Grundfos DWK User manual

DWK
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

2

3
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
4
DWK
Bahasa Indonesia (ID)
Petunjuk pengoperasian dan pemasangan . . . . . . . . . . . . . . . . . . . . . . . . . . 256
(AR)
   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Declaration of conformity EAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290

English (GB)
5
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)
6
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
S1
S3
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)
7
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)
8
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)
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
16
17
18
19
20
21
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
A
V
V

English (GB)
9
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
O
E
Semi-open impeller
Enclosed impeller
6
Strainer hole size:
Maximum solids size [mm]
50
Pump outlet:
Nominal diameter of pump outlet port [mm]
075
Code for output power, P2:
P2*: Code number from type designation / 10 [kW]
-
S
Equipment:
Standard
Sensor
5
6
Frequency:
50 Hz
60 Hz
0D
1D
0E
1E
Voltage and starting method:
380-415 V, DOL
380-415 V, Y/D
220-240 V, DOL
220-240 V, Y/D
[ ]
R
Material in pump
Standard
Cast iron pump with high-chrome stainless steel impeller and stainless steel inlet strainer

English (GB)
10
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