GRUNDFOS INSTRUCTIONS

SQ, SQE
Installation and operating instructions

SQ, SQE
Installation and operating instructions
Other languages
http://net.grundfos.com/qr/i/96160909
 Table of contents
SQ, SQE

English (GB)
Installation and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3
English (GB)

English (GB) Installation and operating instructions

Original installation and operating instructions 11. Disposing of hazardous or toxic

materials . . . . . . . . . . . . . . . . . . . 21
Table of contents
12. Disposing of the product . . . . . . . . . . 21
1. General information . . . . . . . . . . . . . 4
1.1 Hazard statements . . . . . . . . . . . . . . 4 13. Document quality feedback . . . . . . . . 21
1.2 Notes . . . . . . . . . . . . . . . . . . . . . 5

2. Product introduction . . . . . . . . . . . . 5 1. General information

2.1 Applications . . . . . . . . . . . . . . . . . . 5 This appliance can be used by children
2.2 Generator operation . . . . . . . . . . . . . 5 aged from 8 years and above and persons
with reduced physical, sensory or mental
3. Installation requirements . . . . . . . . . . 6
capabilities or lack of experience and
3.1 Installation depths. . . . . . . . . . . . . . . 6 knowledge if they have been given
3.2 Positional requirements. . . . . . . . . . . . 6 supervision or instruction concerning use
3.3 Well preparation. . . . . . . . . . . . . . . . 6 of the appliance in a safe way and
3.4 Pumped liquid requirements . . . . . . . . . 6 understand the hazards involved.
3.5 Liquid temperatures and cooling . . . . . . . 7 Children shall not play with the appliance.
3.6 Selection of diaphragm tank, precharge Cleaning and user maintenance shall not
pressure setting and pressure switch . .. . 8 be made by children without supervision.
3.7 Well system pressure overload . . . . . .. . 9
Read this document before you install the
4. Installing the product . . . . . . . . . . . . 10 product. Installation and operation must
4.1 Preparation . . . . . . . . . . . . . . . . . . 11 comply with local regulations and accepted
4.2 Motor protection. . . . . . . . . . . . . . . . 12 codes of good practice.
4.3 Connection of motor . . . . . . . . . . . . . 12
4.4 Fitting the cable guard . . . . . . . . . . . . 12 1.1 Hazard statements
4.5 Fitting the submersible drop cable . . . . . . 13 The symbols and hazard statements below may
4.6 Pipework connection . . . . . . . . . . . . . 13 appear in Grundfos installation and operating
instructions, safety instructions and service
5. Start-up . . . . . . . . . . . . . . . . . . . . 15 instructions.
5.1 Minimum flow rate . . . . . . . . . . . . . . 15
DANGER
5.2 Built-in protection . . . . . . . . . . . . . . . 15
Indicates a hazardous situation which, if
6. Maintenance and service . . . . . . . . . . 15 not avoided, will result in death or serious
6.1 Contaminated pumps . . . . . . . . . . . . . 15 personal injury.
6.2 Assembly of pump part and motor . . . . . . 15
WARNING
6.3 Removal of non-return valve . . . . . . . . . 16
Indicates a hazardous situation which, if
6.4 Fitting the cable plug to the motor . . . . . . 16
not avoided, could result in death or
7. Storage . . . . . . . . . . . . . . . . . . . . 16 serious personal injury.
7.1 Frost protection . . . . . . . . . . . . . . . . 16
CAUTION
8. Fault finding . . . . . . . . . . . . . . . . . 17 Indicates a hazardous situation which, if
8.1 The pump does not run . . . . . . . . . . . . 17 not avoided, could result in minor or
8.2 The pump runs but gives no water . . . . . . 17 moderate personal injury.
8.3 The pump runs at reduced capacity . . . . . 17 The hazard statements are structured in the following
8.4 Frequent starts and stops . . . . . . . . . . 18 way:
8.5 The current consumption is too high . . . . . 18
SIGNAL WORD
8.6 Megging . . . . . . . . . . . . . . . . . . . . 18
Description of the hazard
8.7 Tests not allowed . . . . . . . . . . . . . . . 19
Consequence of ignoring the warning
9. Checking the power supply . . . . . . . . 20 • Action to avoid the hazard.
10. Technical data . . . . . . . . . . . . . . . . 21
10.1 Sound pressure level . . . . . . . . . . . . . 21

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 English (GB)
1.2 Notes 2.2 Generator operation
The symbols and notes below may appear in It is safe to operate the SQ/SQE with a generator.
Grundfos installation and operating instructions, The pump can safely be operated with a generator
safety instructions and service instructions. that is sized 50 % above the P1 (input power) values
of the pump.
Observe these instructions for explosion-
proof products.
Recommended
Min. generator
Motor [kW] generator output
size [kW]
[kW]
A blue or grey circle with a white graphical
symbol indicates that an action must be 0.7 1.2 1.5
taken. 1.15 1.9 2.5
1.55 2.6 3.2
A red or grey circle with a diagonal bar,
possibly with a black graphical symbol, 1.85 2.8 3.50
indicates that an action must not be taken
or must be stopped.

