Grundfos SL1 Series User manual

SL1 and SLV pumps
1.1 - 11 kW, 60 Hz
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
75
+
FM

English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. LIMITED WARRANTY
Products manufactured by GRUNDFOS PUMPS CORPORATION
(Grundfos) are warranted to the original user only to be free of
defects in material and workmanship for a period of 24 months
from date of installation, but not more than 30 months from date
of manufacture. Grundfos' liability under this warranty shall be
limited to repairing or replacing at Grundfos' option, without
charge, F.O.B. Grundfos' factory or authorized service station,
any product of Grundfos' manufacture. Grundfos will not be liable
for any costs of removal, installation, transportation, or any other
charges which may arise in connection with a warranty claim.
Products which are sold but not manufactured by Grundfos are
subject to the warranty provided by the manufacturer of said
products and not by Grundfos' warranty. Grundfos will not be
liable for damage or wear to products caused by abnormal
operating conditions, accident, abuse, misuse, unauthorized
alteration or repair, or if the product was not installed in
accordance with Grundfos' printed installation and operating
instructions.
To obtain service under this warranty, the defective product must
be returned to the distributor or dealer of Grundfos' products from
which it was purchased together with proof of purchase and
installation date, failure date, and supporting installation data.
Unless otherwise provided, the distributor or dealer will contact
Grundfos or an authorized service station for instructions.
Any defective product to be returned to Grundfos or a service
station must be sent freight prepaid; documentation supporting
the warranty claim and/or a Return Material Authorization must
be included if so instructed.
GRUNDFOS WILL NOT BE LIABLE FOR ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES, LOSSES, OR EXPENSES
ARISING FROM INSTALLATION, USE, OR ANY OTHER
CAUSES. THERE ARE NO EXPRESS OR IMPLIED
WARRANTIES, INCLUDING MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE, WHICH EXTEND BEYOND
THOSE WARRANTIES DESCRIBED OR REFERRED TO
ABOVE.
Some jurisdictions do not allow the exclusion or limitation of
incidental or consequential damages and some jurisdictions do
not allow limit actions on how long implied warranties may last.
Therefore, the above limitations or exclusions may not apply to
you. This warranty gives you specific legal rights and you may
also have other rights which vary from jurisdiction to jurisdiction.
2. Symbols used in this document
3. General description
This booklet includes instructions for installation, operation and
maintenance of Grundfos SL1 and SLV submersible sewage and
wastewater pumps with motors of 1.1 to 11 kW. Grundfos SL1
and SLV sewage pumps are designed for pumping domestic and
industrial sewage and wastewater.
1. LIMITED WARRANTY 2
2. Symbols used in this document 2
3. General description 2
3.1 Product drawing 3
3.2 Control and monitoring 3
3.3 Applications 3
3.4 Operating conditions 3
4. Delivery and handling 4
4.1 Transportation 4
4.2 Storage 4
5. Identification 4
5.1 Nameplate 4
5.2 Type key 5
6. Approvals 6
6.1 Explanation to FM approval 6
7. Safety 6
7.1 Potentially explosive environments 7
8. Installation 7
8.1 Submerged installation on auto-coupling 8
8.2 Free-standing submerged installation on ring stand 8
8.3 Torques for suction and discharge flanges 9
9. Electrical connection 9
9.1 Wiring diagrams 11
9.2 Pump controllers 14
9.3 Thermal switch, Pt1000 and thermistor 14
9.4 WIO sensor (water-in-oil sensor) 14
9.5 Moisture switch 14
9.6 IO 113 15
9.7 Frequency converter operation 15
10. Start-up 16
10.1 General start-up procedure 16
10.2 Operating modes 16
10.3 Direction of rotation 17
11. Maintenance and service 17
11.1 Inspection 17
11.2 Dismantling the pump 18
11.3 Assembling the pump 19
11.4 Oil quantities 20
11.5 Service kits 20
11.6 Contaminated pumps 20
12. Fault finding 21
13. Technical data 23
14. Disposal 24
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
The use of this product requires experience with and
knowledge of the product.
Persons with reduced physical, sensory or mental
capabilities must not use this product, unless they
are under supervision or have been instructed in the
use of the product by a person responsible for their
safety.
Children must not use or play with this product.
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.
Warning
These instructions must be observed for explosion-
proof pumps. It is advisable also to follow these
instructions for standard pumps.
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.
FM

English (GB)
3
Two types of pumps are available:
• SL1 sewage pumps with S-tube®impeller
• SLV sewage pumps with SuperVortex, free-flow impeller.
The pumps can be installed on an auto-coupling system or stand
freely on the bottom of a tank.
Grundfos SL1 and SLV pumps are designed with S-tube®and
SuperVortex impeller, respectively, to ensure reliable and
optimum operation.
The booklet also includes specific instructions for the explosion-
proof pumps.
3.1 Product drawing
Fig. 1 SL1 pump
3.2 Control and monitoring
The pumps can be controlled via the Grundfos Dedicated
Controls, DC, DCD. Pumps with sensor are supplied together
with an IO 113. See section 9.2 Pump controllers.
3.3 Applications
SL1 and SLV pumps are designed for pumping these liquids:
• large quantities of drainage and surface water
• domestic wastewater with discharge from toilets
• wastewater with a high content of fibres (vortex impeller)
• municipal and commercial sewage and wastewater.
3.4 Operating conditions
The Grundfos SL1 and SLV pumps are suitable for the following
operating situations:
•S1 operation (continuous operation), the pump must always
be covered by the pumped liquid to the top of the motor.
See fig. 2.
•S3 operation (intermittent operation), the pump must always
be covered by the pumped liquid up to the top of the cable
entry. See fig. 2.
For further information about S1 and S3 operation, see section
10.2 Operating modes.
Fig. 2 Stop levels
pH value
SL1 and SLV pumps in permanent installations can be used for
pumping liquids with the following pH values:
1) For fluctuating pH values, the range is pH 4 to 14.
Liquid temperature
0 °C to + 40 °C.
For short periods (maximum 3 minutes) a temperature of up to
+60 °C is permissible (non-FM versions only).
Ambient temperature
For non-explosion proof pumps, the ambient temperature may
exceed +40 °C for a short period (max. 3 minutes).
Density and viscosity of pumped liquid
When pumping liquids with a density and/or a kinematic viscosity
higher than that of water, use motors with correspondingly higher
outputs.
Flow velocity
It is advisable to keep a minimum flow velocity to avoid
sedimentations in the piping system. Recommended flow
velocities:
– in vertical pipes: 0.7 m/s
– in horizontal pipes: 1.0 m/s
Free spherical passage
From 50 to 100 mm, depending on pump size.
Operating mode
Maximum 20 starts per hour.
TM04 2648 2808
Pos. Description
1 Lifting bracket
2Nameplate
3 Oil screws
4 Discharge flange
5 Cable plug
6Clamp
7 Pump housing
1
5
2
6
4
3
7
TM04 2649 2808
Pump
type Material variant Material pH value
SL1/SLV Standard Cast iron impeller and pump
housing 6.5 to 141)
SLV Q Stainless steel impeller and
cast iron pump housing 6 to 141)
Warning
Explosion-proof pumps must never pump liquids of a
temperature higher than +40 °C.
Warning
For explosion-proof pumps, the ambient temperature
on the installation site must be in the range from -20
°C to +40 °C.
For explosion-proof pumps with WIO sensor, the
ambient temperature at the installation site must be
in the range from 0 °C to +40 °C.
S1 operation
S3 operation
FM
FM

