless steel
Z Custom-built products Customisation
1 Maximum frequency in case of frequency-converter
operation.
2 The generation code distinguishes between pumps
of different design, but with the same power rating.
2.5 Approvals
SE1 and SEV pumps have been tested by Dekra /
KEMA. The explosion-proof version hold two
examination certificates:
• ATEX(EU): KEMA 04ATEX2201X
• IECEx: IECEx DEK 21.0017X.
Both certificates have been issued by Dekra. The
standard versions of SE1 and SEV pumps are tested
by VDE.
2.5.1 Approval standards
The standard variants are approved by TÜV
Rheinland (LGA) notified body under the Construction
Products Directive according to EN 12050-1 or EN
12050-2 as specified on the nameplate.
2.5.2 Explanation of the Ex approval
The SE1 and SEV pumps have the following
explosion protection classifications:
•CE 0344 II 2 GD Ex db eb h mb IIB T4, T3 Gb;
Ex h mb tb IIIC T135 °C, T200 °C Db.
8
English (GB)

Directive or
standard Code Description
ATEX
CE 0344 = CE marking of conformity according to the ATEX directive 2014/34/EU. 0344 is
the number of the notified body which has certified the quality system for ATEX.
= The equipment conforms to harmonised European standard.
II = Equipment group according to the ATEX directive, defining the requirements
applicable to the equipment in this group
2 = Equipment category according to the ATEX directive, defining the requirements
applicable to the equipment in this category
G = Explosive atmosphere caused by gases, vapours or mists
D = Explosive atmosphere caused by dust
Harmonised
European
standard
Ex = Marking of explosion protection
h = Constructional safety (c) and Liquid immersion (k) according to EN ISO
80079-36 and EN ISO 80079-37
db = Flameproof enclosure according to EN 60079-1
eb = Protection according to EN 60079-7
mb = Encapsulation according to EN 60079-18
IIB = Classification of gases, see EN 60079-0. Gas group B includes gas group A.
T4/T3 = Maximum surface temperature is 135 °C (T4) in direct-drive pumps and 200 °C
(T3) in pumps operated by frequency converter, according to EN 60079-0*
Gb = Suitable for use in explosive gas atmospheres in zone 1 and zone 2
tb = Protection by enclosure EN 60079-31
IIIC = Conductive dust
T135 °C /
T200 °C = Maximum surface temperature
Db = Suitable for use in explosive dust atmospheres in zone 1 and zone 2
*For motors connected to a frequency converter, the
maximum surface temperature T3 is 200 °C.
2.5.3 Australia
Explosion-proof variants for Australia are approved as
Ex nA II T3 according to IEC 60079-15
(corresponding to AS 2380.9).
Standard Code Description
IEC 60079-15:1987
Ex = Area classification according to AS 2430.1
nA = Non-sparking according to AS 2380.9:1991, section 3
(IEC 79-15:1987)
II = Suitable for use in explosive atmospheres (not mines)
T3 = Maximum surface temperature is 200 °C
XThe letter X in the certificate number indicates that the
equipment is subject to special conditions for safe use.
9
English (GB)

2.6 Potentially explosive environments
Use explosion-proof pumps for applications in
potentially explosive environments.
SE1 and SEV pumps must under no cir-
cumstances pump combustible liquids.
The classification of the installation site
must be defined by the owner.
Special conditions for safe use of explo-
sion-proof pumps:
1. Make sure the moisture switch and
thermal switches are connected in the
same circuit, but have separate alarm
outputs (motor stop) in case of high hu-
midity or high temperature in the motor.
2. Bolts used for replacement must be
class A2-70 or better according to
EN/ISO 3506-1.
3. Contact the manufacturer for informa-
tion on the dimensions of the flame-
proof joints.
4. The level of the pumped liquid must be
controlled by level switches connected
to the motor control circuit. The mini-
mum level depends on the installation
type and is specified in these installa-
tion and operating instructions.
