Grundfos DWK User manual

DWK

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

Table of contents

DWK

English (GB)

Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

eština (CZ)

Montážní a provozní návod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Deutsch (DE)

Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Español (ES)

Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . 47

Français (FR)

Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Hrvatski (HR)

Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Magyar (HU)

Telepítési és üzemeltetési utasítás. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Italiano (IT)

Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Polski (PL)

Instrukcja montau i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Português (PT)

Instruções de instalação e funcionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Român(RO)

Instruciuni de instalare i utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Srpski (RS)

Uputstvo za instalaciju i rad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

 (RU)

,     . . . . . . . . . . . . . . . . . . 173

Slovensko (SI)

Navodila za montažo in obratovanje. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Slovenina (SK)

Návod na montáž a prevádzku . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Türkçe (TR)

Montaj ve kullanım kılavuzu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

中文 (CN)

安装和使用说明书. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

한국어 (KO)

설치 및 작동 지침 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .243

Table of contents

DWK

Bahasa Indonesia (ID)

Petunjuk pengoperasian dan pemasangan . . . . . . . . . . . . . . . . . . . . . . . . . . 256

(AR)

   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284

Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

Declaration of conformity EAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290

English (GB)

English (GB) Installation and operating instructions

Original installation and operating instructions

CONTENTS

Page

1. Symbols used in this document

2. General description

To ensure reliable and optimum operation, Grundfos

dewatering pumps, type DWK, are designed with two

types of impeller:

• 0.75 - 15 kW models have semi-open impeller

• 22 and 90 kW models have enclosed impeller.

DWK pumps are used for removal of surface and

underground water in small and medium systems.

DWK pumps can be controlled via the pump

controllers GU01 and GU02. For further information,

see data sheet for GU01/GU02 module at

www.grundfos.com.

1. Symbols used in this document 5

2. General description 5

3. Operating conditions 6

4. Applications 7

5. Safety 7

6. Transportation and storage 7

6.1 Transportation 7

6.2 Storage 8

7. Nameplate 8

8. Approvals 9

9. Type key 9

10. Installation 10

10.1 Free-standing submerged installation 10

11. Electrical connection 11

11.1 Pump controllers 13

11.2 GU01 and GU02 13

11.3 Frequency converter operation 13

12. Startup 14

12.1 Direction of rotation 14

13. Operation 15

14. Maintenance, inspection and overhaul 15

14.1 Maintenance 15

14.2 Inspection 16

14.3 Overhaul 16

15. Fault finding 17

16. Service 18

16.1 Service documentation 18

16.2 Contaminated pumps 18

17. Disposal 18

Warning

Prior to installation, read these installation

and operating instructions. Installation and

operation must comply with local

regulations and accepted codes of good

practice.

Warning

If these safety instructions are not

observed, it may result in personal injury.

Warning

If these instructions are not observed, it

may lead to electric shock with consequent

risk of serious personal injury or death.

Caution

If these safety instructions are not

observed, it may result in malfunction or

damage to the equipment.

Note

Notes or instructions that make the job

easier and ensure safe operation.

English (GB)

3. Operating conditions

The DWK pump range is suitable for two operating

modes:

• continuous, submerged operation, S1, with

minimum liquid level above the pump

• intermittent operation, S3, with the pump partly

submerged. See fig. 1.

Fig. 1 Liquid level

pH value

DWK pumps in permanent installations can cope

with pH values ranging from 4 to 10.

Liquid temperature

0 to 40 °C.

Density of pumped liquid

Maximum 1000 kg/m3.

In the case of higher values, contact Grundfos.

Installation depth

Maximum 25 metres below liquid level.

Operating pattern

DWK.O: Maximum 30 starts per hour.

DWK.E: Maximum 18 starts per hour.

Fig. 2 DWK pump

TM04 4142 0909

TM04 4143 0909

Pos. Description

1 Lifting bracket

2 Nameplate

3Motor

4 Oil plug

5 Outlet flange/hose connection

6 Cable entry

7 Top cover

8 Inlet strainer

9 Pump housing

English (GB)

4. Applications

DWK pumps are designed for pumping these liquids:

• underground water

• drainage water

• water containing abrasives such as sand and

gravel.

The pumps are ideal for pumping the above liquids

from installations in or near these places:

• construction sites

• tunnels

• quarries

• fish ponds

• basements

• drain water collecting tanks.

5. Safety

All persons involved must wear appropriate personal

protective equipment and clothing, and all work on

and near the pump must be carried out under strict

observance of the hygiene regulations in force.

6. Transportation and storage

6.1 Transportation

The pump can be transported in a vertical or

horizontal position. Make sure that it cannot roll or

fall over.

Always lift the pump by its lifting bracket, never by

the motor cable or the hose/pipe.

Warning

Pump installation in tanks must be carried

out by specially trained persons.

Work in or near tanks must be carried out

according to local regulations.

Pump type Weight [kg]

DWK O 6.50.075. 39

DWK O.6.50.15 41

DWK O.6.80.15 41

DWK O.6.50.22 45

DWK O.6.80.22 45

DWK O.10.80.37 80.5

DWK.O.10.100.37 80.5

DWK.O.13.80.55 110

DWK.O.13.100.55 110

DWK.O.13.100.75 156

DWK.O.13.150.75 156

DWK.O.13.100.110 189.5

DWK.O.13.150.110 189.5

DWK.O.13.100.150 194.5

DWK.O.13.150.150 194.5

DWK.E.10.100.220 420

DWK.E.10.150.220 427

DWK.E.10.150.300 452

DWK.E.10.200.300 462

DWK.E.10.150.370 839

DWK.E.10.200.370 841

DWK.E.10.150.450 858

DWK.E.10.200.450 860

DWK.E.10.150.550 920

DWK.E.10.200.550 923

DWK.E.10.200.750 973

DWK.E.10.200.900 1028

English (GB)

6.2 Storage

6.2.1 Warehouse storage

• The warehouse must be free from excessive

humidity, corrosive gases, vapours or vibrations

which might damage the pumps.

