Grundfos DPK Series User manual

DPK, DPK.V
50 Hz
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

2

3
Table of contents
DPK, DPK.V
English (GB)
Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Čeština (CZ)
Montážní a provozní návod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Deutsch (DE)
Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Español (ES)
Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . 47
Hrvatski (HR)
Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Magyar (HU)
Telepítési és üzemeltetési utasítás. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Italiano (IT)
Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Lietuviškai (LT)
Įrengimo ir naudojimo instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Polski (PL)
Instrukcja montażu i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Português (PT)
Instruções de instalação e funcionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Română(RO)
Instrucţiuni de instalare şi utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Srpski (RS)
Uputstvo za instalaciju i rad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Русский (RU)
Паспорт, Руководство по монтажу иэксплуатации . . . . . . . . . . . . . . . . . . 173
Slovensko (SI)
Navodila za montažo in obratovanje. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Slovenčina (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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
한국어 (KO)
설치 및 작동 지침 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .245

Table of contents
4
DPK, DPK.V
Bahasa Indonesia (ID)
Petunjuk pengoperasian dan pemasangan . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Declaration of conformity EAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280

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
DPK pumps are available with various types of
impellers.
DPK drainage pump:
• 0.75 - 15 kW models have semi-open impeller
• 19 and 22 kW models have closed impeller.
DPK.V wastewater pump:
• 1.5 - 7.5 kW models have Super Vortex free-flow
impeller.
DPK pumps are used for removal of surface and
underground drainage water in buildings, courtyard
drainage systems and industrial applications where
water from various applications is collected into
drainage pits and then pumped further.
DPK.V pumps are used for more applications
including effluent and screened wastewater in similar
applications.
DPK and DPK.V 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
6.2.1 Warehouse storage 8
6.2.2 Storage in the tank 8
7. Nameplate 8
8. Approvals 9
9. Type key 9
10. Installation 10
10.1 Installation types 10
10.2 Submerged installation on auto coupling 10
10.3 Free-standing submerged installation 11
11. Electrical connection 12
11.1 Pump controllers 13
11.2 GU01 and GU02 13
11.3 Frequency converter operation 13
11.3.1 Recommendations 13
11.3.2 Possible consequences 13
12. Startup 14
12.1 Direction of rotation 14
13. Operation 15
14. Maintenance, inspection and overhaul 15
14.1 Maintenance 15
14.1.1 Current and voltage 15
14.1.2 Vibration 15
14.1.3 Outlet pressure and flow rate 15
14.1.4 Insulation resistance 15
14.2 Inspection 16
14.2.1 How to remove the pump 16
14.2.2 Inspection of seal sensor 16
14.2.3 Inspection of impeller and wear plate 16
14.3 Overhaul 16
15. Fault correction 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 DPK 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
DPK 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 densities, contact Grundfos.
Installation depth
Maximum 20 metres below liquid level.
Operating pattern
Maximum 30 starts per hour.
Fig. 2 DPK pump
Fig. 3 DPK.V pump
TM04 4124 0809
S1
S3
TM04 4092 0709TM06 5236 4115
Pos. Description
1 Lifting bracket
2 Nameplate
3Motor
4 Flush valve connection
5 Outlet flange
6 Cable entry
7 Top cover
8 Ring stand
9 Pump housing
1
6
7
9
8
2
3
5
4
1
2
6
7
3
5
9
8

English (GB)
7
4. Applications
DPK pumps are designed for pumping these liquids:
• drainage water
• surface water
• groundwater.
DPK.V pumps are designed for pumping:
• effluent
• screened wastewater.
The pumps are ideal for pumping the above liquids
from installations in or near these places:
• commercial buildings
• residential buildings
• courtyards
• farms
• industries
• underground car parks.
The pumps are suitable for both permanent and
temporary installation.
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]
DPK.10.50.075 31
DPK.10.50.15 35
DPK.10.80.22 40
DPK.15.80.37 60
DPK.15.80.55 113
DPK.15.100.75 118
DPK.20.100.110 166
DPK.20.100.150 177
DPK.20.150.190 312
DPK.20.150.220 312
DPK.V.65.80.15 76
DPK.V.65.80.22 83
DPK.V.80.80.37 116
DPK.V.80.80.55 121
DPK.V.80.80.75 130