5. Make sure the permanently attached
cable is suitably mechanically protec-
ted and terminated in a suitable termi-
nal board placed outside the potentially
explosive area.
6. The pumps have an ambient tempera-
ture range of -20 to +40 °C and a maxi-
mum process temperature of +40 °C.
The minimum ambient temperature for
a pump with a water-in-oil (WIO) sen-
sor is 0 °C.
7. The thermal protector in the stator
windings has a rated switch tempera-
ture of 150 °C and must guarantee the
disconnection of the power supply. The
power supply must be reset manually.
8. The control unit must protect the WIO
sensor against short circuit current.
The maximum current from the control
unit must be limited to 350 mA.
9. For painted pumps, minimise the risk
of electrostatic discharge by:
• Earthing (mandatory).
• In dry installations, keep a safety
distance between pumps and walk-
ing paths.
• Use wet cloths for cleaning.
10. The WIO sensor must be used only
with a galvanically isolated circuit.
11. The lock nut of the cable connector
must only be replaced with an identical
one.
10
English (GB)

3. Transporting the product
The pump may be transported and stored in a vertical
or horizontal position.
CAUTION
Crushing hazard
Minor or moderate personal injury
‐Make sure the pump cannot roll or fall
over.
3.1 Handling the product
All lifting equipment must be rated for the purpose
and checked for damage before lifting the pump. The
lifting equipment rating must not be exceeded. The
pump weight is stated on the nameplate.
WARNING
Crushing hazard
Death or serious personal injury
‐Do not stack pump packages or pallets
on the top of each other when lifting or
moving them.
‐Always lift the pump by its lifting brack-
et or by a forklift truck, if the pump is
fixed on a pallet. Never lift the pump by
the power cable, hose or pipe.
CAUTION
Sharp element
Minor or moderate personal injury
‐Wear protective gloves when opening
the pump package.
Keep the cable end protectors in storage
for later use.
3.2 Lifting the product
All lifting equipment must be rated for the purpose
and checked for damage before lifting the pump. The
lifting equipment rating must not be exceeded.
WARNING
Crushing hazard
Death or serious personal injury
‐When lifting the pump, make sure your
hand cannot get caught between the
lifting bracket and the hook.
WARNING
Crushing hazard
Death or serious personal injury
‐Make sure that the hook is fixed prop-
erly to the lifting bracket.
‐Make sure that the lifting bracket is
tightened before lifting the pump.
WARNING
Crushing hazard
Death or serious personal injury
‐Do not stand near or under the pump
when it is lifted.
When lifting the pump, use the right lifting
point to keep the pump balanced.
For horizontal, dry-installed pumps, a special lifting
bracket can be ordered to ease the lifting of the
pump. See the service instruction on
www.grundfos.com.
11
English (GB)

4. Installation requirements
All safety regulations must be observed at the
installation site.
Prior to installation, check the oil level in the oil
chamber.
Compliance with the standard EN
60079-14 is a customer responsibility.
The pump must be installed vertically in
both auto-coupling or free-standing sub-
merged installation.
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 work on the installation
area when the environment is explosive.
DANGER
Electric shock
Death or serious personal injury
‐It must be possible to lock the main
switch in position 0. Type and require-
ments as specified in EN 60204-1.
DANGER
Electric shock
Death or serious personal injury
‐Make sure there are at least 3 m free
cable above the maximum liquid level.
For safety reasons, all work in pits must be
supervised by a person outside the pit.
Make all maintenance and service work
when the pump is placed outside the pit.
DANGER
Crushing hazard
Death or serious personal injury
‐Make sure that the lifting bracket is
tightened before lifting the pump.
Carelessness during lifting or transportation may
cause personal injury or damage to the pump.
5. Mechanical installation
When mounted on a base stand or brackets, the
pump must be installed outside the pit. An inlet line
must be connected to the pump.
A dimensional sketch for each installation type can be
found at the end of this booklet.
Before installing the product, make sure
that the bottom of the pit is even.
