Grundfos SQF User manual

SQF
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

SQF
English (GB)
Installation and operating instructions ..................................5
Български (BG)
Упътване за монтаж и експлоатация.................................20
Čeština (CZ)
Montážní a provozní návod ........................................37
Deutsch (DE)
Montage- und Betriebsanleitung .....................................52
Dansk (DK)
Monterings- og driftsinstruktion ......................................70
Eesti (EE)
Paigaldus- ja kasutusjuhend........................................85
Español (ES)
Instrucciones de instalación y funcionamiento...........................100
Suomi (FI)
Asennus- ja käyttöohjeet .........................................117
Français (FR)
Notice d'installation et de fonctionnement..............................132
Ελληνικά (GR)
Οδηγίες εγκατάστασης και λειτουργίας................................148
Hrvatski (HR)
Montažne i pogonske upute .......................................164
Magyar (HU)
Telepítési és üzemeltetési utasítás ..................................179
Italiano (IT)
Istruzioni di installazione e funzionamento .............................194
Lietuviškai (LT)
Įrengimo ir naudojimo instrukcija ....................................210
Latviešu (LV)
Uzstādīšanas un ekspluatācijas instrukcija .............................225
Nederlands (NL)
Installatie- en bedieningsinstructies ..................................240
Polski (PL)
Instrukcja montażu i eksploatacji....................................257
3
Table of contents

Português (PT)
Instruções de instalação e funcionamento .............................273
Română (RO)
Instrucţiuni de instalare şi utilizare...................................289
Svenska (SE)
Monterings- och driftsinstruktion ....................................305
Slovensko (SI)
Navodila za montažo in obratovanje .................................320
Slovenčina (SK)
Návod na montáž a prevádzku .....................................335
Türkçe (TR)
Montaj ve kullanım kılavuzu .......................................350
Українська (UA)
Інструкції з монтажу та експлуатації ................................366
Bahasa Indonesia (ID)
Petunjuk pengoperasian dan pemasangan.............................383
Қазақша (KZ)
Орнату жəне пайдалану нұсқаулықтары .............................398
(AR) ةيبرعلا
    .............................................415
4SQF
Table of contents

English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. General information ............. 5
1.1 Hazard statements .............. 5
1.2 Notes ..................... 5
1.3 Target group.................. 6
2. Receiving the product............ 6
2.1 Inspecting the product ............ 6
2.2 Scope of delivery ............... 6
3. Installing the product ............ 6
3.1 Location .................... 6
3.2 Mechanical installation ............ 7
3.3 Electrical connection .............10
4. Starting up the product ...........11
4.1 Resetting the product .............11
5. Handling and storing the product .....11
5.1 Handling the product .............11
5.2 Storing the product ..............12
6. Product introduction ............12
6.1 Product description ..............12
6.2 Intended use .................13
6.3 Pumped liquids ................13
6.4 Identification..................13
7. Service ....................16
7.1 Maintenance .................16
8. Taking the product out of operation ....16
9. Fault finding the product ..........17
9.1 The pump does not run ............17
9.2 The pump runs butdelivers no flow......17
9.3 The pump runs at reduced performance . ..17
9.4 Frequent starts and stops ..........18
9.5 How to check the powersupply ........18
9.6 Megging ....................18
10. Technical data ................18
10.1 Operating conditions .............18
10.2 Mechanical data................18
10.3 Electrical data .................19
11. Disposing of the product ..........19
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
supervision or instruction concerning use
of the appliance in a safe way and under-
stand 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.
1.1 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.
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.
1.2 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.
5
English (GB)

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.
1.3 Target group
These installation and operating instructions are
intended for professional installers and for the
operators of the product.
2. Receiving the product
2.1 Inspecting the product
On receipt of the product, do the following:
1. Check that the product is as ordered.
If the product is not as ordered, contact the
supplier.
2. Check that no visible parts have been damaged.
If any visible parts have been damaged, contact
the transport company.
2.2 Scope of delivery
The box contains the following items:
Quantity Description
1 SQF pump
1Installation and operating instructions for
the SQF pump
1 Quick guide
1 Separate nameplate
(1) Terminal kit (Optional. Market specific)
3. Installing the product
3.1 Location
The motor must be installed below the wa-
ter level.
The separate nameplate supplied with the
product must be fixed close to the installa-
tion site.
3.1.1 Minimum space
A
B
TM070055
Product and borehole diameters
6
English (GB)