If these instructions are not observed, it

may result in malfunction or damage to the
equipment.

Tips and advice that make the work easier.

2. Product introduction
DANGER
Electric shock
Death or serious personal injury
‐ The pump must not be used when
people are in the water.

Fill the page in Appendix 1 with nameplate

data before installing the product.

Pump and motor nameplates are in section A.1

Appendix.

2.1 Applications
The SQ and SQE pumps are designed for pumping
thin, clean, non-aggressive, non-explosive liquids, not
containing solid particles or fibres.
Typical applications:
• Groundwater supply for
- private housing
- households
- small waterworks
- irrigation systems.
• Liquid transfer in tanks.
• Pressure boosting.

5
English (GB)

3. Installation requirements Pos. Description

A Dynamic water level
3.1 Installation depths
Maximum installation depth below the static water B Static water level
level is 150 metres. C Well diameter: min. 76 mm
See the section on pipework connections.
D Drawdown
Minimum installation depth below the dynamic water
level: E Installation depth below static water level
• Vertical installation: During start-up and operation,
the pump must always be completely submerged 3.2 Positional requirements
in water. Make sure that the pump does not fall below the
• Horizontal installation: The pump must be horizontal plane.
installed and run at least 0.5 metres below the
dynamic water level.
• Fit a flow sleeve if there is a risk that the pump will
be covered by mud.

B
A
2

TM011375
D Positional requirements of the pump

Pos. Description
1 Allowed
2 Not allowed

Related information
E
3.1 Installation depths

3.3 Well preparation

If the pump is to be installed in a well, clear any sand
and oil from it, as no pump can withstand constantly
pumping sandy water.

3.4 Pumped liquid requirements

TM086710

The maximum sand content of the water must not

C exceed 50 g/m3. A larger sand content will result in
pump lifetime reduction and in blockage.
Installation depth
Before pumping liquids with higher
viscosity than water, contact Grundfos.
Dynamic water level must be above the pump.

6
 English (GB)
pH values: Install the motor above the well screen. If a flow
5-9. sleeve is used, the pump can be installed freely in
the borehole.
Liquid temperature:
The temperature of the pumped liquid must not Do not run the pump against a closed
exceed 35 °C. valve for more than 5 minutes as there is
If the actual temperature of the pumped liquid no cooling flow which results in motor and
exceeds the specified value or the operating pump overheat.
conditions otherwise fall outside the specified
conditions, the pump may stop. Contact Grundfos.

3.5 Liquid temperatures and cooling

1
5
TM086926

SQ/SQE pump in a borehole

Pos. Description
1 Liquid temperature
2 Borehole diameter
3 Pump diameter
4 Discharge flow
Flow past the motor to the pump suction
5
strainer

Make sure the temperature of the pumped liquid does

not exceed 35 °C for sufficient motor cooling.

The borehole diameter must be at least

76 mm.

7
English (GB)

3.6 Selection of diaphragm tank, precharge ‐ The installation must be designed for
pressure setting and pressure switch the maximum pump pressure.

The pump has a built-in soft starter providing 2

WARNING seconds run-up time. Therefore the pressure at the
Pressurised system pressure switch and diaphragm tank during start
Death or serious personal injury is lower than the pump cut-in pressure set on
the pressure switch. This lower pressure is called
minimum pressure (Pmin = B + C).

4
7
C 3
2
B 1

TM006445
5 Q
6

Diaphragm tank and pressure switch

Pos. Description
1 Ppre Precharge pressure of diaphragm tank.
2 Pmin Desired minimum pressure.
3 Pcut-in Cut-in pressure set on pressure switch.
4 Pcut-out Cut-out pressure set on pressure switch.
5 Qmax Maximum flow at Pmin.
6 Diaphragm tank
7 Pressure switch
A Head + head loss from dynamic water level to diaphragm tank.
B Head + head loss from diaphragm tank to highest tap.
C Minimum pressure at highest tap.

Make sure that the selected pump can

deliver a pressure higher than Pcut-out + A.

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 English (GB)
3.7 Well system pressure overload
To prevent overpressure, install a pressure relief valve downstream of the well head. The setpoint of the
pressure relief valve must be at least 30 psi above the pressure setting.
If a relief valve is installed, make sure it is connected to an appropiate drainage point.
Using Pmin and Qmax, the minimum diaphragm tank size, precharge pressure and pressure switch settings can
be found in the guideline table below:

Example
Pmin = 35 m head, Qmax = 2.5 m3/h.
On the basis of this information, the following values can be found in the table:
Minimum diaphragm tank size = 33 litres.