WARNING
Electric shock
Death or serious personal injury
‐It must be possible to switch off the
power supply and lock the main switch
in position 0 to ensure that the power
supply cannot be switched on uninten-
tionally.
‐Any external voltage connection to the
pump must be switched off before
working on the pump.
The pump must not run dry. Dry running
can cause ignition hazard.
Install an independent secondary level
switch to ensure that the pump is stopped
in case the primary stop level switch is not
working.
Inspect the oil level and condition every
3000 operating hours or at least once a
year.
When the pump is new or after replace-
ment of the shaft seal, check the oil level
and water content after one week of oper-
ation.
Use the lifting bracket only for lifting the
pump.
Do not use it to hold the pump during oper-
ation.
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.
12
English (GB)

CAUTION
Biological hazard
Minor or moderate personal injury
‐Flush the pump thoroughly with clean
water and rinse the pump parts after
dismantling. Pits for submersible drain-
age and effluent pumps may contain
drainage or effluent with toxic and/or
contagious substances.
‐Wear appropriate personal protective
equipment and clothing.
‐Observe the local hygiene regulations
in force.
CAUTION
Sharp element
Minor or moderate personal injury
‐Do not touch the sharp edges of the
impeller without wearing protective
gloves.
Always use Grundfos accessories to avoid
malfunctions due to incorrect installation.
5.1 Mounting the product
SE1 and SEV pumps are designed for two installation
types:
• submerged installation:
- vertically on an auto coupling
- vertically, free-standing on a ring stand.
• dry installation:
- vertically on a base stand
- horizontally with brackets secured to a
concrete floor or foundation.
For WIO-sensor versions, the outlet pipe must be
directed upwards to ensure proper operation of the
sensor.
All Ex pumps are equipped with a WIO
sensor.
In case of dry, horizontal installation, the
outlet pipe must be directed upwards to
ensure the proper operation of the WIO
sensor.
5.1.1 Submerged installation
Pumps for permanent installation can be installed on
a stationary auto-coupling guide rail system. The
auto-coupling system facilitates maintenance and
service as the pump can easily be lifted out of the pit.
Before beginning installation procedures,
make sure that the atmosphere in the pit is
not potentially explosive.
Make sure that the pipes are installed with-
out the use of undue force. Do not allow
loads from the weight of the pipes to be
carried by the pump. Use loose flanges to
ease the installation and to avoid pipe ten-
sion at flanges and bolts.
Do not use elastic elements or bellows in
the pipes. Never use these elements to
align the pipes.
The guide rails must not have any axial
play as this would cause noise during op-
eration.
TM028404
Submerged pump on auto coupling
13
English (GB)

Proceed as follows:
1. Drill mounting holes for the guide-rail bracket on
the inside of the pit and provisionally fasten it with
two anchor bolts.
2. Place the auto-coupling base unit on the bottom
of the pit. Use a plumb line to establish the correct
positioning. Fasten the auto coupling with heavy-
duty anchor bolts. If the bottom of the pit is
uneven, the auto-coupling base unit must be
supported.
3. Connect the outlet pipe in accordance with the
generally accepted procedures. Avoid exposing
the pipe to distortion or tension.
4. Place the guide rails in the auto-coupling base
unit and adjust the length of the rails accurately to
the guide-rail bracket at the top of the pit.
5. Unscrew the provisionally fastened guide-rail
bracket, fit it on top of the guide rails and finally
fasten it firmly to the pit wall. The guide rails must
not have any axial play as this would cause noise
during operation.
6. Clean out debris from the pit before lowering the
pump.
7. Fit the guide shoe to the pump outlet and grease
its gasket before lowering the pump into the pit.
8. Slide the guide shoe along the guide rails and
lower the pump into the pit by using the chain
secured to the lifting bracket. See fig. Submerged
pump on auto coupling. When the pump reaches
the auto-coupling base unit and the chain is
unstrained, pull it towards the guide-rail several
times to ensure proper connection.
9. Hang up the end of the chain on a suitable hook
at the top of the pit. Make sure that the chain is
straight but not strained.