Pos. Description
A
Minimum borehole diameter (recommended):
- Ø76 (3") for SQF 0.6, SQF 1, SQF 1.2, SQF
2.5, SQF 3, SQF 5, SQF 7.
- Ø105 (4") for SQF 3A, SQF 5A, SQF 7, SQF
9, SQF 14.
Borehole diameter should include: product di-
ameter, well casing tolerance and borehole
tolerance.
B
Product diameter:
- Ø74 (3") for SQF 0.6, SQF 1, SQF 1.2, SQF
2.5, SQF 3, SQF 5, SQF 7.
- Ø101 (4") for SQF 3A, SQF 5A, SQF 7, SQF
9, SQF 14.
3.1.2 Installation depths
• Maximum installation depth:
- 150 m below the static water level, which is the
level of water when the product is not in
operation.
• Minimum installation depths:
- Vertical installation: During startup and
operation, the product, including the level
sensor, must be completely submerged in
water.
- Horizontal installation: The level sensor must
be installed at least 0.3 m below the dynamic
water level, which is the level of water when
the pump is in operation. Note that the level
sensor must be completely submerged in
water and lifted above the product.
1
2
A
B
TM071581
Horizontal installation
Pos. Description
1 Dynamic water level
2 Level sensor
A Minimum 0.3 m above the level sensor
BCable length below level sensor: 0.3 - 0.6 m
(product specific)
3.1.3 Position of the product
The pump is suitable for vertical as well as horizontal
installation and any position in between.
TM080268
Pump positions
Never place the pump shaft below the hor-
izontal plane.
3.2 Mechanical installation
DANGER
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product.
‐Make sure that the power supply can-
not be switched on accidentally.
WARNING
Contamination when pumping drinking
water
Death or serious personal injury
‐Before the pump is used for supplying
drinking water, flush the pump thor-
oughly with clean water.
‐Do not use the pump for drinking water
if the internal parts have been in con-
tact with particles or substances not
suitable for water intended for human
consumption.
The pump must be installed according to
national water regulations and standards.
7
English (GB)

Position the product horizontally on a solid
support when you work on the product.
Fit a flow sleeve to avoid overheating of
the motor, if you install the pump in one of
these locations:
• in a wide borehole or basin
• horizontally.
3.2.1 Lifting the product
DANGER
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product.
‐Make sure that the power supply can-
not be switched on accidentally.
WARNING
Electric shock
Death or serious personal injury
‐Do not lift the product by the power ca-
ble.
CAUTION
Crushing of feet
Minor or moderate personal injury
‐Wear safety shoes when moving the
product.
‐Use lifting equipment.
CAUTION
Sharp element
Minor or moderate personal injury
‐Wear safety gloves.
‐Use lifting equipment.
Observe local regulations concerning limits
for manual lifting and handling.
1. Note the weight of the product stated on the pump
and motor nameplates.
2. Follow one of these procedures according to the
weight of the product and local regulations.
a. If manual lifting is allowed, grip the pump by
the outlet chamber or attach lifting wires to the
wire hooks.
b. If manual lifting is not allowed, attach lifting
wires to the wire hooks and use appropriate
lifting equipment. Remove the lifting wires
before the product is lowered below ground
level.
Related information
5.1 Handling the product
5.2 Storing the product
8. Taking the product out of operation
3.2.2 Cable termination kit
We recommend that you join the submersible drop
cable and the motor cable by means of a Grundfos
cable termination kit, type KM.
Cable termination kit, type KM
Cross-sectional area [mm2]Product number
1.5 to 6.0 96021473
> 6.0 Contact Grundfos
3.2.3 Connecting the pipes
WARNING
Pressurised system
Death or serious personal injury
‐Design the system for the maximum
pump pressure plus 10 % to avoid pipe
burst.
We recommend that you install a pressure
relief valve designed for the maximum
pump pressure.
Minimum torque for fitting the first riser
pipe section to the pump is 55 Nm.
1. Fit the riser pipe to the pump. Grip the pump by
the outlet chamber. Take care not to damage the
cables.
a. If you use plastic pipes, use a compression
coupling between the pump and the first pipe
section.
Plastic pipes expand when they are
loaded. Consider this fact in relation
to the installation depth.
8
English (GB)