English (GB)
8
6.2 Storage
6.2.1 Warehouse storage
• The warehouse must be dry and free from
corrosive gases, vapours or vibrations which
might damage the pump.
• Store the pump in a vertical position on a pallet or
a 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. 4 Nameplate
TM04 4093 1016
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 DPK pumps have been tested
by TÜV according to EC Council Machinery Directive
98/37/EC, 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 DPK. V 65. 80. 22. S. 4. .5 0D
DPK Drainage pump
.
V
Impeller design:
Semi-open impeller
Vortex impeller
65
Free passage:
Maximum solids size [mm]
80
Pump outlet:
Nominal diameter of pump outlet port [mm]
22
Code for output power, P2:
P2* = Code number from type designation / 10 [kW]
-
S
Equipment:
Standard
Sensor(s)
2
4
Motor pole:
2-pole motor
4-pole motor
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

English (GB)
10
10. Installation
Check these points before beginning installation
procedures:
• That the pump correspond to the order.
• That the pump is suitable for the supply voltage
and frequency available at the installation site.
• That the pump, accessories and other equipment
are undamaged during transportation
Prior to installation, check the oil level in the oil
chamber. See section 14. Maintenance, inspection
and overhaul.
The DPK pumps are suitable for different installation
types which are described in sections
10.2 Submerged installation on auto coupling and
10.3 Free-standing submerged installation.
All pump housings can be connected to JIS flange,
hose coupling and auto coupling.
10.1 Installation types
DPK pumps are suitable for two types of installation:
• submerged installation on auto-coupling
• free-standing submerged installation.
10.2 Submerged installation on auto
coupling
Pumps for permanent installation can be mounted on
a stationary auto-coupling guide rail system.
The auto-coupling system facilitates maintenance
and service as the pump can easily be lifted out of
the tank. See fig. 5.
Fig. 5 Submerged pump on auto-coupling
Installation procedure:
1. Fit the guide rail bracket on the inside of the tank
and fasten it provisionally with anchor bolts.
2. Place the auto-coupling base unit on the bottom
of the tank. Use a plumb line to establish the
correct positioning. Fasten with heavy-duty
expansion bolts. Support the auto-coupling base
unit so that it is level when being fastened.
3. Connect the outlet line without exposing it to
distortion or tension.
4. Insert the guide rails in the auto-coupling base
unit and adjust the length of the rails accurately
to the guide rail bracket.
5. Unscrew the provisionally fastened guide rail
bracket and fit it on top of the guide rails.
Fasten the bracket firmly to the tank wall.
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.
Any external voltage connected to the
pump must be switched off before working
on the pump.
Caution
The pumps are designed for operation in
vertical position only.
TM04 4094 0709

English (GB)
11
6. Clean out debris from the tank before lowering
the pump into the tank.
7. Fit the guide claw to the outlet port of the pump.
Then slide the guide claw down the guide rails
and lower the pump into the tank by means of a
chain fastened to the lifting bracket. When the
pump reaches the auto-coupling base unit, the
pump will automatically connect tightly.
8. 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.
9. 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 at the top of the tank.
Make sure that the cable is not sharply bent or
pinched.
10. Connect the motor cable
10.3 Free-standing submerged installation
Pumps for free-standing submerged installation can
stand freely on the bottom of the tank or the like.
The pump must be installed on a ring stand.
See fig. 6.
Fig. 6 Free-standing pump on ring stand
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. Fit a 90 ° elbow to the pump outlet port and
connect the outlet pipe/hose.
2. 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.
3. 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.
4. 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.
5. Connect the motor cable.
Note
The guide rails must not have any axial
play as this will cause noise during pump
operation.
TM04 4095 0709

English (GB)
12
11. Electrical connection
The electrical connection must be carried out in
accordance with local regulations.
The supply voltage and frequency are marked on the
pump nameplate. The voltage tolerance must be
within - 5 %/+ 5 % of the rated voltage. Make sure
that the motor is suitable for the power supply
available at the installation site.
All pumps are supplied with 10 m cable and a free
cable end.
Pumps with sensors must be connected to a GU01
or GU02 pump controller. See fig. 7for DOL-
connected pumps or fig. 8for star-delta-connected
pumps. For further information, see the installation
and operating instructions for the selected control
box or pump controller at www.grundfos.com.
Fig. 7 Wiring diagram, DOL starting
Fig. 8 Wiring diagram, star-delta starting
Warning
Before installation and the first startup of
the pump, check the condition of the cable
visually and measure the cable resistance
to avoid short circuits.
Warning
The pump must be connected to a mains
switch with a minimum contact gap of 3
mm in all poles.
The classification of the installation site
must be approved by the local fire-fighting
authorities in each individual case.
Grundfos control boxes, pump controllers
must not be installed in potentially
explosive environments.
Make sure that all protective equipment
has been connected correctly.
TM04 4096 0709TM04 4097 0709