10. Adjust the length of the power cable by coiling it
up on a relief fitting to ensure that the cable is not
damaged during operation. Ensure that the coiled
cable cannot fall into the pit. Make sure that the
cables are not sharply bent or pinched.
11. Connect the power and control cables, if any.
The free end of the power cable must
not be submerged, as water may pene-
trate into the motor.
5.1.2 Free-standing submerged installation
Pumps for free-standing submerged installation can
stand freely on the bottom of the pit. The pump must
be installed on a ring stand. See fig. Free-standing
submerged pump on ring stand.
The ring stand is available as an accessory.
In order to facilitate service on the pump, fit a flexible
union or coupling to the elbow on the outlet for easy
separation.
If a hose is used, make sure that it does not buckle
and the inside diameter of the hose matches the
outlet.
If a rigid pipe is used, fit the parts in the following
order:
1. union or coupling
2. non-return valve
3. isolating valve.
If the pump is supposed to be installed in muddy
conditions or on uneven ground, place it on a solid
support.
Proceed as follows:
1. Fit a 90 ° elbow to the pump outlet and connect
the outlet pipe or hose.
2. Lower the pump into the liquid by a chain secured
to the lifting bracket of the pump. Place the pump
on a plain, solid foundation.
3. Hang up the end of the chain on a suitable hook
at the top of the pit, so the chain cannot touch the
pump housing.
4. Adjust the length of the power cable by coiling it
up on a relief fitting to ensure that the cable is not
damaged during operation. Fasten the relief fitting
to a suitable hook at the top of the pit. Make sure
that the cables are not sharply bent or pinched.
5. Connect the power and control cables, if any.
The free end of the power cable must not
be submerged as water may penetrate into
the motor.
14
English (GB)

TM028405
Free-standing submerged pump on ring stand
5.1.3 Dry installation
In dry installations, the pump must be installed
permanently outside the pit.
The motor is enclosed and watertight, so it cannot be
damaged in case the installation site is flooded.
Precautions
• As the pump is installed outside the pit, make sure
that the liquid level in the pit is high enough to
ensure sufficient NPSH.
• Size the inlet line according to the length and the
desired pump performance. A possible difference
in level between the pit and the pump inlet must
also be taken into account.
• Support the pipes to avoid strain or other
mechanical influences being transmitted to the
pump. Install expansion joints and pipe hangers.
See fig. Horizontal dry installation with brackets.
TM028399
Horizontal dry installation with brackets
Pos. Description
1 Expansion joint
2 Non-return valve
3 Isolating valve
4 Pipe hanger
• If a reducer is fitted between the inlet line and the
pump, it must be eccentric. Fit the reducer with
the straight edge facing upwards to avoid air
pockets in the inlet line. Air in the inlet line may
cause cavitation. See fig. Horizontal dry
installation with brackets.
• Install the pump on a separate foundation, for
instance a concrete foundation. The weight of the
foundation must be approximately 1.5 times the
weight of the pump. To prevent vibrations from
being transmitted to the building and pipes, place
the pump on vibration absorbing material.
TM028401
Vertical dry installation on a base stand
15
English (GB)

TM028402
Horizontal dry installation with brackets
Proceed as follows:
1. Fit the base stand or brackets to the pump. See
dimensional sketches at the end of this booklet.
2. Mark and drill fixing holes in the concrete floor or
foundation.
3. Fasten the pump with expansion bolts.
4. Check that the pump stands vertically or
horizontally. Use a spirit level.
5. Connect the power cable.
Fit an isolating valve on the inlet side
of the pump and a non-return valve as
well as an isolating valve on the outlet
side.
6. Install the inlet and outlet lines as well as the
valves, if any. Make sure that the pump is not
stressed by the pipes.
Tightening torques for inlet and outlet flanges
Grade 4.6 (5) galvanised steel screws and nuts.