3.2.4 Fastening the drop cable to the riser pipe
1. Fit cable clips on the riser pipe for every 3 m.
a. If you use plastic pipes, leave some loose
cable between the cable clips, as plastic pipes
expand when loaded.
A
TM070054
Where to fit cable clips on the riser pipe
Pos. Description
A 3 m
3.2.5 Lowering the pump into the borehole
DANGER
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product.
‐Make sure that the power supply can-
not be switched on accidentally.
WARNING
Electric shock
Death or serious personal injury
‐Do not lower the product by the power
cable.
Use appropriate lifting equipment to lower
the pump into the borehole or basin.
Observe local regulations concerning limits
for manual lifting and handling.
We recommend that you secure the pump
with an unloaded straining wire before low-
ering it into the borehole or basin.
1. Note the weight of the product stated on the pump
and motor nameplates.
2. Follow one of these procedures according to the
weight of the product and local regulations:
a. If manual lifting is allowed, grip the pump by
the outlet chamber or attach lifting wires to the
wire hooks.
b. If manual lifting is not allowed, attach lifting
wires to the wire hooks and use appropriate
lifting equipment. Remove the lifting wires
before the product is lowered below ground
level.
3. Lower the pump carefully into the borehole or
basin by holding on to the riser pipe. Take care
not to damage the power cable and the
submersible drop cable.
4. Fasten the drop cable to the riser pipe with cable
clips as you connect the pipes.
Securing the pump with a straining wire
Do not use the straining wire to carry the
load of both pump and riser pipe when you
lower the pump or pull the pump out of the
borehole.
1. Secure the pump with an unloaded straining wire.
TM070053
Straining wire
9
English (GB)

2. Lower the pump to the required depth and
complete the installation with a borehole seal.
3. Loosen the straining wire so that it becomes
unloaded and lock the straining wire to the
borehole seal with wire locks.
3.3 Electrical connection
DANGER
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product.
‐Make sure that the power supply can-
not be switched on accidentally.
DANGER
Electric shock
Death or serious personal injury
‐The product must be earthed.
‐Connect the product permanently to
the fixed wiring via an external main
switch with a minimum contact gap of 3
mm in all poles.
WARNING
Electric shock
Death or serious personal injury
‐Do not lift the product by the power ca-
ble.
All electrical connections must be carried
out by a qualified electrician in accordance
with local regulations.
Check that the supply voltage and fre-
quency correspond to the values stated on
the nameplate.
If the power cable is damaged, it must be
replaced by the manufacturer, the manu-
facturer's service partner or a similarly
qualified person.
The cross-sectional area of the submersi-
ble drop cable must be large enough to
meet the voltage requirements.
Never connect the product to an external
frequency converter.
3.3.1 Residual-current circuit breakers
WARNING
Electric shock
Death or serious personal injury
‐Use a suitable type of GFCI capable of
handling earth fault currents with DC
content (pulsating DC).
If the pump is connected to an electrical installation
where a ground fault circuit interrupter (GFCI) is used
for additional protection, this ground Fault Circuit
Interrupter shall be able to trip when ground fault
currents with DC content occur.
If national legislation requires a Residual Current
Device (RCD) or equivalent in the electrical
installation, this must be type B or better, due to the
nature of the constant DC leakage current.
The residual-current circuit breaker must be marked
like this:
TM066230
Take into account the total leakage current of all the
electrical equipment in the installation.
3.3.2 Wiring diagrams
NL
TM070523
Wiring diagrams for SQF
3.3.3 Motor protection
The product incorporates thermal protection against
slow overloading and blocking. No external motor
protection is required.
10
English (GB)

Related information
6.1.1 Built-in motor protection
3.3.4 Controllers for SQF pumps
You can connect SQF pumps to the following
controller types:
• CIU 903 (up to 2500 W)
• CU 200 (up to 1400 W)
• IO101
• IO102
• IO50.
3.3.5 Sizing the submersible drop cable
Before you install the pump, make sure to use the
right cable size for the submersible drop cable.
The cross-section of the submersible drop
cable must be large enough to meet the
voltage requirements.
How to calculate the maximum cable length
If the power factor (PF) of the motor unit equals 1.0,
you can use this equation to calculate the maximum
cable length:
= 
  