English (GB)
13
11.1 Pump controllers
The pumps must be connected to a control box with
a motor protection relay with IEC trip class 10 or 15.
The pumps can be controlled by the following LC and
LCD pump controllers:
• LC 107, LCD 107 with air bells
• LC 108, LCD 108 with float switches
• LC 110, LCD 110 with water level electrodes.
LC controllers are for single-pump installations.
LCD controllers are for two-pump installations.
In the following description, "level switch" can be air
bells, float switches or water level electrodes,
depending on the pump controller selected.
The LC controller is fitted with two or three level
switches: One for start and one for stop of pump.
The third level switch, which is optional, is for high-
level alarm.
The LCD controller is fitted with three or four level
switches: One for common stop and two for start of
the pumps. The fourth level switch, which is optional,
is for high-level alarm.
For further information, see the installation and
operating instructions for the pump controller
selected.
Fig. 9 Pump controllers
11.2 GU01 and GU02
GU01 is a monitoring device for monitoring the stator
temperature and water penetration into the motor.
It receives a digital signal.
GU02 is a monitoring device for monitoring stator
and bearing temperature as well as water
penetration into the motor. It receives an analog
signal.
Both monitoring devices must be connected to the
control panel via a relay.
GU01 and GU02 are manufactured for Grundfos.
For further information, please contact your local
Grundfos company.
11.3 Frequency converter operation
11.3.1 Recommendations
Before installing a frequency converter, calculate the
lowest allowable frequency in the installation in order
to avoid zero flow.
• Do not reduce the motor speed to less than 30 %
of rated speed.
• Keep the flow velocity above 1 m/sec.
• Let the pump run at rated speed at least once a
day in order to prevent sedimentation in the
piping system.
• Do not exceed the frequency indicated on the
nameplate. In this case there is risk of motor
overload.
• Keep the motor cable as short as possible.
The peak voltage will increase with the length of
the motor cable. See data sheet for the frequency
converter used.
• Use input and output filters on the frequency
converter. See data sheet for the frequency
converter used.
11.3.2 Possible consequences
When operating the pump via a frequency converter,
please be aware of these possible consequences:
• The locked-rotor torque will be lower. How much
lower will depend on the frequency converter
type. See the installation and operating
instructions for the frequency converter used for
information on the locked-rotor torque available.
• The working condition of bearings and shaft seal
may be affected. The possible effect will depend
on the application. The actual effect cannot be
predicted.
• The acoustic noise level may increase. See the
installation and operating instructions for the
frequency converter used for advice as to how to
reduce the acoustic noise.
TM04 4098 0709
S1
S3
E1 E2 E3
Min.
Max.
Max.
Min.

English (GB)
14
12. Startup
Procedure
1. Remove the pump from the system.
2. Check that the impeller can rotate freely. Turn the
impeller by hand.
3. Check the condition of the oil in the oil chamber.
See section 14.2.2 Inspection of seal sensor.
4. Check whether the monitoring units, if used, are
operating satisfactorily.
5. Check the setting of the level pickups, float
switches or electrodes.
6. Check the direction of rotation, see section
12.1 Direction of rotation.
7. Reinstall the pump in the system.
8. Switch on the electricity supply.
9. Open the isolating valves, if fitted.
10. Check that the motor is 2/3 covered with liquid.
If the liquid level is below that, add liquid to the
tank until the minimum level is reached.
11. Vent the pump by tilting it by means of the lifting
chain and let trapped air escape.
12. Let the pump run briefly, and check if the liquid
level is falling. A correctly vented pump will
quickly lower the liquid level.
13. Start the pump.
12.1 Direction of rotation
Check the direction of rotation in the following way
every time the pump is connected to a new
installation.
Procedure:
1. Let the pump hang from a lifting device, e.g. the
hoist used for lowering the pump into the tank.
2. Start and stop the pump while observing the
movement (jerk) of the pump. If connected
correctly, the impeller will rotate clockwise when
viewed from above. Consequently, when started,
the pump will jerk counter-clockwise. See fig. 10.
If the direction of rotation is wrong, interchange
any two phases in the power supply.
Fig. 10 Checking the direction of rotation
Warning
Before starting work on the pump, make
sure that the fuses have been removed or
the mains switch has been switched to off.
It must be ensured that the power supply
cannot be accidentally switched on.
Make sure that all protective equipment
has been connected correctly.
The pump must not run dry.
Caution
In case of abnormal noise or vibrations
from the pump or power/water supply
failure, stop the pump immediately.
Do not attempt to restart the pump until the
cause of the fault has been found and the
fault corrected.
Note
The pump may be started for a very short
period without being submerged in order to
check the direction of rotation.
TM04 4118 0809

