Grundfos SQ User manual

SQ, SQE

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

Other languages

http://net.grundfos.com/qr/i/96160909

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

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)

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)

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)

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

English (GB)

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)

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

Pressure switch

English (GB)

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]

[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.

156

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