DN DC Screw
Torque [Nm +/- 5]
Slightly
oiled
Well lubri-
cated
DN 65 145 4 × M16 70 60
DN 80 160 8 × M16 70 60
DN 100 180 8 × M16 70 60
DN 150 240 8 × M20 140 120
Grade A2.50 (AISI 304) steel screws and nuts.
DN DC Screw
Torque [Nm +/- 5]
Slightly
oiled
Well lubri-
cated
DN 65 145 4 × M16 - 60
DN 80 160 8 × M16 - 60
DN 100 180 8 × M16 - 60
DN 150 240 8 × M20 - 120
The gasket must be a full face, reinforced
paper gasket, such as Klingersil C4300. If
softer gasket material is used, torques
must be reconsidered.
6. Electrical connection
WARNING
Electric shock
Death or serious personal injury
‐Before starting any work on the prod-
uct, make sure that the fuses have
been removed or the main switch has
been switched off and locked in posi-
tion 0. Make sure that the power sup-
ply cannot be switched on unintention-
ally.
WARNING
Electric shock
Death or serious personal injury
‐Make sure the earth and phase con-
ductors are not mixed up, follow the
description in the wiring diagram.
‐Make sure the earth conductor is con-
nected first.
Connect the pump to an external main
switch which ensures all-pole disconnec-
tion with a contact separation according to
EN 60204 1.
Make sure that the main switch is locked in
position 0. Type and requirements as
specified in EN 60204-1.
The electrical connection must be carried
out in accordance with local regulations.
Set the motor-protective circuit breaker to the rated
current of the pump. The rated current is stated on
the nameplate.
In hazardous locations, connect pumps to
a control box with a motor protection relay
with IEC trip class 10.
16
English (GB)

Observe the following:
• Do not install Grundfos control boxes,
pump controllers, Ex barriers, or leave
the free end of the power cable in po-
tentially explosive environments.
• The classification of the installation site
must be defined by the owner of the
site.
• On explosion-proof pumps, make sure
that an external earth conductor is con-
nected to the external earth terminal on
the pump by using a secure cable
clamp. Clean the surface of the exter-
nal earth connection and mount the ca-
ble clamp.
• The cross section of the earth conduc-
tor must be at least 4 mm2, such as
H07 V2-K (PVT 90 °) yellow and green.
• Make sure that the earth connection is
protected from corrosion.
• Make sure that all protective equip-
ment has been connected correctly.
• Float switches used in potentially ex-
plosive environments must be ap-
proved for this application. They must
be connected to the Grundfos LC 231
or LC 241 or DC, DCD pump controller
by the intrinsically safe barrier to en-
sure a safe circuit.
Set the motor-protective circuit breaker to
the rated current of the pump. The rated
current is stated on the nameplate.
A damaged power cable must be replaced
by the manufacturer, its service agent or
similarly qualified persons.
The supply voltage and frequency are marked on the
nameplate. The voltage tolerance must be within - 10
% / + 6 % of the rated voltage. Make sure that the
motor is suitable for the power supply available at the
installation site.
All pumps are supplied with 10 m power cable and a
free cable end, except for pumps for Australia, which
have 15 m cable.
Pumps without sensor must be connected to one of
the following controllers:
• a control box with motor-protective circuit breaker,
such as a Grundfos CU 100
• a Grundfos LC 231, LC 241 or DC, DCD pump
controller.
Pumps with sensor must be connected to a
Grundfos IO 113 and one of the following controllers:
• a control box with motor-protective circuit breaker,
such as a Grundfos CU 100
• Grundfos level controllers LC 231, LC 241 or DC,
DCD pump controller.
Before installation and the first startup of
the pump, check the condition of the pow-
er cable to avoid short circuits.
WIO sensor
Every explosion-proof pump is assembled with a WIO
sensor.
For safe installation and operation of pumps equipped
with a WIO sensor, install an RC filter between the
power supply and the pump.
If an RC filter should be installed to avoid
any kind of transients in the installation, in-
stall it between the power supply and the
pump.