English (GB)
15
13. Operation
S1, continuous operation:
In this operating mode, the pump can operate
continuously without being stopped for cooling.
See fig. 11. Being completely submerged, the pump
is sufficiently cooled by the surrounding liquid.
See also fig. 1.
Fig. 11 S1 continuous operation
S3, intermittent operation:
Operating mode S3 means that within 10 minutes the
pump must be in operation for 4 minutes and
stopped for 6 minutes. See fig. 12.
For this operating mode, the pump must be partly
submerged in the pumped liquid, i.e. the liquid level
must reach at least up to the middle of the motor
housing. See fig. 1.
Fig. 12 S3 intermittent operation
14. Maintenance, inspection and
overhaul
14.1 Maintenance
The life of the pump depends largely on the
operating conditions, so we strongly recommend
daily inspection and periodic servicing in order to
guarantee maximum product lifetime.
14.1.1 Current and voltage
Check the pump current and voltage. If the ammeter
reading exceeds the rated value, or is far lower than
the rated value, there is a problem. The voltage
should be stable within ± 5 % of the rated value
throughout the operational period.
14.1.2 Vibration
Check that the pump is operating smoothly and
without vibrations.
14.1.3 Outlet pressure and flow rate
Check the outlet pressure and flow rate
(if a flowmeter is available) at least once a month.
Declining performance can indicate the need for an
overhaul. Regardless of performance, the pressure
and flow rate should be stable, and rapidly changing
pressure or flow rate indicate system problems on
the inlet or outlet side.
14.1.4 Insulation resistance
Check the insulation resistance of the motor at least
once a month.
If the insulation resistance has declined sharply
since the previous reading, this is an indication of
impending insulation failure, and the pump should be
scheduled for service even though the insulation
resistance may still be over 10 megohms.
TM02 7776 4003TM04 2656 2808
P
t
10 min
P
t
4 min 6 min
Operation
Stop

English (GB)
16
14.2 Inspection
Under normal operating conditions, remove the
pump from the tank and inspect it once every year.
Under severe operating conditions where sand,
fibrous material and solids are involved, do this once
a month.
The standard inspection procedure is summarized
below.
14.2.1 How to remove the pump
1. Hook the lifting chain through the pump lifting
bracket and lift so that the chain just carries the
load of the pump.
2. Loosen the bolts/nuts of the outlet pipe to drain
away possible water in the pipe.
3. Remove the bolts/nuts of the outlet pipe, and lift
the pump out of the tank.
14.2.2 Inspection of seal sensor
Check the resistance of the seal sensor with a
multimeter as shown in fig. 13.
Fig. 13 Resistance check
Oil replacement
After checking the resistance of the seal sensor,
replace the oil in the oil chamber.
1. Unscrew the oil plug.
2. Tilt the pump with the oil filling hole pointing
downwards in order to drain the pump of oil. If the
drained oil is contaminated or opaque, this is an
indication of an impending mechanical shaft seal
failure. Replace the mechanical seal.
3. Fill fresh oil into the oil chamber through the oil
filling hole. Use lubrication oil ISO VG 32 Mobil
DTE 24 turbine oil 90 or equivalent.
14.2.3 Inspection of impeller and wear plate
Check the clearance between impeller and wear
plate. Recommended clearance is 0.3 - 0.5 mm.
Replace or repair as necessary.
14.3 Overhaul
Overhaul of pumps should be carried out by an
authorized Grundfos service centre.
A normal overhaul includes these points:
1. Disassemble and clean the pump.
2. Inspect and replace, if necessary, each
component.
3. Carry out electrical test of the motor.
4. Replace worn-out or damaged components.
5. Reassemble the pump.
6. Carry out performance and functional test of the
pump.
7. Repaint and pack the pump.
Caution
Do not use a megger as this will damage
the control circuit.
TM04 4119 0809
20 KΩ
TPTP
SS SS
Warning
When slackening the plug of the oil
chamber, note that pressure may have
built up in the chamber. Do not remove the
plug until the pressure has been fully
relieved.