Ppre = 31.5 m head

Pcut-in = 36 m head
Pcut-out = 50 m head

Qmax [m3/h]
Pmin Ppre Pcut-in Pcut-out
0.6 0.8 1 1.2 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5
[m] [m] [m] [m]
Diaphragm tank size [litres]
25 8 8 18 18 18 18 24 33 33 50 50 50 50 80 80 80 80 80 80 22.5 26 40
30 8 8 18 18 18 24 33 33 50 50 50 50 80 80 80 80 80 80 27 31 45
35 8 18 18 18 18 24 33 33 50 50 50 80 80 80 80 80 80 31.5 36 50
40 8 18 18 18 18 24 33 50 50 50 80 80 80 80 80 80 36 41 55
45 8 18 18 18 24 33 33 50 50 50 80 80 80 80 80 40.5 46 60
50 8 18 18 18 24 33 50 50 50 80 80 80 80 80 45 51 65
55 18 18 18 18 24 33 50 50 50 80 80 80 80 49.5 56 70
60 18 18 18 18 24 33 50 50 80 80 80 80 54 61 75
65 18 18 18 24 24 33 50 50 80 80 80 80 58.5 66 80

1 m head = 0.098 bar.

9
English (GB)

4. Installing the product The electrical connection must be carried

DANGER out by an authorised electrician in
Electric shock accordance with local regulations.
Death or serious personal injury
‐ Before starting work on the pump,
make sure that the power supply has The pump must be installed according to
been switched off and that it cannot be national water regulations and standards.
accidentally switched on.
‐ The pump must be earthed. The pump must never be connected to a
‐ The pump must be connected to an capacitor or to another type of control box
external mains switch with a minimum than CU 302.
contact gap of 3 mm in all poles. The pump must never be connected to an
external frequency converter.
‐ If the motor cable is damaged, it must
be replaced by Grundfos, an
authorised Grundfos service workshop
Fix the separate nameplate supplied with
or similarly qualified persons to avoid a
the pump close to the installation site.
hazard.

The supply voltage, rated maximum current and

power factor (PF) appear from the motor nameplate.
The required voltage for Grundfos submersible
motors, measured at the motor terminals, is -10 %
to +6 % of the nominal voltage during continuous
operation including variation in the supply voltage and
losses in cables.

DANGER
Electric shock
Death or serious personal injury
‐ If the pump is connected to an electric
installation where an earth-leakage
circuit breaker (ELCB) is used as an
additional protection, this circuit
breaker must trip out when earth fault
currents with DC content (pulsating
DC) occur.

The earth leakage circuit breaker must be marked

with the following symbol: .

DANGER
Electric shock
Death or serious personal injury
‐ Do not lower or lift the pump by means
of the motor cable.

WARNING
Toxic material
Death or serious personal injury
‐ Thoroughly clean the pump before
pumping drinking water.
‐ Do not use the pump for drinking water
if the internal parts have been in
contact with particles or substances
not suitable for water intended for
human consumption.

10
 English (GB)
Supply voltage 4.1.1 Motor liquid refill
1 × 200-240 V -10 % / +6 %, 50/60 Hz, PE. The level of motor liquid is decisive for the operating
The current consumption can only be measured by life of the bearings and consequently the life of the
with a true RMS instrument. If other instruments are motor.
used, the value measured will differ from the actual If for any reason the motor liquid has been drained or
value. lost, the motor must be refilled with motor liquid.
On SQ/SQE pumps, a leakage current of 3.5 mA at
230 V, 50 Hz, can typically be measured. The leakage
current is proportional to the supply voltage. Use Grundfos motor liquid SML 3.
The SQE pump can be connected to a control box,
type CU 302.
To refill the motor, proceed as follows:
4.1 Preparation 1. Remove the cable guard and separate the pump
part from the motor.
Grundfos MS 3 and MSE 3 submersible motors
have water-lubricated slide bearings. No additional
lubrication is required.
The submersible motors are factory-filled with a
special Grundfos motor liquid (type SML 3), which is
frost-proof down to -20 °C and preserved to prevent
the growth of bacteria.

10°

TM029606
Refilling of motor liquid

2. Place the motor in vertical position with an

inclination of approx. 10°. If placed in a vice, see
the section on Assembly of pump part and motor.

3. Remove the filling plug using a screwdriver or a

similar tool.

4. Inject motor liquid into the motor with a filling

syringe or with a similar tool.

5. To allow possible air to escape, move the motor

from side to side.

6. Refit the filling plug and make sure it is tight.

7. Assemble the pump part and the motor. See the

section on Assembly of pump part and motor.

8. Refit the cable guard.

Related information
6.2 Assembly of pump part and motor
4.1.2 Cable sizing

Before installing the pump, make sure to use the right

cable size for the submersible drop cable.

11
English (GB)

Maximum cable lengths for Grundfos MSF 3

The cross-section of the submersible drop motors
cable must be large enough to meet the
voltage requirements. 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.
Maximum cable length calculation
If the calculation above cannot be used, go to
Use the following equation 1): Grundfos Product Center for sizing.

∙∆ 4.2 Motor protection

= The motor incorporates thermal overload protection
∙ 2 ∙ 100 ∙ and requires no additional motor protection.

4.3 Connection of motor

1) Power factor (PF) of the motor unit is 1. The motor can be connected directly to the mains.
Start/stop of the pump typically done via a pressure
Explanation of the equation switch.

Symbol Unit Description

The pressure switch must be rated for the
LMAX [m] Maximum cable length maximum amps of the specific pump size.