• Store the pumps in a vertical position on a pallet

or stand to keep the pump off the floor and

facilitate easy removal.

• Coil up the cable, and seal the open end tightly

with waterproof plastic and tape or a cable cap.

Do this to prevent moisture from penetrating into

the motor which will cause severe damage to the

windings.

• Give all unpainted surfaces a light coat of oil or

grease to prevent corrosion.

• If new pumps are stored for more than two

months, turn the impeller by hand every two

months to prevent the mechanical seal faces

from seizing up. Failure to do this may result in

seal damage when the pump is started up again.

6.2.2 Storage in the tank

• If an installed pump is not in operation for a long

time, check the insulation resistance and run the

pump for 30 minutes every month. If the pump

cannot be run due to lack of water in the tank,

inspect the pump and turn the impeller by hand

each month and prior to putting the pump back

into service. If the insulation resistance drops

below 10 megohms, contact Grundfos.

• When the pump is not in service, disconnect the

power supply from the control panel.

• If the pump is disconnected from the control

panel when not in service, protect the cable end

as described in section 6.2.1 Warehouse

storage.

7. Nameplate

The nameplate is fitted to the top cover of the pump.

Fix the extra nameplate supplied with the pump at

the installation site or keep it in the cover of this

booklet.

Fig. 3 Nameplate

TM04 4093 0709

Pos. Description

1 Notified body

2 Type designation

3 Product number and serial number

4 Maximum head [m]

5 Enclosure class

6 Maximum installation depth [m]

7 Number of phases

8 Frequency [Hz]

9 Speed [min-1]

10 Weight

11 Rated voltage [V] Star

12 Rated voltage [V] Delta

13 Insulation class

14 Rated current [A] Star

15 Rated current [A] Delta

16 Motor input power P1 [kW]

17 Motor output power P2 [kW]

18 Power factor

19 Maximum liquid temperature [°C]

20 Maximum flow [m3/h]

21 Production code (year/week)

10 11 12 13 14 15

DK-8850 Bjerringbro Denmark

Type

Model

Hmax Qmax Tmax. :

P.c.

m l/s c

P,3,QVXOFODVV&RVĭ

96883812

Made in China

Motor ~ Hz P1/P2 kW

n min

-1

Weight kg A

English (GB)

8. Approvals

The standard version of DWK pumps has been

tested by TÜV, in relation to EC Council Directive 98/

37/EC Machinery, registration no. AM 5014341 3

0001 and report no. 13009106 001.

9. Type key

The pump can be identified by the type designation

stated on the pump nameplate. See section

7. Nameplate.

* Exception: Code 075 = 0.75 kW

Code Example DWK .O .6 .50 .075 .S .5 .0D .R

DWK Dewatering pump

Semi-open impeller

Enclosed impeller

Strainer hole size:

Maximum solids size [mm]

Pump outlet:

Nominal diameter of pump outlet port [mm]

075

Code for output power, P2:

P2*: Code number from type designation / 10 [kW]

Equipment:

Standard

Sensor

Frequency:

50 Hz

60 Hz

Voltage and starting method:

380-415 V, DOL

380-415 V, Y/D

220-240 V, DOL

220-240 V, Y/D

[ ]

Material in pump

Standard

Cast iron pump with high-chrome stainless steel impeller and stainless steel inlet strainer

English (GB)

10. Installation

Check these points before beginning installation

procedures:

• Does the pump correspond to order.

• Is the pump suitable for the supply voltage and

frequency available at the installation site.

• Are accessories and other equipment

undamaged during transportation.

Prior to installation, check the oil level in the oil

chamber. See section 14. Maintenance, inspection

and overhaul.

The DWK pumps can be installed with a hose or

pipe.

10.1 Free-standing submerged installation

Pumps for free-standing submerged installation can

stand freely on the bottom of the tank or the like.

Fit a flexible union or coupling to the outlet port in

order to facilitate service on the pump and easy

separation of pump and outlet line.

If a hose is used, make sure that the hose does not

buckle and that the inside diameter of the hose

matches that of the pump outlet port.

If a rigid pipe is used, fit the union or coupling, non-

return valve and isolating valve in the order

mentioned when viewed from the pump.

If the pump is installed in muddy conditions or on

uneven ground, we recommend that you support the

pump on bricks or a similar support.

Installation procedure

1. Lower the pump into the liquid by means of a

chain secured to the lifting bracket of the pump.

We recommend that you place the pump on a

plane, solid foundation. Make sure that the pump

stands securely.

2. Hang up the end of the chain on a suitable hook

at the top of the tank and in such a way that the

chain cannot come into contact with the pump

housing.

3. Adjust the length of the motor cable by coiling it

up on a relief fitting to ensure that the cable is not

damaged during operation. Fasten the relief

fitting to a suitable hook. Make sure that the

cable is not sharply bent or pinched.

4. Connect the motor cable.

Fig. 4 Free-standing pump on strainer

Warning

Observe all safety regulations at the

installation site.

Use blowers for fresh-air supply to the

tank.

Warning

Make sure that the lifting bracket is

tightened before attempting to lift the

pump. Tighten if necessary. Carelessness

during lifting or transportation may cause

injury to persons or damage to the pump.

Warning

Before beginning the installation, switch off

the power supply and lock the mains

switch in position 0 with a padlock to

ensure that the power supply cannot be

accidentally switched on.

Switch off any external voltage connected

to the pump before working on the pump.

Caution

The pumps are designed for operation in

vertical position only.

TM04 4144 0909

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