English (GB)
17
15. Fault correction
Warning
Before starting work on the pump, make sure that the fuses have been removed or the mains switch
has been switched to off. It must be ensured that the power supply cannot be accidentally switched
on.
All rotating parts must have stopped moving.
Note
For pumps with sensor, start fault finding by checking the status on the GU01 or GU02 front panel.
See installation and operating instructions for GU01 or GU02.
Fault Cause Remedy
Motor does not start,
fuses blow or motor
protector trips out
immediately.
Caution: Do not try to
start again.
1. Supply failure; short-circuit;
earth-leakage fault in cable or
motor winding.
Have the cable and motor checked and
repaired by a qualified electrician.
2. Fuses blow due to use of wrong
type of fuse. Fit fuses of the correct type.
3. Impeller blocked by impurities. Clean the impeller.
4. Level pickup, float switch or
electrode out of adjustment or
defective.
Check the level pickups, float switches or
electrodes.
5. Motor phase malfunction Inspect motor and connections.
Pump operates, but
motor protector trips out
after a short while.
1. Low setting of thermal relay in
motor protector.
Set the relay in accordance with the
specifications on the pump nameplate.
2. Increased current consumption
due to large voltage drop.
Measure the voltage between two motor
phases. Tolerance: - 5 %/+ 5 %.
3. Impeller blocked by impurities. Clean the impeller.
4. Wrong direction of rotation. Check the direction of rotation and possibly
interchange any two phases in the power
supply. See section 12.1 Direction of
rotation.
The thermal switch of
the pump trips out after
a short while.
1. Too high liquid temperature.
Inadequate cooling.
Improve cooling or lower the liquid
temperature.
2. Too high viscosity of the
pumped liquid. Dilute the pumped liquid.
3. Fault in the electrical
connection.
(Y-connection of pump to
D-connection results in
considerable undervoltage)
Check and correct the electrical connection.
Pump operates at
below-standard
performance and power
consumption.
1. Impeller blocked by impurities. Clean the impeller.
2. Wrong direction of rotation. Check the direction of rotation and possibly
interchange any two phases in the power
supply. See section 12.1 Direction of
rotation.
Pump operates, but
gives no liquid.
1. Air in pump. Vent the pump twice.
2. Outlet valve closed or blocked. Check the outlet valve and possibly open
and/or clean.
3. Non-return valve blocked. Clean the non-return valve.
Pump clogged.
1. The liquid contains large
particles. Select a pump with a larger size of passage.
2. A float layer has formed on the
surface. Install a mixer in the tank.

English (GB)
18
16. Service
16.1 Service documentation
Service documentation is available on
www.grundfos.com > International website >
Grundfos Product Center > Service & support.
If you have any questions, please contact the
nearest Grundfos company or service workshop.
16.2 Contaminated pumps
If Grundfos is requested to service the pump,
Grundfos must be contacted with details about the
pumped liquid, etc. before the pump is returned for
service. Otherwise Grundfos can refuse to accept
the pump for service.
Possible costs of returning the pump are paid by the
customer.
However, any application for service (no matter to
whom it may be made) must include details about
the pumped liquid if the pump has been used for
liquids which are injurious to health or toxic.
Before a pump is returned, it must be cleaned in the
best possible way.
17. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
Subject to alterations.
Warning
Before starting work on the pump, make
sure that the fuses have been removed or
the mains switch has been switched to off.
It must be ensured that the power supply
cannot be accidentally switched on.
All rotating parts must have stopped
moving.
Warning
If a pump has been used for a liquid which
is injurious to health or toxic, the pump will
be classified as contaminated.

