Grundfos SQ User manual

SQ, SQE
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
Other languages
http://net.grundfos.com/qr/i/96160909

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3
Table of contents
SQ, SQE
English (GB)
Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
 (BG)
   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
eština (CZ)
Montážní a provozní návod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Deutsch (DE)
Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Dansk (DK)
Monterings- og driftsinstruktion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Eesti (EE)
Paigaldus- ja kasutusjuhend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Español (ES)
Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . 95
Suomi (FI)
Asennus- ja käyttöohjeet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Français (FR)
Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
 (GR)
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Hrvatski (HR)
Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Magyar (HU)
Telepítési és üzemeltetési utasítás. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Italiano (IT)
Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Lietuviškai (LT)
rengimo ir naudojimo instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Latviešu (LV)
Uzstdšanas un ekspluatcijas instrukcija. . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Nederlands (NL)
Installatie- en bedieningsinstructies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Polski (PL)
Instrukcja montau i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Português (PT)
Instruções de instalação e funcionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Table of contents
4
SQ, SQE
Român(RO)
Instruciuni de instalare i utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
 (RU)
,     . . . . . . . . . . . . . . . . . . 290
Svenska (SE)
Monterings- och driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Slovensko (SI)
Navodila za montažo in obratovanje. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Slovenina (SK)
Návod na montáž a prevádzku . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Türkçe (TR)
Montaj ve kullanım kılavuzu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Bahasa Indonesia (ID)
Petunjuk pengoperasian dan pemasangan . . . . . . . . . . . . . . . . . . . . . . . . . . 367
 (KZ)
   . . . . . . . . . . . . . . . . . . . . . . . . . . . 382
(AR)
   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412

English (GB)
5
English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. Symbols used in this document
1. Symbols used in this document 5
2. General 6
2.1 Applications 6
3. Technical data 7
3.1 Storage 7
3.2 Sound pressure level 7
4. Preparation 7
4.1 Refilling of motor liquid 7
4.2 Positional requirements 8
4.3 Liquid temperatures/cooling 8
5. Electrical connection 9
5.1 General 9
5.2 Motor protection 9
5.3 Connection of motor 9
6. Installation 10
6.1 General 10
6.2 Assembly of pump part and motor 10
6.3 Removal of non-return valve 10
6.4 Fitting the cable plug to the motor 11
6.5 Fitting the cable guard 11
6.6 Cable sizing 12
6.7 Fitting the submersible drop cable 13
6.8 Pipework connection 13
7. Start-up 14
8. Operation 14
8.1 Minimum flow rate 14
8.2 Selection of diaphragm tank and setting
of precharge pressure and pressure
switch 14
8.3 Well system pressure overload 15
8.4 Built-in protection 16
9. Maintenance and service 16
9.1 Contaminated pumps 16
10. Fault finding chart 17
10.1 Megging 18
11. Checking the power supply 19
12. Environment 19
13. Disposal 19
Prior to installation, read this document.
Installation and operation must comply
with local regulations and accepted codes
of good practice.
This appliance can be used by children
aged from 8 years and above and persons
with reduced physical, sensory or mental
capabilities or lack of experience and
knowledge if they have been given
supervision or instruction concerning use
of the appliance in a safe way and
understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not
be made by children without supervision.
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
personal injury.
WARNING
Indicates a hazardous situation which, if
not avoided, could result in death or
serious personal injury.
CAUTION
Indicates a hazardous situation which, if
not avoided, could result in minor or
moderate personal injury.