The following may cause problems in case of
transients in the power supply system:
• Motor power:
- The bigger the motor, the higher the transients.
• Length of power cable:
- Where power and signal cables are running in
parallel close to each other, the risk of
transients causing interference between power
and signal cables increases with the length of
the cables.
• Switchboard layout:
- Power and signal cables must be separated as
much as possible. Close installation can cause
interference in case of transients.
• Supply network "stiffness":
- If a transformer station is located close to the
installation, the supply network may be "stiff"
and transient levels can be higher.
If combinations of the above aspects are present, it
may be necessary to install RC filters for pumps with
WIO sensors to protect against transients.
Transients can be completely eliminated if soft
starters are used. Be aware that soft starters and
variable-speed drives have other EMC-related issues
that must be taken into consideration.
For further information, see the installation and
operating instructions for the selected control box or
pump controller.
17
English (GB)

6.1 Frequency converter operation
In principle, all three-phase motors can be connected
to a frequency converter.
However, frequency converter operation often
exposes the motor insulation system to a heavier load
and causes the motor to be more noisy due to eddy
currents caused by voltage peaks.
In addition, large motors operated with a frequency
converter are loaded by bearing currents.
For frequency converter operation, observe the
following:
• 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 the motor terminals.
The cable influence is not taken into account. See
the frequency converter data sheet regarding the
actual values and the cable influence on the peak
voltage and dU/dt.
• Minimum switching frequency is 2.5 kHz. Variable
switching frequency is accepted.
• If the pump is Ex-approved, 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 or standards must be complied
with.
Before installing a frequency converter, calculate the
lowest permissible frequency in the installation to
avoid zero flow.
• Do not reduce the motor speed to less than 30 %.
• Keep the flow rate above 1 m/sec.
• Let the pump run at rated speed at least once a
day to prevent sedimentation in the piping system.
• Do not exceed the frequency indicated on the
nameplate as this may cause motor overload.
• Keep the power cable as short as possible. The
peak voltage increases with the length of the
power cable.
• Use input and output filters on the frequency
converter.
• Use a screened power cable, if there is a risk that
electrical noise may disturb other electrical
equipment.
• Set frequency converter for constant-torque
operation. Pulse width modulation should be
used.
When operating the pump by a frequency converter,
consider the following:
• The locked rotor torque can be lower depending
on the type of the frequency converter.
• The noise level may increase. See the installation
and operating instructions for the selected
frequency converter.
Maximum repetitive
peak voltage
[V]
Maximum dU/dt UN 400 V
[V/μ sec.]
850 2000
Frequency converter use may reduce the
lifespan of the bearings and the shaft seal,
depending on operating mode and other
circumstances.
For more information about the frequency converter
operation, see the data sheet and the installation and
operating instructions for the selected frequency
converter.
18
English (GB)

7. Protection and control functions
7.1 Pump controllers
The pumps can be controlled by the Grundfos LC
231, LC 241, DC and DCD controllers.
Pumps with a sensor are supplied with an IO 113,
which can receive signals from the following
transmitters:
• water-in-oil (WIO) sensor in the pump
• moisture sensor in the motor
• temperature sensor in the stator windings
• winding resistance sensor in the motor.
For further information, see installation and operating
instructions for the specific sensor.
7.1.1 Level controllers
Suitable level controllers:
• LC 231: compact solution with certified motor
protection for single- and dual-pump versions.
• LC 241: cabinet solution offering modularity and
customisation for single- and dual-pump versions.
• Dedicated Controls (DC): high-end cabinet
solution for multi-pump versions up to 6 pumps.
In the following description, "level switches" can be air
bells, float switches or electrodes depending on the
selected pump controller.
Depending on the security and the number of the
pumps, level switches can be used in the following
setups:
• Dry run (optional)
• Stop
• Start pump 1 (single-pump version)
• Start pump 2 (dual-pump version)
• High level (optional)
An analogue level transmitter can be used and all
levels can be customised. Level switches can be
used with level transmitter (one for dry and one for
high level).