1002
TM070522
Explanation of the equation
Symbol Unit Description
L MAX [m] Maximum cable length
U [V] Supply voltage
ΔU [%] Maximum recommended volt-
age drop in percentage
I [A] Maximum motor current
ρ[Ω
mm2/m]
Specific resistance of the ca-
ble
ϥ[mm2]
Cross-sectional area of the in-
dividual wires in the submersi-
ble drop cable
Maximum motor current
The maximum motor current depends on the motor
properties and electrical installation. According to IEC
60364-5-52:2009 the installation and cable must
be dimensioned for a current that is higher than the
maximum motor current.
Maximum recommended voltage drop
• According to IEC 60364-5-52:2009 for installation
in domestic applications, the maximum
recommended voltage drop is 5 % for cable
lengths up to 100 m.
• For installation in industrial applications and in
regions where the IEC standard is not applicable,
local regulations may require that a different
maximum value for voltage drop must be used for
the calculation of the maximum cable length.
Specific resistance of the drop cables
The specific resistance of the drop cables supplied by
Grundfos for SQ, SQE and SQF pumps is 0.02 Ω
mm2/m.
Maximum cable lengths for Grundfos MSF 3
motors
Calculation of maximum cable length for the different
motor sizes is based on a voltage drop of 5 % and a
supply voltage of 240 V.
If the calculation above cannot be used, go to
Grundfos Product Center for sizing.
Grundfos can supply submersible drop ca-
bles for any type of installation. Please
contact Grundfos for more information.
4. Starting up the product
1. Make sure that the well can yield a quantity of
water at least corresponding to the pump
performance.
2. Submerge the pump completely in the water.
3. Switch on the power supply.
4. Check that the pump delivers water.
a. If the pump does not deliver water, see
information on fault finding.
Related information
9. Fault finding the product
4.1 Resetting the product
1. Switch off the power supply for 1 minute. The
pump is now reset.
2. Switch on the power and start the pump.
5. Handling and storing the product
5.1 Handling the product
See information on lifting the product.
11
English (GB)

Related information
3.2.1 Lifting the product
8. Taking the product out of operation
5.2 Storing the product
CAUTION
Crushing of feet
Minor or moderate personal injury
‐Wear safety shoes when moving the
product.
Storing a new product
Make sure that the storage temperature is within the
permissible limits.
Storing a used product
If the product is not going to be used for a period of
time, proceed as follows:
1. Disconnect the power supply to the product.
2. Lift the product carefully out of the borehole.
3. Disconnect the product from the outlet pipe.
4. Make sure that the storage temperature is within
the permissible limits.
If the storage temperature is below zero, the
motor must be filled with frost proof motor liquid.
Contact a service workshop authorised by
Grundfos. See the Grundfos service instruction by
scanning the QR code.
TM070145
http://net.grundfos.com/qr/i/96547278
Related information
3.2.1 Lifting the product
8. Taking the product out of operation
10.2 Mechanical data
6. Product introduction
6.1 Product description
The SQF pump range comprises two pump
technologies:
• helical rotor pump (3") for high heads and small
flow rates
• centrifugal pump (3" and 4") for low heads and
large flow rates.
The performance curves below illustrate the pump
performance of the two pump models.
Q
H
A
B
TM022425
Performance ranges for helical rotor and centrifugal
pumps
Pos. Description
A Helical rotor pump
B Centrifugal pump
Q /day
All pump types are available in two material variants:
• SQF is the standard version made of stainless
steel DIN W.-Nr. 1.4301
• SQF-N is made of stainless steel DIN W.-Nr.
1.4401.
6.1.1 Built-in motor protection
The product incorporates protection of the motor
against the following situations:
• dry running
• voltage surges up to 6000 V. In areas with high
lightning intensity, external lightning protection is
required.
• overvoltage
• undervoltage
• overtemperature.
In case of overload, the built-in overload protection
will stop the pump for 5 minutes. After that period, the
pump will automatically attempt to restart.
12
English (GB)