English (GB)
4
4. Delivery and handling
The pump may be transported and stored in a vertical or
horizontal position. Make sure that it cannot roll or fall over.
4.1 Transportation
All lifting equipment must be rated for the purpose and checked
for damage before any attempts to lift the pump. The lifting
equipment rating must under no circumstances be exceeded.
The pump weight is stated on the pump nameplate.
4.2 Storage
During long periods of storage, the pump must be protected
against moisture and heat.
Storage temperature: -30 °C to +60 °C
If the pump has been in use, the oil should be changed before
storage.
After a long period of storage, the pump should be inspected
before it is put into operation. Make sure that the impeller can
rotate freely. Pay special attention to the condition of the shaft
seal, O-rings, oil and the cable entry.
5. Identification
5.1 Nameplate
The nameplate states the operating data and approvals applying
to the pump. The nameplate is fitted to the side of the stator
housing close to the cable entry.
Fix the extra nameplate supplied with the pump to the cable end
in the controller.
Fig. 3 Nameplate
Warning
Always lift the pump by its lifting bracket or by means
of a fork-lift truck if the pump is fixed on a pallet.
Never lift the pump by means of the motor cable or
the hose/pipe.
Warning
If the pumps are stored for more than one year or it
takes a long time before it is put into operation after
the installation, the impeller must be turned at least
once a month.
TM04 6766 0810
Pos. Description
1FMmarking
2 Thermally protected
3 Type designation
4 Serial number
5 Production code (year/week)
6 Maximum ambient temperature
7 Maximum head
8 Maximum flow rate
9 Rated input/output power
10 Rated voltage, D
11 Rated voltage, Y
12 Frequency
13 Country of production
14 CSA mark
15 FM mark
16 Enclosure class to IEC
17 Maximum installation depth
18 Power factor
19 Number of phases
20 Rated speed
21 Service factor
22 Full load current, D
23 Full load current, Y
24 Insulation class
25 Weight without cable
4
3
1
2
5
6
9
8
12
7
13
10
16
18
15
19
20
23
17
22
24
21
25
11
14

English (GB)
5
5.2 Type key
The pump can be identified by means of the type designation stated on the pump nameplate. See section 5.1 Nameplate.
Code Example SL 1 .80 .80 .40 .A .Ex .4 .6 0D A. Q. Z
SL Pump type Grundfos sewage/wastewater pumps
1
V
Impeller type
S-tube®impeller
SuperVortex (free-flow) impeller
50
65
80
100
Free spherical passage
50 mm
65 mm
80 mm
100 mm
65
80
100
150
Pump discharge
DN 65
DN 80
DN 100
DN 150
40
Motor power, P2 (motor output power P2/10 [kW])
1.1 - 11 kW
4 kW
Blank
A
Sensor version
Standard
Sensor
Blank
Ex
Pump version
Non-explosion-proof pump (standard)
Explosion-proof pump
2
4
Number of poles
2-pole
4-pole
6Frequency 60 Hz
0F
0G
1F
1G
Voltage and starting method
3 x 220-277 V, DOL
3 x 380-480 V, DOL
3 x 220-277 V, D / 380-480 V Y
3 x 380-480 V, Y/D
Blank
A
B
C
Product variant
1st generation
2nd generation
3rd generation
4rd generation
Blank
Q
Material variant
Cast iron impeller, pump housing and motor housing
Stainless steel impeller, cast iron pump housing and motor housing
Blank
Z
Customisation
Pump in standard range
Custom-built pump