English (GB)
6
The text accompanying the three hazard symbols
DANGER, WARNING and CAUTION is structured in
the following way:
2. General
On page 412 of these installation and operating
instructions, you will find copies of the pump and
motor nameplates.
Before the SQ/SQE pump is lowered into the
borehole, this page should be filled in with the
relevant nameplate data.
These installation and operating instructions must be
kept in a dry place near the installation site for
reference purposes.
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
– small waterworks
– irrigation systems in for instance green houses.
• Liquid transfer in tanks.
• Pressure boosting.
The SQE-NE pumps are designed for pumping thin,
clean, non-explosive liquids, not containing solid
particles or fibres.
These pumps are suitable for pumping contaminated
or hydrogen-carbonate containing groundwater, e.g.
from
• dumps
• chemical depots
• industrial areas
• oil and petrol filling stations
• environmental applications.
The SQE-NE pumps can also be used for sampling
and monitoring and to some extent for incorporation
in water treatment systems.
Information applying to all pump types
The maximum sand content of the water must not
exceed 50 g/m3. A larger sand content will reduce
the life of the pump and increase the risk of blocking.
pH values
SQ and SQE: 5 to 9.
SQE-NE: Please contact Grundfos.
Liquid temperature
The temperature of the pumped liquid must not
exceed 35 °C.
SIGNAL WORD
Description of hazard
Consequence of ignoring the warning.
- Action to avoid the hazard.
A blue or grey circle with a white graphical
symbol indicates that an action must be
taken.
A red or grey circle with a diagonal bar,
possibly with a black graphical symbol,
indicates that an action must not be taken
or must be stopped.
If these instructions are not observed, it
may result in malfunction or damage to the
equipment.
Tips and advice that make the work easier.
WARNING
Electric shock
Death or serious personal injury
- The pump must not be used when
people are in the water. If liquids with a viscosity higher than that of
water are to be pumped, please contact
Grundfos.

English (GB)
7
3. Technical data
Supply voltage
1 x 200-240 V - 10 %/+ 6 %, 50/60 Hz, PE.
Operation via generator: As a minimum, the
generator output must be equal to the motor P1 [kW]
+ 10 %.
Starting current
The motor starting current is equal to the highest
value stated on the motor nameplate.
Power factor
PF 1 =.
Motor liquid
Type SML 3.
Motor cable
1.5 m, 3 x 1.5 mm2, PE.
Liquid temperature
Maximum 35 °C.
Pump outlet size
SQ 1, SQ 2, SQ 3: Rp 1 1/4.
SQ 5, SQ 7: Rp 1 1/2.
Pump diameter
74 mm.
Borehole diameter
Minimum 76 mm.
Installation depth
Maximum 150 m below static water level.
See also section 6.8.2 Installation depths.
Net weight
Maximum 6.5 kg.
3.1 Storage
Storage temperature: -20 °C to +60 °C.
3.1.1 Frost protection
If the pump has to be stored after use, it must be
stored on a frost-free location or it must be ensured
that the motor liquid is frost-proof.
The motor must not be stored without being filled
with motor liquid.
3.2 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.
4. Preparation
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.
The level of motor liquid is decisive for the operating
life of the bearings and consequently the life of the
motor.
4.1 Refilling of motor liquid
If for any reason the motor liquid has been drained or
lost, the motor must be refilled with Grundfos motor
liquid SML 3.
To refill the motor, proceed as follows:
1. Remove the cable guard and separate the pump
part from the motor.
Fig. 1
2. Place the motor in vertical position with an
inclination of approx. 10 °.
3. Remove the filling plug using a screwdriver or
a similar tool.
4. Inject motor liquid into the motor with a filling
syringe or the like.
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 pump part and motor.
8. Refit the cable guard.
The pump is now ready for installation.
TM02 9606 3504
10

English (GB)
8
4.2 Positional requirements
The pump is suitable for vertical as well as horizontal
installation, however, the pump shaft must never fall
below the horizontal plane. See fig. 2.
Fig. 2
If the pump is to be installed horizontally, e.g. in a
tank, and there is a risk that the pump might be
covered by mud, it must be fitted in a flow sleeve.
For installation depths, see section 6.8.2 Installation
depths.
4.3 Liquid temperatures/cooling
Figure 3shows an SQ/SQE pump installed in a
borehole. The pump is operating.
Figure 3illustrates the following:
• borehole diameter
• pump diameter
• temperature of pumped liquid
• flow past the motor to the pump suction strainer.
Fig. 3
To ensure sufficient cooling of the motor, it is
important to observe the maximum liquid
temperature of 35 °C under all conditions.
The motor should always be installed above the well
screen. If a flow sleeve is used, the pump may be
installed freely in the borehole.
If the actual temperature of the pumped liquid
exceeds the specified value or the operating
conditions otherwise fall outside the specified
conditions, the pump may stop. Please contact
Grundfos.
TM01 1375 4397
Allowed
Not allowed
TM01 0518 1297
The borehole diameter must be at least
76 mm (approx. 3").
Do not let the pump run against a closed
discharge pipe for more than 5 minutes.
When the discharge pipe is closed, there
is no cooling flow and there is a risk of
overtemperature in motor and pump.
Liquid
temperature
Borehole
diameter
Pump
diameter