Related information
3.3.3 Motor protection
6.1.2 Dry-running protection
If the pump is running and the liquid level in the
borehole, tank or basin is drawn below the level
sensor, the dry-running protection will stop the pump
to ensure that it is not damaged. A level sensor fixed
on the power cable ensures that the pump operation
stops before dry running occurs.
After a stop caused by dry running, the pump
is automatically reset when the level sensor is again
submerged in the liquid, and the pump will
restart after 5 minutes.
6.2 Intended use
This product is intended for the following applications:
• groundwater supply for private households,
irrigation systems, and small waterworks
• liquid transfer in tanks
• pressure boosting.
Only use the product according to the
specifications stated in these installation
and operating instructions.
6.2.1 Drinking water
If the product is used for drinking water, the following
precautions must be taken to avoid contamination:
• Before use, make sure that the product does not
come into contact with dust or with chemicals not
suitable for contact with drinking water,
for example lubricants, greases, or oils.
• If the pump is used with potentially toxic liquids, it
can no longer be used for drinking water.
• In case of maintenance, be sure to always use
original parts to maintain the initial hygienic
characteristics of the product.
6.3 Pumped liquids
The product is suitable for pumping clean, thin, non-
aggressive and non-explosive liquids without solid
particles or fibres.
Viscosity
Pumping liquids with a higher viscosity than that of
water will cause head loss and a higher power
consumption.
If liquids with a viscosity higher than that of water are
to be pumped, please contact Grundfos.
pH value
5 to 9
Liquid temperature
Observe the maximum liquid temperature of 40 °C
under all conditions to ensure sufficient cooling of the
motor.
Maximum sand content
Sand in the liquid will reduce the life of the pump and
increase the risk of blocking.The sand content of the
pumped liquid must not exceed: 50 g/m³.
6.4 Identification
6.4.1 Nameplate for SQF 3" pumps for EU
Nameplate for SQF 0.6, SQF 1, SQF 1.2, SQF 2.5.
The nameplate is engraved into the pump sleeve.
1
3
7
10
8
13
2
6
9
20.5
12
20.11
20.9
20.4
4
5
20.12
11
20.1
TM080052
Example of nameplate for a SQF 3" pump
Pos. Description
1 Product number
2 Type designation
3 Pump generation
4 Pump net weight
5 Type and size of connecting thread
6 Pump unit
7 Year/Week
8 P1= Factory code
13
English (GB)

Pos. Description
9 Production country
10 Serial number
11 Direction of rotation
12 Arrow for direction
13 Free area for 2D code
20.1 CE
20.11 Morocco
20.12 UK Importer address
20.4 EAC
20.5 CN RoHS
20.9 UKCA
6.4.2 Nameplate for SQF 3" pumps for USA
Nameplate for SQF 0.6, SQF 1, SQF 1.2, SQF 2.5.
The nameplate is engraved into the pump sleeve.
1
3
7
10
8
13
2
6
9
20.5
12
20.11
20.4
4
5
11
20.1
TM080053
Example of nameplate for a SQF 3" pump
Pos. Description
1 Product number
2 Type designation
3 Pump generation
4 Pump net weight
5 Type and size of connecting thread
6 Pump unit
7 Year/Week
Pos. Description
8 P1= Factory code
9 Production country
10 Serial number
11 Direction of rotation
12 Arrow for direction
13 Free area for 2D code
20.1 CE
20.11 Morocco
20.4 EAC
20.5 CN RoHS
6.4.3 Nameplate for SQF 4" pumps
Nameplate for SQF 3A, SQF 5A, SQF 7, SQF 9, SQF
14. The nameplate is attached to the suction inter
connector.
1
911
13 12 102
7
5
6
4
3
8
20.3 20.1 20.2 20.4
TM080054
Example of nameplate for SQF 4" pump
Pos. Description
1 Product number
2 Type designation
3 Pump net weight
4 MEI
5 Model
6 Pump unit
7 Serial number
8 Direction of rotation
9 Arrow for direction
10 Free area for 2D code
11 Production country
12 Year/Week
13 P1= Factory code
14
English (GB)

Pos. Description
20.1 CE
20.2 EAC
20.3 CN RoHS
20.4 Morocco
6.4.4 Nameplate for MSF 3 motors
The nameplate is engraved into the motor sleeve.
1
3
16
15
2
5
6
7
8
10
22
4
30.4
17
18
12
9
30.3
21
30.11
30.9
11
13
14
30.1
30.5
30.12
20
30.6
19
TM080055
Example of nameplate for an MSF 3 motor
Pos. Description
1 Product number
2 Type designation
3 Pump generation
4 Voltage DC [V]
5 Voltage AC [V]
6 Maximum input power [kW]
7 Maximum input current [A]
Pos. Description
8Maximum continuous operating temperature
[˚C]
9Maximum continuous operating temperature
[˚F]
10 Insulation class
11 Power factor
12 Rated speed [min-1]
13 Enclosure class
14 Motor net weight [kg/lb]
15 Year/Week
16 P1= Factory code
17 Country of origin
18 Built-in temperature sensor
19 Serial number (8 digits from SAP)
20 Direction of rotation
21 Arrow for direction
22 Free area for 2D code
30.1 CE
30.11 Morocco
30.12 UK Importer address
30.3 RCM
30.4 EAC
30.5 CN RoHS
30.6 CE Weee & Battery No.
30.9 UKCA
6.4.5 Type key for SQF helical rotor pump
SQF 1.2 -2 x
Example
Code Explanation
SQF Type range
1.2 Rated flow rate [m3/h] at 3000
min-1
-2 Number of stages
Blank = Stainless steel DIN W.-Nr.
1.4301
N = Stainless steel DIN W.-Nr. 1.4401
6.4.6 Type key for SQF centrifugal pump
SQF 5A -3 x
15
English (GB)