English (GB)
6
6. Approvals
The SL1 and SLV pumps have been approved by CSA and FM,
and the explosion-proof versions hold an FM type examination
certificate no.: 3035318.
Approval standards
These pumps are approved by CSA and FM according to UL778,
C22.2 no 108 and FM 3600, FM 3615 and FM 3650.
6.1 Explanation to FM approval
The SL1 and SLV pumps have the following explosion protection
classification: Class I, Division 1, Groups C and D, T4, T3, IP68.
7. Safety
For safety reasons, all work in tanks must be supervised by a
person outside the pump tank.
Tanks for submersible sewage and wastewater pumps may
contain sewage or wastewater with toxic and/or disease-causing
substances. Therefore, 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.
The following warnings and notes also appear in a label
(delivered with the pump). Place the label near the control panel.
Standards Code Description
FM 3600
FM 3615
FM 3650
Class I = Explosive atmosphere is caused by gas or vapours.
Division 1 = Area classification
Groups C and D = Classification of gases
T4/T3 = Maximum surface temperature is 135 °C and 200 °C
IP68 = Enclosure class according to IEC 60529.
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.
Warning
Persons must not enter the installation area when the
atmosphere is explosive.
Warning
It must be possible to lock the mains switch in
position 0. Type and requirements as specified in
local codes.
Note
It is advisable to make all maintenance and service
jobs when the pump is placed outside 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 personnel or damage to the pump.
FM
Warning
Risk of electric shock. Do not remove cord and strain
relief. Do not connect conduit to pump.
Warning
Risk of electric shock
This pump has not been approved for use in
swimming pools or marine areas.
Warning
To reduce risk of electric shock, see installation and
operating instructions for guidance in proper
installation.
Warning
To reduce risk of electric shock, install only on a
circuit protected by a ground-fault circuit interrupter
(GFCI).
Note
Acceptable for indoor and outdoor use.
Note
Submersible pump.
Caution
Provide suitable motor protection based on the
electric ratings.
Caution
Enclosure type 3.
Caution
This pump has been tested with water only.
Caution
Use with approved motor-protective circuit breaker
matching motor input in full-load amperes with
overload element(s) selected or adjusted in
accordance with control instructions.

English (GB)
7
7.1 Potentially explosive environments
Use explosion-proof pumps for applications in potentially
explosive environments. See section 6.1 Explanation to FM
approval.
8. Installation
Before beginning installation procedures, carry out these checks:
• 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?
Fix the extra nameplate supplied with the pump to the cable end
in the controller.
All safety regulations must be observed at the installation site,
e.g. the use of blowers for fresh-air supply to the tank.
Prior to installation, check the oil level in the oil chamber.
See section 11. Maintenance and service.
Installation types
The SL1 and SLV pumps are designed for two installation types:
• submerged installation on auto-coupling
• free-standing submerged installation on ring stand.
Warning
SL1 and SLV pumps must under no circumstances
be used to pump explosive, flammable or
combustible liquids.
Warning
The classification of the installation site must be
approved by the local fire-fighting authorities in each
individual case.
Special conditions for safe use of SL1 and SLV
explosion-proof pumps:
1. Make sure the moisture switches and thermal
switches are connected in the same circuit but
have separate alarm outputs (motor stop) in case
of high humidity or high temperature in the motor.
2. Bolts used for replacement must be class A2-70
or better according to EN/ISO 3506-1.
3. Contact the manufacturer for information on the
dimensions of the flameproof joints.
4. The level of pumped liquid must be controlled by
two level switches connected to the motor control
circuit. The minimum level depends on the
installation type and is specified in these
installation and operating instructions.
5. Make sure the permanently attached cable is
suitably mechanically protected and terminated in
a suitable terminal board placed outside the
potentially explosive area.
6. The sewage pumps have an ambient temperature
range of -20 °C to +40 °C and a maximum
process temperature of +40 °C. The minimum
ambient temperature for a pump with a water-in-
oil sensor is 0 °C.
7. The thermal protection in the stator windings has
a nominal switch temperature of 150 °C and must
guarantee the disconnection of the power supply;
the power supply must be reset manually.
8. The control unit must protect the WIO sensor
against short circuit current of the supply to which
it is connected. The maximum current from the
control unit must be limited to 350 mA.
FM
FM
FM
Warning
During installation, always support the pump by
means of lifting chains or place it in horizontal
position to secure stability.
Caution
Prior to installation, make sure the tank bottom is
even.
Warning
Before beginning the installation, switch off the
power supply and lock the mains switch in position 0.
Any external voltage connected to the pump must be
switched off before working on the pump.
Note
Further details concerning accessories can be found
in the data booklet, SL1, SLV, DP, EF pumps on
www.grundfos.com.
Warning
Do not put your hands or any tool into the pump
suction or discharge port after the pump has been
connected to the power supply, unless the pump has
been switched off by removing the fuses or switching
off the mains switch. It must be ensured that the
power supply cannot be accidentally switched on.
Caution
We recommend that you always use Grundfos
accessories to avoid malfunctions due to incorrect
installation.
Warning
Only use the lifting bracket for lifting the pump. Do
not use it to hold the pump when in operation.

English (GB)
8
8.1 Submerged installation on auto-coupling
Fig. 4 Submerged installation on auto coupling
Pumps for permanent installation can be installed 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.
Proceed as follows:
1. Drill mounting holes for the guide rail bracket on the inside of
the tank and fasten the guide rail bracket provisionally with
two screws.
2. Place the auto-coupling base unit on the bottom of the tank.
Use a plumb line to establish the correct positioning.
Fasten the auto-coupling with expansion bolts. If the bottom of
the tank is uneven, the auto-coupling base unit must be
supported so that it is level when being fastened.
3. Assemble the discharge pipe in accordance with the generally
accepted procedures and without exposing the pipe to
distortion or tension.
4. Place the guide rails on the auto-coupling base unit and adjust
the length of the rails accurately to the guide rail bracket at
the top of the tank.
5. Unscrew the provisionally fastened guide rail bracket.
Insert the upper guide rail bracket into the guide rails.
Fasten the guide rail bracket on the inside of the tank.
6. Clean out debris from the tank before lowering the pump into
the tank.
7. Fit the guide claw to the discharge port of the pump.
8. Slide the guide claw of the pump between the guide rails and
lower the pump into the tank by means of a chain secured to
the lifting bracket of the pump. When the pump reaches the
auto-coupling base unit, the pump will automatically connect
tightly.
9. 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.
10. 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 cables are not sharply bent or
pinched.
11. Connect the motor cable.
8.2 Free-standing submerged installation on ring
stand
Fig. 5 Free-standing submerged installation on a ring stand
Pumps for free-standing submerged installation can stand freely
on the bottom of the tank. The pump must be installed on a ring
stand. See fig. 5.
The ring stand is available as an accessory.
In order to facilitate service on the pump, fit a flexible union or
coupling to the elbow on the discharge port for easy separation.
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
discharge 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,
support the pump on bricks or a similar support.
Proceed as follows:
1. Fit a 90 ° elbow to the pump discharge port and connect the
discharge 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 is hanging from the chain and not the cable. Make sure
that the pump is standing 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 at the top
of the tank. Make sure that the cable is not sharply bent or
pinched.
5. Connect the motor cable.
TM04 2650 2808
Warning
Before beginning installation procedures, make sure
that the atmosphere in the tank is not potentially
explosive.
Caution
Make sure that the pipework is installed without the
use of undue force. No loads from the pipework
weight must be carried by the pump. We recommend
the use of loose flanges to ease the installation and
to avoid pipe tension at flanges and bolts.
Caution
Do not use elastic elements or bellows in the
pipework; these elements should never be used as a
means to align the pipework.
Note
The guide rails must not have any axial play as this
would cause noise during pump operation.
FM
Note
The free end of the cable must not be submerged, as
water may penetrate into the cable.
TM04 2651 2808
Note
The free end of the cable must not be submerged, as
water may penetrate into the cable.