Čeština (CZ)
19
Čeština (CZ) Montážní a provozní návod
Překlad originální anglické verze
OBSAH
Strana
1. Symboly použité v tomto návodu
2. Všebecný popis
K zajištění spolehlivého a optimálního provozu jsou
čerpadla Grundfos typu DPK k dispozici se dvěma
typy oběžných kol.
Odvodňovací čerpadlo DPK:
• Modely 0,75 - 15 kW mají polootevřené oběžné
kolo
• Modely 19 a 22 kW mají uzavřené oběžné kolo.
Čerpadlo na odpadní vodu DPK.V:
• Modely 1,5 - 7,5 kW mají tříkanálové oběžné kolo
Super Vortex.
Čerpadla DPK lze použít k odčerpávání povrchové
a podzemní splaškové vody v budovách,
odvodňovacích soustavách nádvoří
avprůmyslových provozech, kde je voda z různých
zdrojůshromažďována v odvodňovacích jímkách
a potom čerpána dále.
Čerpadla DPK.V lze v podobných provozech použít
krůzným účelům včetněsplaškových vod
a odpadních vod z kalových jímek.
Čerpadla DPK a DPK.V je možno ovládat pomocí
řídících jednotek GU01 a GU02. Další informace
jsou uvedeny v letáku modulůGU01/GU02 na
www.grundfos.com.
1. Symboly použité v tomto návodu 19
2. Všebecný popis 19
3. Provozní podmínky 20
4. Použití 21
5. Bezpečnost 21
6. Doprava a skladování 21
6.1 Doprava 21
6.2 Skladování 22
6.2.1 Skladování ve skladě22
6.2.2 Skladování v nádrži 22
7. Typový štítek 22
8. Schvalovací protokoly 23
9. Typový klíč23
10. Instalace 24
10.1 Typy instalace 24
10.2 Ponořená instalace na automatické
spojce 24
10.3 Ponořená instalace volněstojícího
čerpadla 25
11. Elektrická přípojka 26
11.1 Řídící jednotky pro čerpadla 27
11.2 GU01 a GU02 27
11.3 Provoz s frekvenčním měničem 27
11.3.1 Doporučení 27
11.3.2 Možné následky 27
12. Uvedení do provozu 28
12.1 Směr otáčení 28
13. Provoz 29
14. Údržba, kontrola a opravy 29
14.1 Údržba 29
14.1.1 Proud a napětí 29
14.1.2 Vibrace 29
14.1.3 Výtlačný tlak a průtok 29
14.1.4 Izolační odpor 29
14.2 Kontrola 30
14.2.1 Vytažení čerpadla z nádrže 30
14.2.2 Kontrola snímače průsaku 30
14.2.3 Kontrola oběžného kola a těsnicího kruhu 30
14.3 Generální oprava 30
15. Oprava poruch 31
16. Servis 32
16.1 Servisní dokumentace 32
16.2 Kontaminovaná čerpadla 32
17. Likvidace výrobku 32
Varování
Před zahájením montážních prací si
pečlivěpřečtěte tyto montážní a provozní
předpisy. Montáž a provoz provádějte
rovněž v souladu s místními předpisy a se
zavedenou osvědčenou praxí.
Varování
Bezpečnostní pokyny uvedené v tomto
montážním a provozním návodu, jejichž
nedodržení může způsobit ohrožení osob.
Varování
Jestliže tyto instrukce nebudou dodrženy,
může to vést k úrazu elektrickým proudem
a z toho vyplývajícím vážným zraněním
nebo úmrtím.
Pozor
Pokud nebudou tyto bezpečnostní pokyny
dodrženy, mohlo by dojít k poruše nebo
poškození zařízení.
Pokyn
Doporučení nebo pokyny, které mají
usnadnit práci a zajišťovat bezpečný
provoz.

Čeština (CZ)
20
3. Provozní podmínky
Čerpadla konstrukční řady DPK jsou vhodná pro dva
provozní režimy:
• nepřetržitý provoz se zcela ponořeným
čerpadlem, S1, s minimální hladinou kapaliny
nad čerpadlem,
•přerušovaný provoz, S3, s čerpadlem částečně
ponořeným v čerpané kapalině. Viz obr. 1.
Obr. 1 Hladina kapaliny
hodnota pH
Čerpadla DPK použitá ve stálých instalacích mohou
čerpat kapaliny, jejichž hodnota pH spadá do
rozsahu 4 až 10.
Teplota kapaliny
0 až +40 °C.
Hustota čerpané kapaliny
Maximálně1000 kg/m3.
V případěvyšší hustoty kontaktujte Grundfos.
Instalační hloubka
Maximálně20 metrůpod hladinou kapaliny.
Provozní charakteristika
Max. 30 zapnutí za hodinu.
Obr. 2 Čerpadlo DPK
Obr. 3 Čerpadlo DPK.V
TM04 4124 0809
S1
S3
TM04 4092 0709TM06 5236 4115
Pol. Popis
1 Zvedací konzola
2 Typový štítek
3Motor
4Přípojka proplachovacího ventilu
5Výtlačná příruba
6 Kabelová průchodka
7 Horní kryt
8 Kruhový stojan
9Těleso čerpadla
1
6
7
9
8
2
3
5
4
1
2
6
7
3
5
9
8