Example
Code Explanation
SQF Type range
5A Rated flow rate [m3/h] and pump
generation
-3 Number of stages
Blank = Stainless steel DIN W.-Nr. 1.4301
N = Stainless steel DIN W.-Nr. 1.4401
6.4.7 Type key for MSF 3 motor
MSF -3 x
Code Explanation
MSF Type
range
3Motor diameter in
inches
x
- [ ] = Stainless steel EN
1.4301 - AISI 304
- N = Stainless steel EN
1.4401 - AISI 316
7. Service
DANGER
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product.
‐Make sure that the power supply can-
not be switched on accidentally.
DANGER
Magnetic field
Death or serious personal injury
‐Persons with pacemakers dismantling
this product must exercise caution
when handling the magnetic materials
embedded in the rotor.
Service must be performed by Grundfos service
engineers or at Authorised Grundfos
service workshops.
Service kits and service tools are available from
Grundfos. See the Grundfos service instruction by
scanning the QR code.
TM070145
http://net.grundfos.com/qr/i/96547278
7.1 Maintenance
The pumps are normally maintenance-free.
8. Taking the product out of operation
TM070145
http://net.grundfos.com/qr/i/96547278
Related information
3.2.1 Lifting the product
5.1 Handling the product
5.2 Storing the product
16
English (GB)

9. Fault finding the product
DANGER
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product.
‐Make sure that the power supply can-
not be switched on accidentally.
Fault finding and fault correction must be carried out
by qualified persons.
Related information
4. Starting up the product
9.1 The pump does not run
Cause Remedy
The fuses in the electric
installation are blown.
Replace the blown fuses.
If the new ones blow too,
check that the electric in-
stallation was made cor-
rectly and that the sub-
mersible drop cable is
OK. If fuses keep blow-
ing, contact a local elec-
trician.
No power supply. Check the power source.
The motor protection
has stopped the mo-
tor due to overload.
Remove any blockage of
the pump or the motor
causing the over-
load. Ensure sufficient
power from the power
source.
The pump or the submer-
sible drop cable is defec-
tive.
Check that the electric in-
stallation was made cor-
rectly and that the sub-
mersible drop cable is
OK. Contact the lo-
cal service center to re-
pair or replace the pump
or the submersible drop
cable.
Overvoltage or undervolt-
age has occurred.
Restore correct power
supply. Check the speci-
fied voltage output from
the power source.
9.2 The pump runs but delivers no flow
Cause Remedy
Low power supply. Ensure sufficient power
from the power source.
The outlet valve is
closed. Open the outlet valve.
The non-return valve is
stuck in closed position.
Remove the pump from
the borehole and clean
or replace the non-return
valve.
The inlet strainer is clog-
ged.
Remove the pump from
the borehole and clean
the inlet strainer.
The pump is defective. The pump needs repair.
9.3 The pump runs at reduced performance
Cause Remedy
The drawdown is larger
than anticipated.
Lower the pump deeper
into the borehole, throttle
the pump or replace it
with a smaller model to
obtain a lower perform-
ance.
The outlet valve is partly
closed or blocked.
Clean the outlet valve or
replace it, if necessary.
The outlet pipe is partly
clogged by impurities
(ochre).
Clean the outlet pipe or
replace it, if necessary.
The non-return valve is
partly blocked.
Remove the pump from
the borehole and clean
or replace the non-return
valve.
The pump and the riser
pipe are partly clogged
by impurities (ochre).
Remove the pump from
the borehole. Clean or
replace the riser pipe or
the pump, if necessary.
The pump is defective. Have the pump re-
paired or replaced.
Leakage in the pipes. Repair or replace
the pipes, if necessary.
Leakage in the riser pipe. Repair or replace the ris-
er pipe.
Low power has occurred.
Ensure sufficient power
from the power source.
Check the specified volt-
age output from the pow-
er source.
17
English (GB)