English (GB)
9
8.3 Torques for suction and discharge flanges
Grade 4.6 (5) galvanized steel screws and nuts
Grade A2.50 (AISI 304) steel screws and nuts
9. Electrical connection
Nominal
diameter
Pitch
circle
diameter
[mm]
Screws
Specified torques
rounded off by +/- 5
[Nm]
Slightly
oiled Well lubricated
Discharge and suction
DN 65 145 4 x M16 70 60
DN 80 160 8 x M16 70 60
DN 100 180 8 x M16 70 60
DN 150 240 8 x M20 140 120
Nominal
diameter
Pitch
circle
diameter
[mm]
Screws
Specified torques
rounded off by +/- 5
[Nm]
Slightly
oiled Well lubricated
Discharge and suction
DN 65 145 4 x M16 - 60
DN 80 160 8 x M16 - 60
DN 100 180 8 x M16 - 60
DN 150 240 8 x M20 - 120
Caution
The gasket must be a full face, reinforced paper
gasket like Klingersil C4300. If softer gasket material
is used, torques must be reconsidered.
Warning
The pump must not run dry.
An additional level switch must be installed to ensure
that the pump is stopped in case the stop level switch
is not operating.
Warning
Connect the pump to an external mains switch which
ensures all-pole disconnection with a contact
separation according to EN 60204-1, 5.3.2.
It must be possible to lock the mains switch in
position 0. Type and requirements as specified in EN
60204-1, 5.3.2.
The electrical connection must be carried out in
accordance with local regulations.
Warning
The pumps must be connected to a controller with a
motor protection relay with IEC trip class 10 or 15.
Warning
Power supply for motor protection circuit must be low
voltage, Class 2.
See motor protection wiring diagram in section
9.1 Wiring diagrams.
Warning
Pumps for hazardous locations must be connected to
a controller with a motor protection relay with IEC trip
class 10.
See fig. 12.
Warning
Do not install Grundfos pump controllers, FM barriers
and the free end of the power cable in potentially
explosive environments.
The classification of the installation site must be
approved by the local fire-fighting authorities in each
individual case.
On explosion-proof pumps, make sure that an
external earth lead is connected to the external earth
terminal on the pump using a secure cable clamp.
Clean the surface of the external earth connection
and mount the cable clamp.
The cross section of the earth lead must be at least 4
mm2, e.g. type H07 V2-K (PVT 90 °) yellow/green.
Make sure that the earth connection is protected
from corrosion.
Make sure that all protective equipment has been
connected correctly.
Float switches used in potentially explosive
environments must be approved for this application.
They must be connected to the Grundfos DC, DCD
pump controller via a intrinsically safe barrier to
ensure a safe circuit.
FM
FM

English (GB)
10
The mains supply voltage and frequency are marked on the pump
nameplate. The voltage tolerance must be within - 10 %/+ 10 % of
the rated voltage. Make sure that the motor is suitable for the
power supply available at the installation site.
As standard all pumps are supplied with 10 m cable and a free
cable end, except for pumps for Australia which have 15 m cable.
Pumps without sensor must be connected to this controller
type:
• a Grundfos DC, DCD pump controller.
Pumps with sensor must be connected to a Grundfos IO 113
and the following controller type:
• a Grundfos DC, DCD pump controller.
Pumps with WIO sensor
For safe installation and operation of pumps equipped with a WIO
sensor, we recommend to install an RC filter between the power
contactor and the pump.
Please note that the following aspects may cause problems in
case of transients in the power supply system:
• Motor power:
– The bigger the motor, the higher the transients.
• Length of motor cable:
– Where power and signal conductors are running in parallel
close to each other, the risk of transients causing
interference between power and signal conductors will
increase with the length of the cable.
• Switchboard layout:
– Power and signal conductors must be physically separated
as much as possible. Close installation can cause
interference in case of transients.
• Supply network "stiffness":
– If a transformer station is located close to the installation,
the supply network may be "stiff" and transient levels will be
higher.
If combinations of the above aspects are present, it may be
necessary to install RC filters for pumps with WIO sensors to
protect against transients.
Transients can be completely eliminated if soft starters are used.
But be aware that soft starters and variable speed drives have
other EMC-related issues that must be taken into consideration.
For more information, see section 9.7 Frequency converter
operation.
Warning
If the supply cable is damaged, it must be replaced
by the manufacturer, its service agent or similarly
qualified persons.
Caution
Set the motor-protective circuit breaker to the rated
current of the pump + 15 % service factor. The rated
current is stated on the pump nameplate.
Caution
If the pump has an FM mark on the nameplate, make
sure that the pump is connected in accordance with
the instructions given in this booklet.
Warning
Before installation and the first start-up of the pump,
check the condition of the cable visually to avoid
short circuits.
Caution
If an RC filter is installed to avoid any kind of
transients in the installation, the RC filter must be
installed between the power contactor and the pump.
FM