When installing the level switches, observe the
following:
• To prevent air intake and vibrations, install the
stop level switch, so the pump is stopped before
the liquid level is lowered to the middle of the
motor housing.
• Install the start level switch, so the pump is started
at the required level. The pump must always be
started before the liquid level reaches the bottom
of the inlet pipe.
• Always install the high-level alarm switch about 10
cm above the start level switch. However, the
alarm must always be given before the liquid level
reaches the inlet pipe.
For further settings, see the installation and operating
instructions for the selected pump controller.
The pump must not run dry.
Install an additional level switch to ensure
that the pump is stopped in case the stop
level switch is not operating.
The pump must be stopped when the liq-
uid level reaches the upper edge of the
clamp.
Float switches used in potentially explo-
sive environments must be approved for
this application. They must be connected
to the Grundfos LC 231 or LC 241 level
controller by an intrinsically safe barrier to
ensure a safe circuit. In potentially explo-
sive environments, the anti-seizing func-
tion must be disabled on the pump control-
lers.
7.1.2 DC, DCD
The Dedicated Controls (DC) system consists of a
CU 362 control unit connected to one or two IO 351
modules. An optional IO 113 sensor can be
connected to each pump.
CU 362 must be incorporated in all installations. The
units in the system can be combined in different ways
based on user requirements.
DC controls the pumps by power contactors and IO
351 modules. Power contactors, cable and other
high-voltage components must be positioned as far
as possible from the control system and the signal
cables.
DC is operated through a user-friendly control panel
on the CU 362 or a PC. Wireless remote control is
available. DC can be integrated into an existing
SCADA system.
19
English (GB)

7.1.3 IO 113
IO 113 provides an interface between a Grundfos
wastewater pump equipped with sensors and the
pump controller(s). The most important sensor status
information is indicated on the front cover.
One pump can be connected to one IO 113. Together
with the sensors, IO 113 provides a galvanic isolation
between the motor voltage in the pump and the
connected controller(s).
As standard, IO 113 is capable for the following:
• protect the pump against overheating
• monitor the status of:
- motor winding temperature
- leakage (WIO or WIA)
- moisture in the pump.
• measure the stator insulation resistance
• stop the pump in case of alarm
• remotely monitor the pump by RS-485
communication (Modbus or GENIbus)
• control the pump by a frequency converter.
Note: not all pumps with sensors have IO 113 as
standard. The IO 113 module needs to be ordered
separately, as an accessory.
Do not use IO 113 for other purposes than
those mentioned in the installation and op-
erating instructions for IO 113.
Do not connect pumps with sensors to LC
231 as it may cause damage to the level
controller.
PET1 T2 G1 A1 G2 A2 K1 K2 R1 R2
D1 D2 D3 D4 D5 D6 D7 D8
P1 P2 P3 P4 P5
A Y B
I1 I2 I3
ON DIP
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3
4
5
6
7
8
9
1011
12
13
14
16
15
17
TM051881
IO 113
Pos. Description
1 Terminals for alarm relay
2Terminals for analog and digital inputs and
outputs
3 Terminals for supply voltage
4Potentiometer for setting the warning limit
of stator insulation resistance
5Terminals for RS-485 for GENIbus or Mod-
bus
6 Indicator light for moisture measurement
7Indicator light for stator insulation resist-
ance
8 Indicator light for leakage (WIO or WIA)
9 Indicator light for vibrations in the pump
10 Terminals for measurement of stator insula-
tion resistance
11 Terminals for connection of pump sensors
12 DIP switch for configuration
13 Indicator light for motor temperature
14 Button for resetting alarms
15 Indicator light for motor running
16 Indicator light for service
17 Terminals for digital outputs
General installation data
Supply voltage
24 VAC ± 10 %
50 or 60 Hz
24 VDC ± 10 %
Supply current Min. 2.4 A; max. 8 A
Power consumption Max. 5 W
Ambient temperature -25 to +65 °C
Enclosure class IP20
20
English (GB)