U [V] Supply voltage

Maximum recommended
ΔU [%] N L
voltage drop in percentage
I [A] Maximum motor current
Specific resistance P 1
ρ [Ω mm2/m]
of the cable
Cross-sectional area of the
ϥ [mm2] individual wires in the
submersible 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

TM011480
be dimensioned for a current that is higher than the
maximum motor current.

Maximum recommended voltage drop

Connection of motor
• According to IEC 60364-5-52:2009 for installation
in domestic applications, the maximum
recommended voltage drop is 5 % for cable Pos. Description
lengths up to 100 m.
• For installation in industrial applications and in 1 Pressure switch
regions where the IEC standard is not applicable,
local regulations may require that a different 4.4 Fitting the cable guard
maximum value for voltage drop must be used for To fit the cable guard, proceed as follows:
the calculation of the maximum cable length.
1. Make sure that the submersible drop cable lies flat
Specific resistance of the drop cables in the cable guard.
The specific resistance of the drop cables supplied by
Grundfos for SQ and SQE pumps is 0.02 Ω mm2/m.

12
 English (GB)
2. Place the cable guard in the groove in the cable 4.6 Pipework connection
plug. The two flaps of the cable guard must
engage with the upper edge of the pump sleeve. WARNING
Pressurised system
Death or serious personal injury
‐ Make sure that the pipework has an
adequate pressure rating.

Before determining the installation depth of

the pump, take the expansion of plastic
pipes into consideration.

When the riser pipe is fitted, use a chain pipe wrench.

The pump must be gripped by the pump discharge
chamber.

TM029613

Placement of the cable guard in the cable plug

3. Fasten the cable guard to the pump suction

TM081713
strainer with the two self-tapping screws supplied.

Gripping the pump

When connecting plastic pipes, use a compression

coupling between the pump and the first pipe section.
Where flanged pipes are used, in case of flanged
pipes, use slotted flanges so they can take the
submersible drop cable.
TM014427

The figure Pipework connection below shows a pump

installation.

Fastening of the cable guard to the pump suction

strainer

4.5 Fitting the submersible drop cable

Connect the submersible drop cable and the motor
cable with a type KM Grundfos cable termination
kit. Connect the submersible drop cable and the
motor cable with a type KM Grundfos cable
termination kit.

Cable termination kit, type KM

Cross-sectional area Product number
1.5 to 6.0 mm2 96021473

For larger cross-sections, contact Grundfos.

13
English (GB)

TM086711

Pipework connection

Pos. Description
A Cable clips
B Straining wire
C 3m
D Static water level
E Maximum 150 m

4.6.1 Cable clips

Cable clips must be fitted every 3 metres.
When connecting plastic pipes, fit the cable clips
loosely as plastic pipes expand when loaded.
Where flanged pipes are used, fit the cable clips
above and below each joint.
4.6.2 When lowering the pump into the borehole
Secure the pump with an unloaded straining wire.
Loosen the straining wire so that it becomes
unloaded and lock it to the borehole seal with wire
locks.

The straining wire must not be used for

pulling the pump with riser pipe out of the
borehole.

14
 English (GB)
5. Start-up Before servicing the pump make sure to
Do not start the pump until it is completely submerged notify the personnel about the pumped
in the liquid. liquid.
Start the pump and do not stop it until the pumped
liquid is completely clean, otherwise the pump parts If Grundfos is requested to service the pump,
and the non-return valve may clog. Grundfos must be contacted with details about the
pumped liquid, etc. before the pump is returned for
5.1 Minimum flow rate service. Otherwise, Grundfos can refuse to accept the
pump for service.
Make sure that the flow rate is least 50 l/h to have
proper motor cooling.
6.2 Assembly of pump part and motor
The pump dry-running protection is 1. Place the motor horizontally in a vice and tighten
effective only within the recommended it. Make sure that the vice clamps on the hatched
duty range of the pump. area of the motor. See the figure Assembly of
pump part and motor below.
2. Pull the pump shaft out to the position shown in
5.2 Built-in protection
figure Position of pump shaft.
In case of overload, the built-in overload protection
stops the pump for 5 minutes, then it restarts.
If the pump stopped because of dry running, it starts

TM028425
automatically after 5 minutes.
If the pump is restarted and the borehole is empty, the
pump stops after 30 seconds.
To reset the pump, switch of the power supply for 1 Position of pump shaft
minute.
3. Grease the motor shaft end with the grease
The motor is protected in case of: supplied with the motor.
• dry running 4. Screw the pump part on the motor (55 Nm).
• voltage surges (up to 6000 V) In areas with high
lightning intensity, external lightning protection is The pump shaft must engage with the
required. motor shaft. Use a spanner on the
• overvoltage clamping faces of the pump part.
• undervoltage
• overload
• overtemperature.

SQE pumps, MSE 3 motors

TM086684
Via the CU 302, the dry-running stop limit
of the MSE 3 motors can be adjusted to L
156 mm
match the actual application.

Assembly of pump part and motor, showing

6. Maintenance and service available area for clamping
Service kits, service tools and the Grundfos Service
Manual are available on request from Grundfos.
The pumps can be serviced at a Grundfos service
Motor (P2) L
centre.
[kW] [mm]
6.1 Contaminated pumps 0.70 120
DANGER 1.15 102
Toxic or radio active liquid
1.55 84
Death or serious personal injury
‐ If a pump has been used for a liquid 1.85 66
which is injurious to health or toxic, the
pump will be classified as Make sure there is no clearance between the pump
contaminated. part and the motor.