English (GB)
11
9.1 Wiring diagrams
The pumps are supplied via either a 7-wire cable or a 10-wire cable. See fig. 6for wiring diagrams for 7-wire cable connection or figs 7, 8
and 9for wiring diagrams for 10-wire cable connection. For further information, see the installation and operating instructions for the
selected pump controller.
Fig. 6 Wiring diagram, 7-wire cable, DOL
Fig. 7 Wiring diagram, 10-wire cable, Star / Delta (Y/D)
TM04 6689 0314
Sensor version
Thermal switch and PT1000 resistor
Moisture switch and water-in-oil sensor
CSA approved, with/without FM approval
Standard version
Thermal switches
CSA approved, with/without FM approval
TM04 6690 0314
Sensor version
Thermal switch and PT1000 resistor
Moisture switch and water-in-oil sensor
CSA approved, with/without FM approval
Standard version
Thermal switches
CSA approved, with/without FM approval

English (GB)
12
Fig. 8 Wiring diagram, 10-wire cable, Star connected (Y)
Fig. 9 Wiring diagram, 10-wire cable, Delta connected (D)
To find out whether the pump is fitted with a thermal switch or a
PTC thermistor, measure the motor winding resistance. See table
below.
TM04 6691 0314
Sensor version
Thermal switch and PT1000 resistor
Moisture switch and water-in-oil sensor
CSA approved, with/without FM approval
Standard version
Thermal switches
CSA approved, with/without FM approval
TM04 6692 0314
Sensor version
Thermal switch and PT1000 resistor
Moisture switch and water-in-oil sensor
CSA approved, with/without FM approval
Standard version
Thermal switches
CSA approved, with/without FM approval
Without cable With 10 m
cable
With 15 m
cable
Thermal switch < 50 mΩ< 320 mΩ< 390 mΩ
PTC thermistor > 100 mΩ> 370 mΩ> 440 mΩ

English (GB)
13
SL voltage concept
To standardize and help minimize part numbers and pump
versions of the SL product portfolio, Grundfos created the 61J
voltage variant. 61J is a tri-voltage (208 V / 230 V / 460 V), three
phase, 60 Hz DOL (Direct-On-Line) connected motor.
• Connect 208 V and 230 V pumps using the low-voltage (delta)
connection.
• Connect 460 V pumps using the high-voltage (star)
connection.
Fig. 10 61J, 208 V and 230 V DOL wired in low-voltage (delta)
connection
Fig. 11 61J, 460 V DOL wired in high-voltage (star) connection
The 61J voltage variant provides a large voltage range for supply
power.
Fig. 12 Motor protection wiring diagram
TM05 7155 0514
TM05 7156 0514
Stated voltage
[V] Percentage variation Voltage range [V]
208 +/- 10 % 187-228
230 +/- 10 % 207-253
460 +/- 10 % 414-506
TM06 0523 0514
L1 L3 L2
F1
Q1
F3
1 5 3
2 6 4
M1 M
3~
U1
W1
V1
PE
S1
ON
S2
OFF
F3
Q1
F2
B2
B1
Q1
21
S1 On switch
S2 Off switch
F1 + F2 Fuse
F3 Motor protection switch
Q1 Contactor
B1 + B2 Thermal switch in motor
M1 Motor

English (GB)
14
9.2 Pump controllers
SL1 and SLV pumps can be connected to Grundfos Dedicated
Controls for level control. Dedicated Controls are available as
accessories:
• type DC for one-pump installations
• type DCD for up to six-pump installations.
For further information on controllers, please see the installation
and operation instructions for the selected controller or go to
www.grundfos.com/WebCAPS.
9.3 Thermal switch, Pt1000 and thermistor
All SL1 and SLV pumps have thermal protection incorporated in
the stator windings.
Pumps without sensor
Pumps without sensor have a thermal switch.
Via the pump controller safety circuit, the thermal switch will stop
the pump by breaking the circuit in case of overtemperature
(approx. 150 °C). The thermal switch will reclose the circuit after
cooling.
The maximum operating current of the thermal switch is 0.5 A at
500 VAC and cos φ0.6. The switch must be able to break a coil in
the supply circuit.
Pumps with WIO sensor
Pumps with WIO sensor have either a thermal switch and a
Pt1000 sensor or a thermistor (PTC) in the windings, depending
on the installation site.
Via the pump controller safety circuit, the thermal switch or the
thermistor will stop the pump by breaking the circuit in case of
overtemperature (approx. 150 °C). The thermal switch or the
thermistor will reclose the circuit after cooling.
The maximum operating current of both the Pt1000 and the
thermistor is 1 mA at 24 VDC.
Non-explosion-proof pumps
When closing the circuit after cooling, the thermal protection can
restart the pump automatically via the controller.
Explosion-proof pumps
9.4 WIO sensor (water-in-oil sensor)
The WIO sensor measures the water content in the oil and
converts the value into an analogue current signal. The two
sensor leads are for power supply and for carrying the signal to
the IO 113. The sensor measures the water content from 0 to
20 %. It also sends a signal if the water content is outside the
normal range (warning), or if there is air in the oil chamber
(alarm). The sensor is fitted in a stainless steel tube for
mechanical protection.
Fig. 13 WIO sensor
9.4.1 Fitting the WIO sensor
Fit the sensor next to one of the shaft seal openings. See fig. 13.
The sensor must be tilted into the motor's direction of rotation to
ensure that oil is led into the sensor. Make sure that the sensor is
submerged in the oil.
9.4.2 Technical data
See also the installation and operating instructions for IO 113 on
www.grundfos.com.
9.5 Moisture switch
All pumps are fitted with a moisture switch as standard with the
moisture switch being connected via the supply cable, see
section 9. Electrical connection, and connected to a separate
circuit breaker.
The moisture switch is positioned in the bottom of the motor.
If there is moisture in the motor, the switch will break the circuit
and send a signal to the IO 113.
The moisture switch is non-reversing and must be replaced after
use.
The moisture switch is connected to the monitoring cable, and it
must be connected to the safety circuit of the separate pump
controller. See section 9. Electrical connection.
Warning
The thermal protection of explosion-proof pumps
must not restart the pump automatically.
This ensures protection against overtemperature in
potentially explosive environments. In pumps with
sensor this is done by removing the short-circuit
between terminals R1 and R2 in the IO 113. See
Electrical data in the IO 113 installation and
operating instructions.
Warning
The separate motor-protective circuit breaker/
controller must not be installed in potentially
explosive environments.
FM
FM
TM04 5238 2909 - TM03 1164 1105
Input voltage: 12-24 VDC
Output current: 3.4 - 22 mA
Power input: 0.6 W
Ambient temperature: 0 to 70 °C
Note
There is no moisture switch in CSA versions without
sensor.
Caution
The motor-protective circuit breaker of the pump
controller must include a circuit which automatically
disconnects the power supply in case the protective
circuit for the pump is opened.