English (GB)
9
5. Electrical connection
5.1 General
The electrical connection should be carried out by an
authorised electrician in accordance with local
regulations.
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 %/
+ 6 % of the nominal voltage during continuous
operation (including variation in the supply voltage
and losses in cables).
The earth leakage circuit breaker must be marked
with the following symbol: .
Supply voltage
1 x 200-240 V - 10 %/+ 6 %, 50/60 Hz, PE.
The current consumption can only be measured by
means of a true RMS instrument. If other instruments
are used, the value measured will differ from the
actual value.
On SQ/SQE pumps, a leakage current of 2.5 mA at
230 V, 50 Hz, can typically be measured. The
leakage current is proportional to the supply voltage.
The SQE and SQE-NE pumps can be connected to a
control box, type CU 300 or CU 301.
5.2 Motor protection
The motor incorporates thermal overload protection
and requires no additional motor protection.
5.3 Connection of motor
The motor incorporates a starter device and can
therefore be connected directly to the mains.
Start/stop of the pump will typically be done via a
pressure switch. See fig. 4.
Fig. 4
WARNING
Electric shock
Death or serious personal injury
- Before starting work on the pump, make
sure that the power supply has been
switched off and that it cannot be
accidentally switched on.
- The pump must be earthed.
- The pump must be connected to an
external mains switch with a minimum
contact gap of 3 mm in all poles.
- If the motor cable is damaged, it must
be replaced by Grundfos, an authorised
Grundfos service workshop or similarly
qualified persons to avoid a hazard.
WARNING
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 pump must never be connected to a
capacitor or to another type of control box
than CU 300 or CU 301.
The pump must never be connected to an
external frequency converter.
The pressure switch must be rated for the
maximum amps of the specific pump size.
TM01 1480 4697
NL
P
Pressure switch

English (GB)
10
6. Installation
6.1 General
The loose data plate supplied with the pump should
be fixed close to the installation site.
6.2 Assembly of pump part and motor
To assemble pump part and motor, proceed as
follows:
1. Place the motor horizontally in a vice and tighten
it. See fig. 6.
2. Pull the pump shaft out to the position shown in
fig. 5.
Fig. 5
3. Grease the motor shaft end with the grease
supplied with the motor.
4. Screw the pump part on the motor (55 Nm).
Caution: The pump shaft must engage with the
motor shaft.
A spanner may be used on the clamping faces of
the pump part. See fig. 6.
Fig. 6
When pump part and motor have been assembled
correctly, there must not be a clearance between
pump part and motor.
6.3 Removal of non-return valve
If a pump without non-return valve is required, the
valve can be removed as follows:
1. Cut off the legs of the valve guide using side-
cutting pliers or a similar tool. See fig. 7.
2. Turn the pump upside down.
3. Check that all loose parts fall out of the pump.
Fig. 7
The non-return valve can be fitted in a Grundfos
service workshop.
WARNING
Electric shock
Death or serious personal injury
- Before starting any work on the pump/
motor, make sure that the power supply
has been switched off and that it cannot
be accidentally switched on.
Do not lower or lift the pump by means of
the motor cable.
TM02 8425 5203
TM01 2854 3804
Motor (P2)
[kW]
L
[mm]
0.70 120
1.15 102
1.55 84
1.85 66
TM01 4337 0199 TM01 4338 0199
SQE-NE is supplied without non-return
valve.
L
156