15
English (GB)

6.3 Removal of non-return valve Make sure there is no clearance between the motor
and the cable plug.
1. Cut off the legs of the valve guide using side-
cutting pliers or a similar tool. Related information
4. Installing the product

7. Storage
Storage temperature: -20 °C to +60 °C.

TM014338
TM014337

7.1 Frost protection

Make sure that the pump is stored in a frost free
location and that the motor liquid is frost proof.
2. Turn the pump upside down. Do not store the pump without motor liquid in it.
3. Check that all loose parts fall out of the pump.

The non-return valve can be fitted in a Grundfos

service workshop.

6.4 Fitting the cable plug to the motor

DANGER
Electric shock
Death or serious personal injury
‐ Do not remove the motor plug.
‐ The cable with plug must be fitted or
removed by an authorised Grundfos
service workshop or a similarly
qualified person.

To fit the cable plug, proceed as follows:

1. Make sure of the proper type, cross section and
length of the cable.

2. Make sure that the cable plug is greased correctly.

3. Make sure the power supply is properly earthed.

4. Make sure the motor socket is clean and dry, and

that the loose gasket has been fitted.

5. Press the cable plug onto the motor socket.

TM029605

Fitting the cable plug onto the motor socket

6. Fit and tighten the four screws (3.5 Nm).

16
 English (GB)
8. Fault finding
DANGER
Electric shock
Death or serious personal injury
‐ Before starting any work on the product, make sure that the power supply has been switched off
and that it cannot be accidentally switched on.

8.1 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 the electric installation and the submersible drop
cable.
The ELCB or the voltage-operated ELCB has tripped Cut in the circuit breaker.
out.
No power supply. Contact the power supply authorities.
The motor protection has cut off the power supply Check whether the motor/pump is blocked.
due to overload.
The pump/submersible drop cable is defective. Repair/replace the pump/cable.
Overvoltage or undervoltage has occurred. Check the power supply.
The pump is defective. Repair/replace the pump.

8.2 The pump runs but gives no water

Cause Remedy
The discharge valve is closed. Open the valve.
No water or too low water level in borehole. Increase the installation depth of the pump, throttle the
pump or replace it by a smaller model to obtain a
smaller capacity.
The non-return valve is stuck in its closed position. Pull out the pump and clean or replace the valve.
The suction strainer is clogged. Pull out the pump and clean the strainer.
The pump is defective. Repair/replace the pump.

8.3 The pump runs at reduced capacity

Cause Remedy
The drawdown is larger than anticipated. Increase the installation depth of the pump, throttle the
pump or replace it by a smaller model to obtain a
smaller capacity.
The valves in the discharge pipe are partly closed/ Check and clean/replace the valves, if necessary.
blocked.
The discharge pipe is partly choked by impurities Clean/replace the discharge pipe.
(ochre).
The non-return valve of the pump is partly blocked. Pull out the pump and check/replace the valve.
The pump and the riser pipe are partly choked by Pull out the pump. Check and clean or replace the
impurities (ochre). pump, if necessary. Clean the pipes.
The pump is defective. Repair/replace the pump.

17
English (GB)

Cause Remedy
Leakage in the pipework. Check and repair the pipework.
The riser pipe is defective. Replace the riser pipe.
Undervoltage has occurred. Check the power supply.

8.4 Frequent starts and stops

Cause Remedy
The differential of the pressure switch between the Increase the differential. Make sure that the stop
start and stop pressures is too small. pressure does not exceed the operating pressure of the
pressure tank, and the start pressure is high enough to
ensure sufficient water supply.
The water level electrodes or level switches in the Adjust the intervals of the electrodes/level switches
reservoir have not been installed correctly. to ensure suitable time between the cutting-in and
cutting-out of the pump. See installation and operating
instructions for the automatic devices used. If the
intervals between stop/start cannot be changed via the
automatics, the pump capacity may be reduced by
throttling the discharge valve.
The non-return valve is leaking or stuck half-open. Pull out the pump and clean/replace the non-return
valve.
The supply voltage is unstable. Check the power supply.
The motor temperature gets too high. Check the water temperature.

8.5 The current consumption is too high

Cause Remedy
Poor connection in the leads, possibly in the joint. Check the cable and the cable joint.
The supply voltage is too low. Check the power supply.

8.6 Megging

Do not meg an installation incorporating this product as the built-in electronics may be damaged.

L
C

C U

C U

U
N
TM071582

PE

Megging

18
 English (GB)
8.7 Tests not allowed

Do not use insulation or high voltage

testers.

TM086678
M

Use a true RMS instrument.

19
English (GB)

9. Checking the power supply

DANGER
Electric shock
Death or serious personal injury
‐ Before starting any work on the product, make sure that the power supply has been switched off
and that it cannot be accidentally switched on.