English (GB)
15
9.6 IO 113
IO 113 provides an interface between a Grundfos wastewater
pump equipped with sensors and the pump controller(s).
The most important sensor status information is indicated on the
front panel.
One pump can be connected to one IO 113 module.
Together with the sensors, the IO 113 provides a galvanic
isolation between the motor voltage in the pump and the
connected controller(s).
IO 113 can do the following as standard:
• Protect the pump against overheating.
• Monitor the status of these items:
– motor winding temperature
– leakage (WIO)
– moisture in pump.
• Measure the stator insulation resistance.
• Stop the pump in case of alarm.
• Remotely monitor the pump via RS-485 communication
(Modbus or GENIbus).
• Control the pump via a frequency converter.
Fig. 14 IO 113 module
9.7 Frequency converter operation
All SL1/SLV pump types are designed for frequency converter
operation to keep the energy consumption at a minimum.
To avoid the risk of sedimentation in the pipes, we recommend
that you operate the speed-controlled pump at a flow rate above
3.28 ft/s (1 m/s).
For frequency converter operation, please observe the following
information:
• Requirements must be fulfilled. See section
9.7.1 Requirements
• Recommendations ought to be fulfilled. See section
9.7.2 Recommendations
• Consequences should be considered. See section
9.7.3 Consequences
9.7.1 Requirements
• The thermal protection of the motor must be connected.
• Peak voltage and dU/dt must be in accordance with the table
below. The values stated are maximum values supplied to the
motor terminals. The cable influence has not been taken into
account. See the frequency converter data sheet regarding the
actual values and the cable influence on the peak voltage and
dU/dt.
• If the pump is an FM-approved pump, check if the FM
certificate of the specific pump allows the use of a frequency
converter.
• Set the frequency converter U/f ratio according to the motor
data.
• Local regulations/standards must be fulfilled.
9.7.2 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 3.28 ft/s (1 m/s).
• 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.
• Use screened motor cable if there is a risk that electrical noise
can disturb other electrical equipment. See data sheet for the
frequency converter used.
9.7.3 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.
Warning
IO 113 must not be used for purposes other than
those specified above.
TM05 1881 3811
Pos. Description
1 Terminals for alarm relay
2 Terminals for analog and digital inputs and outputs
3 Terminals for supply voltage
4Potentiometer for setting the warning limit of stator
insulation resistance
5 Terminals for RS-485 for GENIbus or Modbus
6 Indicator light for moisture measurement
7 Indicator light for stator insulation resistance
8 Indicator light for leakage (WIO)
9 Indicator light for vibration in pump
10 Terminals for measurement of stator insulation
resistance
11 Terminals for connection of pump sensors
12 DIP switch for configuration
13 Indicator light for motor temperature
14 Button for resetting alarms
15 Indicator light for motor running
16 Indicator light for service
17 Terminals for digital outputs
PET1 T2 G1 A1 G2 A2 K1 K2 R1 R2
D1 D2 D3 D4 D5 D6 D7 D8
P1 P2 P3 P4 P5
AYB
I1 I2 I3
ON DIP
12345678910
11 12
12 3
4
5
6
7
8
9
1011
12
13
14
16
15
17
Maximum repetitive peak voltage
[V] Maximum dU/dt UN400 V [V/m sec.]
850 2000

English (GB)
16
10. Start-up
10.1 General start-up procedure
This procedure applies to new installations as well as after
service inspections if start-up takes place some time after the
pump was placed in the tank.
1. Remove the fuses and check that the impeller can rotate
freely. Turn the impeller by hand.
2. Check the condition of the oil in the oil chamber. See also
section 11.1 Inspection.
3. Check that the system, bolts, gaskets, pipework and valves
etc. are in correct condition.
4. Mount the pump in the system.
5. Switch on the power supply.
6. Check whether the monitoring units, if used, are operating
satisfactorily.
7. For pumps with WIO sensor, switch on the IO 113 and check
that there are no alarms or warnings. See section 9.6 IO 113.
8. Check the setting of air bells, float switches or electrodes.
9. Check the direction of rotation. See section 10.3 Direction of
rotation.
10. Open the isolating valves, if fitted.
11. Check that the liquid level is above the motor for S1 operation
and above the cable entry for S3 operation. See fig. 15. If the
minimum level is not reached do not start the pump.
12. Start the pump and let the pump run briefly, and check if the
liquid level is falling.
13. Observe if the discharge pressure and input current are
normal. If not, there might be air trapped inside the pump.
After one week of operation or after replacement of the shaft seal,
check the condition of the oil in the chamber. For pumps without
sensor, this is done by taking a sample of the oil. See section
11. Maintenance and service for procedure.
Every time the pump has been removed from the tank, go through
the above procedure when starting up again.
10.2 Operating modes
The pumps are designed for intermittent operation (S3).
When completely submerged, the pumps can also operate
continuously (S1).
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. 15.
In this operating mode, the pump is partly submerged in the
pumped liquid, i.e. the liquid level reaches at minimum the top of
the cable entry on the stator housing. See fig. 2.
Fig. 15 S3, intermittent operation
S1, continuous operation:
In this operating mode, the pump can operate continuously
without being stopped for cooling. See fig. 16. Being completely
submerged, the pump is sufficiently cooled by the surrounding
liquid. See fig. 2.
Fig. 16 S1, continuous operation
Fig. 17 Start and stop levels
Make sure that the effective volume of the tank does not become
so low that the number of starts per hour exceeds the maximum
permissible number.
Warning
Before starting work on the pump, make sure that the
fuses have been removed or the mains switch has
been switched 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.
Warning
The pump must not be started if the atmosphere in
the tank is potentially explosive.
Warning
It may lead to personal injuries or death to open the
clamp while the pump is operating.
Warning
The impeller can have sharp edges - wear protective
gloves.
Note
Trapped air can be removed from the pump housing
by tilting the pump by means of the lifting chain when
the pump is in operation.
Caution
In case of abnormal noise or vibrations from the
pump, other pump failure or power supply failure or
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.
FM
TM04 4527 1509
TM04 4528 1509
TM04 2654 2808
Operation
Stop
6 min.4 min.
10 min.
P
t
P
t
Operation
Stop
Start
Stop S1 operation
Alarm
Min. 10 cm
Stop S3 operation