9.4 Frequent starts and stops
Cause Remedy
The difference between
start and stop level is too
small.
Increase the differential.
Level sensor is activated.
Lower the pump deeper
into the borehole, throttle
the pump or replace it
with a smaller model to
obtain a lower perform-
ance.
The non-return valve is
leaking or stuck half-
open.
Remove the pump from
the borehole and clean
or replace the non-return
valve, if necessary.
The supply voltage is un-
stable.
Ensure sufficient power
from the power source.
Check the specified volt-
age output from the pow-
er source.
Low power supply. Ensure sufficient power
from the power source.
The motor temperature is
too high.
Check the water temper-
ature and secure suffi-
cient flow around the mo-
tor. If necessary, remove
the pump from the bore-
hole and add a flow
sleeve for cooling.
9.5 How to check the power supply
DANGER
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product.
1. See the Grundfos service instruction by scanning
the QR code.
TM070145
http://net.grundfos.com/qr/i/96547278
2. Follow the instructions for the relevant
system issued in the Grundfos service instruction.
9.6 Megging
Do not meg an installation incorporating
this product as the built-in electronics may
be damaged.
L
N
PE
U
U
U
C
C
C
TM071582
10. Technical data
10.1 Operating conditions
Liquid temperature Maximum 40 ºC
pH value 5-9
10.2 Mechanical data
Storage tem-
perature -20 to +60 ºC
Motor liquid Type SML 3, frost-proof down to -20
ºC
Motor cable 2 m, 3 x 1.5 mm2
Pump outlet
size RP 1 and Rp 1 1/4
18
English (GB)

Pump diame-
ter
74 mm (3") for SQF 0.6, SQF 1,
SQF 1.2, SQF 2.5, SQF 3, SQF 5,
SQF 7
101 mm (4") for SQF 3A, SQF 5A,
SQF 7, SQF 9, SQF 14
Borehole di-
ameter
Minimum 76 mm (3") for SQF 0.6,
SQF 1, SQF 1.2, SQF 2.5, SQF 3,
SQF 5, SQF 7
Minimum 105 mm (4") for SQF 3A,
SQF 5A, SQF 7, SQF 9, SQF 14
Installation
depth
Maximum 150 m below static water
level
Minimum for vertical installation:
Level sensor must be completely
submerged in water.
Minimum for horizontal installation:
Level sensor positioned at least 0.3
m below the dynamic water level.
Net weight Maximum 12.6 kg depending on the
product type.
Related information
5.2 Storing the product
10.3 Electrical data
Supply voltage
[V], DC applica-
tion
30-300 VDC, PE (100-300 VDC
for 2500W motor)
Supply voltage
[V], AC applica-
tion
1 x 90-240, - 10 % to + 6 %, PE
Operation via
generator
As a minimum, the generator
output must be equal to the mo-
tor P1 [kW] + 10%.
Frequency [Hz] 50 or 60
Starting current
The motor starting current is
equal to the highest value stated
on the motor nameplate.
Leakage current Leakage current does not ex-
ceed 3.5 mA
Power factor PF = 1
11. Disposing of the product
WARNING
Magnetic field
Death or serious personal injury
‐Persons with pacemakers dismantling
this product must exercise caution
when handling the magnetic materials
embedded in the rotor.
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.
The crossed-out wheelie bin symbol
on a product means that it must be
disposed of separately from house-
hold waste. When a product marked
with this symbol reaches its end of
life, take it to a collection point desig-
nated by the local waste disposal au-
thorities. The separate collection and
recycling of such products will help
protect the environment and human
health.
See also end-of-life information at
www.grundfos.com/product-recycling.
19
English (GB)

