Grundfos DWK User manual

DWK
Installation and operating instructions
QR97515233
Installation and operating instructions
(all available languages)
http://net.grundfos.com/qr/i/97515233
GRUNDFOS INSTRUCTIONS

DWK
English (GB)
Installation and operating instructions ..................................5
Čeština (CZ)
Montážní a provozní návod ........................................23
Deutsch (DE)
Montage- und Betriebsanleitung .....................................42
Dansk (DK)
Monterings- og driftsinstruktion ......................................65
Español (ES)
Instrucciones de instalación y funcionamiento............................83
Français (FR)
Notice d'installation et de fonctionnement..............................103
Hrvatski (HR)
Montažne i pogonske upute .......................................123
Magyar (HU)
Telepítési és üzemeltetési utasítás ..................................141
Italiano (IT)
Istruzioni di installazione e funzionamento .............................160
Lietuviškai (LT)
Įrengimo ir naudojimo instrukcija ....................................182
Polski (PL)
Instrukcja montażu i eksploatacji....................................200
Português (PT)
Instruções de instalação e funcionamento .............................220
Română (RO)
Instrucţiuni de instalare şi utilizare...................................241
Srpski (RS)
Uputstvo za instalaciju i rad .......................................260
Slovensko (SI)
Navodila za montažo in obratovanje .................................278
Slovenčina (SK)
Návod na montáž a prevádzku .....................................296
Türkçe (TR)
Montaj ve kullanım kılavuzu .......................................315
3
Table of contents

中文 (CN)
安装和使用说明书 ..............................................333
한국어 (KO)
설치 및 작동 지침 ..............................................349
Bahasa Indonesia (ID)
Petunjuk pengoperasian dan pemasangan.............................367
(AR) ةيبرعلا
    .............................................386
Appendix A..................................................403
4DWK
Table of contents

English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. General information ............. 6
1.1 Hazard statements .............. 6
1.2 Notes ..................... 6
1.3 Target group.................. 6
2. Product introduction ............ 7
2.1 Product description .............. 7
2.2 Intended use ................. 7
2.3 Pumped liquids ................ 7
2.4 Identification.................. 7
3. Receiving the product............ 9
3.1 Transporting the product ........... 9
3.2 Handling and lifting the product ....... 9
4. Mechanical installation ...........10
4.1 Installation requirements ...........10
4.2 Free-standing installation ...........11
5. Electrical connection ............12
5.1 Wiring diagram ................13
5.2 Frequency converter operation ........14
5.3 Thermal protection ..............14
5.4 Pump controllers ...............14
6. Preparations before startup ........16
6.1 Startup.....................16
6.2 Operating modes ...............16
6.3 Checking the direction of rotation ......18
7. Maintenance and service ..........18
7.1 Maintenance schedule ............18
7.2 Oil check and change.............19
7.3 Contaminated pumps .............19
8. Storing the product .............20
9. Fault finding .................20
9.1 The motor does not start, the fuses blow
or the motor protector trips out
immediately ..................20
9.2 The pump operates but the motor
protector trips after a short while .......21
9.3 The thermal switch of the pump trips after
a short while..................21
9.4 The pump operates at below-standard
performance and power consumption ....21
9.5 The pump operates, but gives no liquid . ..21
9.6 The pump is clogged .............21
10. Technical data ................21
10.1 Operating conditions .............21
11. Disposing of the product ..........22
12. Document quality feedback ........22
5
English (GB)

1. General information
Read this document before you install the
product. Installation and operation must
comply with local regulations and accepted
codes of good practice.
1.1 Hazard statements
The symbols and hazard statements below may
appear in Grundfos installation and operating
instructions, safety instructions and service
instructions.
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.
The hazard statements are structured in the following
way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
1.2 Notes
The symbols and notes below may appear in
Grundfos installation and operating instructions,
safety instructions and service instructions.
Observe these instructions for explosion-
proof products.
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.
1.3 Target group
These installation and operating instructions are
intended for professional installers.
6
English (GB)

2. Product introduction
2.1 Product description
The pumps are designed with enclosed or semi-open
impeller for use in a wide range of applications in
industrial and construction building sites.
All pumps are supplied with a 10 m cable and a free
cable end.
1
5
7
2
8
6
3
9
4
TM044143
DWK pump
Pos. Description
1Lifting bracket
2Nameplate
3Motor
4Oil plug
5Outlet flange or hose connection
6Cable inlet
7Top cover
8Inlet strainer
9Pump housing
2.2 Intended use
The pumps are designed for pumping surface,
drainage and underground water containing
abrasives, such as sand or gravel.
2.3 Pumped liquids
The pumps are designed for transferring the following
liquids:
• underground water
• drainage- and surface water.
2.4 Identification
2.4.1 Nameplate
Fix the extra nameplate supplied with the product at
the installation site or production location, so the data
can be checked when necessary. Make sure that the
nameplate is visible.
The nameplate is fitted to the top cover of the pump.
IP68
Type:
Model:
Hmax:
Motor:
n:
Weight:
Qmax:
Insul.class:
P1/P2:
Y
Tmax.:
CosΦ :
P.c.:
2
3
6
10
13
1
5
9
12
15
18
32
16 11 14 17
7 4 8
99657184
U.K Importer:
Grundfos Pumps ltd.
Grovebury Road
Leighton Buzzard
Bedfordshire LU74TL
TM044365
Nameplate on product
1
2
32
3
10
22
13
14
17
11
16
8
7
6
4
5
12
9
15
18
20
21
TM1040583
Nameplate in packaging
7
English (GB)