English (GB)
17
10.3 Direction of rotation
Check the direction of rotation before starting up the pump.
An arrow on the stator housing indicates the correct direction of
rotation. Correct direction of rotation is clockwise when viewed
from above.
Checking the direction of rotation
The direction of rotation should be checked 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 pump will rotate
clockwise, i.e. it will jerk counter-clockwise. See fig. 18.
3. If the direction of rotation is wrong, interchange any two of the
phases in the power supply cable. See fig. 6or 8.
Fig. 18 Jerk direction
11. Maintenance and service
Before carrying out maintenance and service, it must be ensured
that the pump has been thoroughly flushed with clean water.
Rinse the pump parts in water after dismantling.
11.1 Inspection
Pumps running normal operation should be inspected every 3000
operating hours or at least once a year. If the pumped liquid is
very muddy or sandy, inspect the pump at shorter intervals.
Check the following points:
•Power consumption
See pump nameplate.
•Oil level and oil condition
When the pump is new or after replacement of the shaft seal,
check the oil level and water content after one week of
operation. If there is more than 20 % extra liquid (water) in the
oil chamber, the shaft seal is defective. The oil should be
changed after 3000 operating hours or once a year. Use Shell
Ondina 919 oil or similar type. See section 11.2.1 Oil change.
•Cable entry
Make sure that the cable entry is watertight (visual inspection)
and that the cable is not sharply bent and/or pinched.
•Pump parts
Check impeller, pump housing, etc. for possible wear.
Replace defective parts. See section 11.2.2 Removing the
pump housing and impeller.
Note
The pump may be started for a very short period
without being submerged to check the direction of
rotation.
TM04 2657 2808
Warning
During maintenance and service, including
transportation to service workshop, always support
the pump by means of lifting chains or place it in
horizontal position to secure stability.
Warning
Before starting work on the pump, make sure that the
fuses have been removed or the mains switch has
been switched off. It must be ensured that the power
supply cannot be accidentally switched on.
Make sure that all protective equipment has been
connected correctly.
Warning
Before starting work on the pump, make sure that the
mains switch has been locked in position 0.
All rotating parts must have stopped moving.
Warning
Maintenance work on explosion-proof pumps must
be carried out by FM approved service centres.
However, this does not apply to the hydraulic
components, such as pump housing, impeller, etc.
Warning
The cable must only be replaced by Grundfos or a
service workshop authorized by Grundfos.
FM

English (GB)
18
•Ball bearings
Check the shaft for noisy or heavy operation (turn the shaft by
hand). Replace defective ball bearings. A general overhaul of
the pump is usually required in case of defective ball bearings
or poor motor function. This work must be carried out by
Grundfos or a service workshop authorized by Grundfos.
•O-rings and similar parts
During service/replacement, it must be ensured that the
grooves for the O-rings as well as the seal faces have been
cleaned before the new parts are fitted. Grease O-rings and
recesses before assembly.
11.2 Dismantling the pump
11.2.1 Oil change
After 3000 operating hours or once a year, change the oil in the
oil chamber as described below.
If the shaft seal has been replaced, the oil must be changed.
Draining of oil
1. Place the pump on a plane surface with one oil screw pointing
downwards.
2. Place a suitable container (approx. 1 litre), for instance made
of transparent plastic material, under the oil screw.
3. Remove the lower oil screw.
4. Remove the upper oil screw.
If the pump has been in operation for a long period of time, if
the oil is drained off shortly after the pump has been stopped,
and if the oil is greyish white like milk, it contains water. If the
oil contains more than 20 % water, it is an indication that the
shaft seal is defective and must be replaced. If the shaft seal
is not replaced, the motor will be damaged.
If the quantity of oil is smaller than the quantity stated in
section 11.4 Oil quantities, the shaft seal is defective.
5. Clean the faces for the gaskets for oil screws.
Filling with oil
1. Turn the pump so that the oil filling holes are placed opposite
to each other, pointing upwards.
Fig. 19 Oil filling holes
2. Pour oil into the chamber. For oil quantity, see section 11.4 Oil
quantities.
3. Fit the oil screws with new gaskets.
11.2.2 Removing the pump housing and impeller
For position numbers, see pages 25 and 26.
Procedure
1. Loosen the clamp (pos. 92).
2. Remove the screw using your fingers.
3. Remove the pump housing (pos. 50) by inserting two
screwdrivers between the stator housing and the pump
housing.
4. Remove the screw (pos. 188a). Hold the impeller with a strap
wrench.
Fig. 20 Removing the impeller
5. Loosen the impeller (pos. 49) with a light blow on the edge.
Pull it off.
6. Remove the key (pos. 9a) and the spring for impeller
(pos. 157).
Warning
Defective bearings may reduce the explosion
protection.
Note
Do not reuse rubber parts.
Warning
Explosion-proof pumps must be checked by an FM
approved service centre once a year.
Note
See www.grundfos.com for service videos.
Warning
When loosening the screws of the oil chamber, note
that pressure may have built up in the chamber. Do
not remove the screws until the pressure has been
fully relieved.
Note
Used oil must be disposed of in accordance with
local regulations.
FM
FM
TM04 6477 0410TM04 6477 0410
Oil filling/venting