Argentina
Bombas GRUNDFOS de Argentina S.A.
Ruta Panamericana km. 37.500industin
1619 - Garín Pcia. de B.A.
Tel.: [phone]
Fax: [phone]
Australia
GRUNDFOS Pumps Pty. Ltd.
P.O. Box 2040
Regency Park
South Australia 5942
Tel.: [phone]
Fax: [phone]
Austria
GRUNDFOS Pumpen Vertrieb
Ges.m.b.H.
Grundfosstraße 2
A-5082 Grödig/Salzburg
Tel.: [phone]
Fax: [phone]
Belgium
N.V. GRUNDFOS Bellux S.A.
Boomsesteenweg 81-83
B-2630 Aartselaar
Tel.: [phone]
Fax: [phone]
Belarus
Представительство ГРУНДФОС в
Минске
220125, Минск
ул. Шафарнянская, 11, оф. 56, БЦ
«Порт»
Тел.: [phone]
[phone]
Факс: [phone]
E-mail: [email protected]
Bosnia and Herzegovina
GRUNDFOS Sarajevo
Zmaja od Bosne 7-7A
BiH-71000 Sarajevo
Tel.: [phone]
Fax: [phone]
www.ba.grundfos.com
E-mail: [email protected]
Brazil
BOMBAS GRUNDFOS DO BRASIL
Av. Humberto de Alencar Castelo
Branco, 630
CEP 09850 - 300
São Bernardo do Campo - SP
Tel.: [phone]
Fax: [phone]
Bulgaria
Grundfos Bulgaria EOOD
Slatina District
Iztochna Tangenta street no. 100
BG - 1592 Sofia
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
Canada
GRUNDFOS Canada inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Tel.: [phone]
Fax: [phone]
China
GRUNDFOS Pumps (Shanghai) Co. Ltd.
10F The Hub, No. 33 Suhong Road
Minhang District
Shanghai 201106 PRC
Tel.: [phone]
Fax: [phone]
Columbia
GRUNDFOS Colombia S.A.S.
Km 1.5 vía Siberia-Cota Conj. Potrero
Chico,
Parque Empresarial Arcos de Cota Bod.
1A.
Cota, Cundinamarca
Tel.: [phone]
Fax: [phone]
Croatia
GRUNDFOS CROATIA d.o.o.
Buzinski prilaz 38, Buzin
HR-10010 Zagreb
Tel.: [phone]
Fax: [phone]
www.hr.grundfos.com
Czech Republic
GRUNDFOS Sales Czechia and Slovakia
s.r.o.
Čajkovského 21
779 00 Olomouc
Tel.: [phone]
Denmark
GRUNDFOS DK A/S
Martin Bachs Vej 3
DK-8850 Bjerringbro
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
www.grundfos.com/DK
Estonia
GRUNDFOS Pumps Eesti OÜ
Peterburi tee 92G
11415 Tallinn
Tel.: + 372 606 1690
Fax: + 372 606 1691
Finland
OY GRUNDFOS Pumput AB
Trukkikuja 1
FI-01360 Vantaa
Tel.: [phone]
France
Pompes GRUNDFOS Distribution S.A.
Parc d’Activités de Chesnes
57, rue de Malacombe
F-38290 St. Quentin Fallavier (Lyon)
Tel.: [phone]
Fax: [phone]
Germany
GRUNDFOS GMBH
Schlüterstr. 33
40699 Erkrath
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
Service in Deutschland:
[email protected]
Greece
GRUNDFOS Hellas A.E.B.E.
20th km. Athinon-Markopoulou Av.
P.O. Box 71
GR-19002 Peania
Tel.: [phone]
Fax: [phone]
Hong Kong
GRUNDFOS Pumps (Hong Kong) Ltd.
Unit 1, Ground floor, Siu Wai industrial
Centre
29-33 Wing Hong Street & 68 King Lam
Street, Cheung Sha Wan
Kowloon
Tel.: [phone]
Fax: [phone]
Hungary
GRUNDFOS Hungária Kft.
Tópark u. 8
H-2045 Törökbálint
Tel.: [phone]
Fax: [phone]
India
GRUNDFOS Pumps india Private Limited
118 Old Mahabalipuram Road
Thoraipakkam
Chennai 600 097
Tel.: [phone]
Indonesia
PT GRUNDFOS Pompa
Graha intirub Lt. 2 & 3
Jln. Cililitan Besar No.454. Makasar,
Jakarta Timur
ID-Jakarta 13650
Tel.: [phone]
Fax: [phone]
Ireland
GRUNDFOS (Ireland) Ltd.
Unit A, Merrywell Business Park
Ballymount Road Lower
Dublin 12
Tel.: [phone]
Fax: [phone]
Italy
GRUNDFOS Pompe Italia S.r.l.
Via Gran Sasso 4
I-20060 Truccazzano (Milano)
Tel.: [phone]
Fax: [phone]
Japan
GRUNDFOS Pumps K.K.
1-2-3, Shin-Miyakoda, Kita-ku
Hamamatsu
431-2103 Japan
Tel.: [phone]
Fax: [phone]
Korea
GRUNDFOS Pumps Korea Ltd.
6th Floor, Aju Building 679-5
Yeoksam-dong, Kangnam-ku, 135-916
Seoul, Korea
Tel.: [phone]
Fax: [phone]
Grundfos companies