1
2
32
3
10
22
13
14
17
11
24 25
7
6
4
5
12
9
15
18
20
21
23
16
TM1040582
Nameplate for products in China
Pos. Description
1 Type designation
2 Material No. + Serial No.
3 Maximum head [m]
4 Maximum flow [l/s]
5 Maximum liquid temperature [°C]
6 Maximum installation depth [m]
7 Enclosure class
8 Insulation class/temperature class
9 Power factor
10 Number of phases
11 Frequency [Hz]
12 Motor input and output power P1/P2 [kW]
13 Speed [rpm]
14 Rated voltage [V] (delta connection)
15 Rated current [A] (delta connection)
16 Weight [kg]
17 Rated voltage [V] (star connection)
18 Rated current [A] (star connection)
20 Duty point Q [m3/h]
21 Duty point H [m]
22 Size of flange
23 Temperature rise [K]
24 Product type
25 Company standard
32 Production code (year and week)
2.4.2 Type key
The pump can be identified by the type designation
stated on the nameplate.
Example: DWK.O.6.50.15.5.0D.R
Code Description Explanation
DWK Dewatering pump Pump type
O Semi-open impeller
Impeller typeE Enclosed impeller
H High-head, double impeller
6 Maximum solids size [mm] Strainer hole size
50 Nominal diameter of pump
outlet [mm] Pump outlet
15 Output power P2 15 = 1.5
kW 1) Power [kW]
[ ] Standard Equipment
5 50 Hz Frequency [Hz]
6 60 Hz
0D 380-415 V, DOL
Voltage and starting
method
1D 380-415 V, Y/D
0E 220-240 V, DOL
1E 220-240 V, Y/D
[ ] Standard Pump version
RCast iron 2)
Z Custom-built variant Customisation
1) Exception: Code 075 = 0.75 kW.
2) Pump with high-chrome stainless steel impeller and
stainless steel inlet strainer.
8
English (GB)

3. Receiving the product
The product is supplied in proper packing in which it
must remain until it is to be installed.
Make sure that the product cannot roll or
fall over.
If the product is not installed immediately, the free end
of the power cable or the sensor cables must be
protected from moisture, which could otherwise
penetrate into the motor windings. This must be done
as soon as the product is received.
Protect the cables by fitting a cable cap or by
wrapping the free end of the cable in plastic and
securing the plastic with strong waterproof tape.
3.1 Transporting the product
The pumps can be transported and stored in vertical
or horizontal position, except for the 0.75 - 15 kW
range which can only be transported and stored
vertically. Make sure that it cannot roll or fall over.
Make sure that the received product corresponds to
the order.
In case of damage or missing parts, inform the
transport company or the manufacturer immediately.
3.2 Handling and lifting the product
Use approved lifting equipment only.
The weight of the specific product is stated on the
nameplate.
WARNING
Crushing hazard
Death or serious personal injury
‐Do not work near or under suspended
loads.
‐The area below the lifted pump must
be clear of people and marked off.
WARNING
Crushing hazard
Death or serious personal injury
‐All lifting equipment must be rated for
the purpose and checked for damage
before lifting the product. The lifting
equipment rating must not be
exceeded.
CAUTION
Crushing hazard
Minor or moderate personal injury
‐Make sure that the pump cannot swing
during lifting.
‐Place the pump on a solid foundation.
‐Make sure that the pump cannot roll or
fall over.
WARNING
Crushing hazard
Minor or moderate personal injury
‐Before lifting the package, check the
centre of gravity marked on the box.
‐Always check the lifting bracket and
chain for corrosion or wear before
lifting.
‐Always lift the pump by its lifting
bracket or by a forklift truck.
‐Never lift the pump by the power cable,
hose or pipe.
‐Do not stack pump packages.
CAUTION
Crushing hazard
Minor or moderate personal injury
‐Make sure that the lifting bracket is
tightened before lifting the pump.
3.2.1 Correct lifting sequence
TM070306
Raising the pump to vertical position, step 1
TM070307
Raising the pump to vertical position, step 2
9
English (GB)

TM070308
Raising the pump to vertical position, step 3
Do not lift the pump by the brackets of the
motor.
TM070309
DWK motor bracket location
4. Mechanical installation
DWK pumps are suitable for free-standing installation
with a hose or flange connection on the top of the
motor. DWK.H pumps can be ordered with optional
auto coupling installation.
DANGER
Electric shock
Death or serious personal injury
‐Before installation, switch off the power
supply and lock the main switch in
position 0.
‐Before working on the pump, switch off
any external voltage connection.
DANGER
Electric shock
Death or serious personal injury
‐Before installation and the first startup,
check the power cable for
visible defects and measure the cable
resistance to avoid short circuits.
DANGER
Electric shock
Death or serious personal injury
‐Make sure that the earthing is
connected first.
4.1 Installation requirements
Before installation, check that the pump is suitable for
the supply voltage and frequency available at the
installation site.
Pump installation in pits must be carried
out by trained persons.
Make sure that there is enough fresh air in
the pit.
All work in pits must be supervised by a
person outside the pump pit.
DANGER
Electric shock
Death or serious personal injury
‐Before installation, switch off the power
supply and lock the mains switch in
position 0.
10
English (GB)