1. Supply voltage Measure the voltage (RMS) The voltage should be 1 × 200-240 V -10 % /
between phase and neutral. +6 %, 50/60 Hz, PE, when the motor is loaded.
Connect the voltmeter to the Large variations in supply voltage indicate poor
terminals at the connection. power supply, and the pump should be stopped
until the defect has been remedied.
TM001371

1
2

Pos. Description
1 L
2 N
3 PE

2. Current consumption Measure the current (RMS) while

the pump is operating at a
constant discharge head (if
possible, at the capacity where
the motor is most heavily
loaded).
For maximum current, see
nameplate.
TM001372

20
 English (GB)
10. Technical data 12. Disposing of the product
Supply voltage This product or parts of it must be disposed of in an
environmentally sound way.
1 × 200-240 V -10 % / +6 %, 50/60 Hz, PE.
1. Use the public or private waste collection service.
Operation via generator: As a minimum, the
generator output must be equal to the motor P1 [kW] 2. If this is not possible, contact the nearest
+ 50 %. Grundfos company or service workshop.
Starting current
The motor starting current is equal to the highest The crossed-out wheelie bin
value stated on the motor nameplate. symbol on a product means
that it must be disposed of
Power factor separately from household
PF = 1. waste. When a product
marked with this symbol
Motor liquid reaches its end of life, take it
Type SML 3. to a collection point
designated by the local waste
Motor cable disposal authorities. The
1.5 m, 3 × 1.5 mm2, PE. separate collection and
recycling of such products will
Liquid temperature help protect the environment
Maximum 35 °C. and human health.

Pump outlet size

See also end-of-life information at
SQ 1, SQ 2, SQ 3: Rp 1 1/4. www.grundfos.com/product-recycling.
SQ 5, SQ 7: Rp 1 1/2.

Pump diameter 13. Document quality feedback

74 mm. To provide feedback about this document, scan the
QR code using your phone’s camera or a QR code
Borehole diameter app.
Minimum 76 mm.

Installation depth

FEEDBACK96160909
Maximum 150 m below static water level.

Net weight
Maximum 6.5 kg.

Related information
3.1 Installation depths Click here to submit your feedback

10.1 Sound pressure level

The sound pressure level of the pump is lower than
the limiting values stated in the EC Council Directive
2006/42/EC relating to machinery.

11. Disposing of hazardous or toxic

materials
DANGER
Toxic or radio active liquid
Death or serious personal injury
‐ If a pump has been used for a liquid
which is injurious to health or toxic, the
pump will be classified as
contaminated.

21
Appendix A

Appendix A

A.1. Appendix

Nameplates to be filled in

Pumpunit:
Model:
SN: PN:
Model:
SN:

SQ/SQE SQ/SQE
Q: m3/h H: m Pumpunit:
Stages: Stages:
P2 motor: kW Q: m3/h H: m
Weight: kg I: A P1: kW
Rp: P2 motor: kW
Weight: kg
MADE IN Rp:
MADE IN