English (GB)
19
11.2.3 Removing the seal ring and wear ring
Procedure
1. Turn the pump housing upside-down.
2. Knock the seal ring (pos. 46) out of the pump housing using a
punch.
Fig. 21 Removing the seal ring
3. Clean the pump housing where the seal ring was fitted.
4. Remove the wear ring (pos. 49c) using a screwdriver.
Fig. 22 Removing the wear ring
5. Clean the impeller where the wear ring was fitted.
11.2.4 Removing the shaft seal
Procedure
1. Remove the screws (pos. 188).
2. Remove the cover for oil chamber (pos. 58) using a puller.
3. Remove the screws (pos. 186).
4. Remove the shaft seal (pos. 105) using the puller.
5. Remove the O-ring (pos. 153b).
Procedure (pump with WIO sensor)
1. Remove the screws (pos. 188).
2. Remove the cover for oil chamber (pos. 58) using a puller.
3. Remove the screws (pos. 186).
4. Remove the sensor (pos. 521) and holder (pos. 522) from the
shaft seal.
5. Remove the shaft seal (pos. 105) using the puller.
6. Remove the O-ring (pos. 153b).
11.3 Assembling the pump
11.3.1 Tightening torques and lubricants
Rocol Sapphire Aqua-Sil, product number RM2924 (1 kg).
Shell Ondina 919, product number 96001442 (1 l)
11.3.2 Fitting the shaft seal
Procedure
1. Fit and lubricate the O-ring (pos. 153b) with oil.
2. Slide the shaft seal (pos. 105) gently over the shaft.
3. Fit and tighten the screws (pos. 186).
4. Fit and lubricate the O-ring (pos. 107) in the cover for oil
chamber (pos. 58) with oil.
5. Fit the cover for oil chamber.
6. Fit and tighten the screws (pos. 188).
Procedure (pump with WIO sensor)
1. Fit and lubricate the O-ring (pos. 153b) with oil.
2. Slide the shaft seal (pos. 105) gently over the shaft.
3. Fit the holder (pos. 522) and sensor (pos. 521) with one of the
screws (pos. 186).
4. Fit the second screw and tighten both screws (pos. 186).
5. Fit and lubricate the O-ring (pos. 107) in the cover for oil
chamber (pos. 58) with oil.
6. Check that the sensor is positioned correctly. See 9.4.1 Fitting
the WIO sensor and fig. 13. This is of special importance in
horizontal pumps.
7. Fit the cover for oil chamber.
8. Fit and tighten the screws (pos. 188).
TM02 8420 5103TM02 8422 5103
Pos. Designation Quantity Dimensions Torque
[Nm] Lubricant
92a Screw 1 12 ± 2
118a Screw 2 M8 20 ± 2
M10 30 ± 3
174 Screw 1 4 ± 1
181 Union nut 1 7-pole 50 ± 5
10-pole 75 ± 5
186 Screw 2 7+2-0
182 Screw 4 20 ± 2
187 Screw 4 20 ± 2
188 Screw 2 M8 20 ± 2
M10 30 ± 3
188a Screw 2 M10 50+5-0
M12 75 ± 5
193 Screw 2 16 ± 2
O-rings All Rocol

English (GB)
20
11.3.3 Fitting the seal ring and wear ring
Procedure
1. Lubricate the seal ring (pos. 46) with soapy water.
2. Place the seal ring in the pump housing.
3. Knock the seal ring home in the pump housing using a punch
or a wooden block.
Fig. 23 Fitting the seal ring
4. Place the wear ring (pos. 49c) on the impeller.
5. Knock the wear ring home using a wooden block.
Fig. 24 Fitting the wear ring
11.3.4 Fitting the impeller and pump housing
Procedure
1. Fit the spring (pos. 157) and the key (pos. 9a). Keep the key
in position while the impeller is fitted.
2. Fit the impeller (pos. 49).
3. Fit the washer (pos. 66) and the screw (pos. 188a).
4. Tighten the screw (pos. 188a) to 75 Nm. Hold the impeller
with the strap wrench.
5. Mark the position of the pin on the pump housing.
6. Mark the position of the pin hole on the oil chamber.
7. Fit and lubricate the O-ring (pos. 37) with oil.
8. Fit the stator housing in the pump housing (pos. 50).
9. Fit the clamp (pos. 92).
10. Tighten the screw to 8 Nm.
11. Check that the impeller rotates freely and without drag.
11.4 Oil quantities
The table shows the quantity of oil in the oil chamber of SL1 and
SLV pumps. Oil type: Shell Ondina 919.
11.5 Service kits
For service kits for SL1, SLV, see www.grundfos.com or Service
Kit Catalogue.
11.6 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 to be 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 before it is returned.
Service instruction and service video can be found on
www.grundfos.com.
TM02 8421 5103TM02 8423 5103
Power
[kW] Oil quantity [l]
2-pole
2.2 0.6
3.0 0.6
4.0 1.0
6.0 1.0
7.5 1.0
9.2 1.2
11.0 1.2
4-pole
1.1 0.6
1.3 0.6
1.5 0.6
2.2 0.6
3.0 1.0
4.0 1.0
5.5 1.0
7.5 1.2
Note
Used oil must be disposed of in accordance with
local regulations.
Note
If a pump has been used for a liquid which is
injurious to health or toxic, the pump will be classified
as contaminated.