Rotation direction
Rotation direction

TM082237
TM082278

22
 Grundfos companies
Argentina Colombia Hong Kong
Bombas GRUNDFOS de Argentina S.A. GRUNDFOS Colombia S.A.S. GRUNDFOS Pumps (Hong Kong) Ltd.
Ruta Panamericana km. 37.500industin Km 1.5 vía Siberia-Cota Conj. Potrero Unit 1, Ground floor, Siu Wai industrial
1619 - Garín Pcia. de B.A. Chico, Centre
Tel.: +54-3327 414 444 Parque Empresarial Arcos de Cota Bod. 29-33 Wing Hong Street & 68 King Lam
Fax: +54-3327 45 3190 1A. Street, Cheung Sha Wan
Cota, Cundinamarca Kowloon
Australia Tel.: +57(1)-2913444 Tel.: +852-27861706 / 27861741
GRUNDFOS Pumps Pty. Ltd. Fax: +57(1)-8764586 Fax: +852-27858664
P.O. Box 2040
Regency Park Croatia Hungary
South Australia 5942 GRUNDFOS CROATIA d.o.o. GRUNDFOS South East Europe Kft.
Tel.: +61-8-8461-4611 Buzinski prilaz 38, Buzin Tópark u. 8
Fax: +61-8-8340-0155 HR-10010 Zagreb H-2045 Törökbálint
Tel.: +385 1 6595 400 Tel.: +36-23 511 110
Austria Fax: +385 1 6595 499 Fax: +36-23 511 111
GRUNDFOS Pumpen Vertrieb www.hr.grundfos.com
Ges.m.b.H. India
Grundfosstraße 2 Czech Republic GRUNDFOS Pumps India Private
A-5082 Grödig/Salzburg GRUNDFOS Sales Czechia and Slovakia Limited
Tel.: +43-6246-883-0 s.r.o. 118 Old Mahabalipuram Road
Fax: +43-6246-883-30 Čajkovského 21 Thoraipakkam
779 00 Olomouc Chennai 600 097
Belgium Tel.: +420-585-716 111 Tel.: +91-44 2496 6800
N.V. GRUNDFOS Bellux S.A.
Boomsesteenweg 81-83 Denmark Indonesia
B-2630 Aartselaar GRUNDFOS DK A/S PT GRUNDFOS Pompa
Tel.: +32-3-870 7300 Martin Bachs Vej 3 Graha intirub Lt. 2 & 3
Fax: +32-3-870 7301 DK-8850 Bjerringbro Jln. Cililitan Besar No.454. Makasar,
Tel.: +45-87 50 50 50 Jakarta Timur
Bosnia and Herzegovina Fax: +45-87 50 51 51 ID-Jakarta 13650
GRUNDFOS Sarajevo E-mail: info_GDK@grundfos.com Tel.: +62 21-469-51900
Zmaja od Bosne 7-7A www.grundfos.com/DK Fax: +62 21-460 6910 / 460 6901
BiH-71000 Sarajevo
Tel.: +387 33 592 480 Estonia Ireland
Fax: +387 33 590 465 GRUNDFOS Pumps Eesti OÜ GRUNDFOS (Ireland) Ltd.
www.ba.grundfos.com Peterburi tee 92G Unit A, Merrywell Business Park
E-mail: grundfos@bih.net.ba 11415 Tallinn Ballymount Road Lower
Tel.: + 372 606 1690 Dublin 12
Brazil Fax: + 372 606 1691 Tel.: +353-1-4089 800
BOMBAS GRUNDFOS DO BRASIL Fax: +353-1-4089 830
Av. Humberto de Alencar Castelo Finland
Branco, 630 OY GRUNDFOS Pumput AB Italy
CEP 09850 - 300 Trukkikuja 1 GRUNDFOS Pompe Italia S.r.l.
São Bernardo do Campo - SP FI-01360 Vantaa Via Gran Sasso 4
Tel.: +55-11 4393 5533 Tel.: +358-(0) 207 889 500 I-20060 Truccazzano (Milano)
Fax: +55-11 4343 5015 Tel.: +39-02-95838112
France Fax: +39-02-95309290 / 95838461
Bulgaria Pompes GRUNDFOS Distribution S.A.
Grundfos Bulgaria EOOD Parc d’Activités de Chesnes Japan
Slatina District 57, rue de Malacombe GRUNDFOS Pumps K.K.
Iztochna Tangenta street no. 100 F-38290 St. Quentin Fallavier (Lyon) 1-2-3, Shin-Miyakoda, Kita-ku
BG - 1592 Sofia Tel.: +33-4 74 82 15 15 Hamamatsu
Tel.: +359 2 49 22 200 Fax: +33-4 74 94 10 51 431-2103 Japan
Fax: +359 2 49 22 201 Tel.: +81 53 428 4760
E-mail: bulgaria@grundfos.bg
Germany Fax: +81 53 428 5005
GRUNDFOS GMBH
Canada Schlüterstr. 33 Kazakhstan
GRUNDFOS Canada inc. 40699 Erkrath Grundfos Kazakhstan LLP
2941 Brighton Road Tel.: +49-(0) 211 929 69-0 7' Kyz-Zhibek Str., Kok-Tobe micr.
Oakville, Ontario Fax: +49-(0) 211 929 69-3799 KZ-050020 Almaty Kazakhstan
L6H 6C9 E-mail: infoservice@grundfos.de Tel.: +7 (727) 227-98-55/56
Tel.: +1-905 829 9533 Service in Deutschland:
Fax: +1-905 829 9512 kundendienst@grundfos.de
Korea
GRUNDFOS Pumps Korea Ltd.
China Greece 6th Floor, Aju Building 679-5
GRUNDFOS Pumps (Shanghai) Co. Ltd. GRUNDFOS Hellas A.E.B.E. Yeoksam-dong, Kangnam-ku, 135-916
10F The Hub, No. 33 Suhong Road 20th km. Athinon-Markopoulou Av. Seoul, Korea
Minhang District P.O. Box 71 Tel.: +82-2-5317 600
Shanghai 201106 PRC GR-19002 Peania Fax: +82-2-5633 725
Tel.: +86 21 612 252 22 Tel.: +0030-210-66 83 400
Fax: +86 21 612 253 33 Fax: +0030-210-66 46 273
Latvia
SIA GRUNDFOS Pumps Latvia
Deglava biznesa centrs
Augusta Deglava ielā 60
LV-1035, Rīga,
Tel.: + 371 714 9640, 7 149 641
Fax: + 371 914 9646
Grundfos companies

Lithuania Serbia Turkey

GRUNDFOS Pumps UAB Grundfos Srbija d.o.o. GRUNDFOS POMPA San. ve Tic. Ltd.
Smolensko g. 6 Omladinskih brigada 90b Sti.
LT-03201 Vilnius 11070 Novi Beograd Gebze Organize Sanayi Bölgesi
Tel.: + 370 52 395 430 Tel.: +381 11 2258 740 Ihsan dede Caddesi
Fax: + 370 52 395 431 Fax: +381 11 2281 769 2. yol 200. Sokak No. 204
www.rs.grundfos.com 41490 Gebze/ Kocaeli
Malaysia Tel.: +90 - 262-679 7979
GRUNDFOS Pumps Sdn. Bhd. Singapore Fax: +90 - 262-679 7905
7 Jalan Peguam U1/25 GRUNDFOS (Singapore) Pte. Ltd. E-mail: satis@grundfos.com
Glenmarie industrial Park 25 Jalan Tukang
40150 Shah Alam, Selangor Singapore 619264 Ukraine
Tel.: +60-3-5569 2922 Tel.: +65-6681 9688 ТОВ "ГРУНДФОС УКРАЇНА"
Fax: +60-3-5569 2866 Faxax: +65-6681 9689 Бізнес Центр Європа
Столичне шосе, 103
Mexico Slovakia м. Київ, 03131, Україна
Bombas GRUNDFOS de México GRUNDFOS s.r.o. Tel.: (+38 044) 237 04 00
S.A. de C.V. Prievozská 4D 821 09 BRATISLAVA Fax: (+38 044) 237 04 01
Boulevard TLC No. 15 Tel.: +421 2 5020 1426 E-mail: ukraine@grundfos.com
Parque industrial Stiva Aeropuerto sk.grundfos.com
Apodaca, N.L. 66600 United Arab Emirates
Tel.: +52-81-8144 4000
Slovenia GRUNDFOS Gulf Distribution
Fax: +52-81-8144 4010 GRUNDFOS LJUBLJANA, d.o.o. P.O. Box 16768
Leskoškova 9e, 1122 Ljubljana Jebel Ali Free Zone, Dubai
Netherlands Tel.: +386 (0) 1 568 06 10 Tel.: +971 4 8815 166
GRUNDFOS Netherlands Fax: +386 (0)1 568 06 19 Fax: +971 4 8815 136
Veluwezoom 35 E-mail: tehnika-si@grundfos.com
1326 AE Almere United Kingdom
Postbus 22015
South Africa GRUNDFOS Pumps Ltd.
1302 CA ALMERE GRUNDFOS (PTY) LTD Grovebury Road
Tel.: +31-88-478 6336 16 Lascelles Drive, Meadowbrook Estate Leighton Buzzard/Beds. LU7 4TL
Fax: +31-88-478 6332 1609 Germiston, Johannesburg Tel.: +44-1525-850000
E-mail: info_gnl@grundfos.com Tel.: (+27) 10 248 6000 Fax: +44-1525-850011
Fax: (+27) 10 248 6002
New Zealand E-mail: lgradidge@grundfos.com U.S.A.
GRUNDFOS Pumps NZ Ltd. Global Headquarters for WU
17 Beatrice Tinsley Crescent
Spain 856 Koomey Road
North Harbour Industrial Estate Bombas GRUNDFOS España S.A. Brookshire, Texas 77423 USA
Albany, Auckland Camino de la Fuentecilla, s/n Phone: +1-630-236-5500
Tel.: +64-9-415 3240 E-28110 Algete (Madrid)
Fax: +64-9-415 3250 Tel.: +34-91-848 8800 Uzbekistan
Fax: +34-91-628 0465 Grundfos Tashkent, Uzbekistan
Norway The Representative Office of Grundfos
GRUNDFOS Pumper A/S
Sweden Kazakhstan in Uzbekistan
Strømsveien 344 GRUNDFOS AB 38a, Oybek street, Tashkent
Postboks 235, Leirdal Box 333 (Lunnagårdsgatan 6) Tel.: (+998) 71 150 3290 / 71 150 3291
N-1011 Oslo 431 24 Mölndal Fax: (+998) 71 150 3292
Tel.: +47-22 90 47 00 Tel.: +46 31 332 23 000
Fax: +47-22 32 21 50 Fax: +46 31 331 94 60

Poland Switzerland
GRUNDFOS Pompy Sp. z o.o. GRUNDFOS Pumpen AG
ul. Klonowa 23 Bruggacherstrasse 10
Baranowo k. Poznania CH-8117 Fällanden/ZH
PL-62-081 Przeźmierowo Tel.: +41-44-806 8111
Tel.: (+48-61) 650 13 00 Fax: +41-44-806 8115
Fax: (+48-61) 650 13 50 Taiwan
Portugal GRUNDFOS Pumps (Taiwan) Ltd.
Bombas GRUNDFOS Portugal, S.A. 7 Floor, 219 Min-Chuan Road
Rua Calvet de Magalhães, 241 Taichung, Taiwan, R.O.C.
Apartado 1079 Tel.: +886-4-2305 0868
P-2770-153 Paço de Arcos Fax: +886-4-2305 0878
Tel.: +351-21-440 76 00 Thailand
Fax: +351-21-440 76 90 GRUNDFOS (Thailand) Ltd.
Romania 92 Chaloem Phrakiat Rama 9 Road
GRUNDFOS Pompe România SRL Dokmai, Pravej, Bangkok 10250
S-PARK BUSINESS CENTER, Clădirea Tel.: +66-2-725 8999
A2, etaj 2 Fax: +66-2-725 8998
Str. Tipografilor, Nr. 11-15, Sector 1, Cod
013714
Bucuresti, Romania
Tel.: 004 021 2004 100
E-mail: romania@grundfos.ro
 96160909
ECM: 1387260

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11.2024
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