Wilo Actun FIRST SPU 4 User manual
6083927 Ed.02-12/2017 WH
Pioneering for You
Wilo-Actun FIRST SPU 4
en Installation and operating instructions
fr Notice de montage et de mise en service
es Instrucciones de instalación y funcionamiento
pt Manual de Instalação e funcionamento
el
tr
ru
uk
ar
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4 WILO SE 12-2017 DIN A4
English
1 Introduction 5
1.1 About this document 5
1.3 Copyright 5
1.4 Subject to change 5
1.5 Warranty 5
2 Safety 6
2.1 Instructions and safety instructions 6
2.2 General safety information 6
2.3 Electrical work 7
2.4 Safety and monitoring devices 7
2.5 Conduct during operation 7
2.6 Fluids 8
2.7 Sound pressure 8
3 Transportation and storage 8
3.1 Delivery 8
3.2 Transport 8
3.3 Storage 8
3.4 Return delivery 9
4 Product description 9
4.2 Structure 9
4.3 Technical data 10
4.4 Type key 10
4.5 Scope of delivery 11
4.6 Accessories (optionally available) 11
5 Installation 11
5.1 General 11
5.2 The installation of separately delivered motors 11
5.3 Installation types 11
5.4 Installation 11
5.5 Dry-running protection 14
6 Commissioning 15
6.1 Electrical system 15
6.2 Direction of rotation monitoring 15
6.3 Commissioning 15
6.4 Conduct during operation 16
7 Decommissioning/disposal 16
7.1 Temporary decommissioning 16
7.2 Decommissioning for maintenance work or stor-
age 17
7.3 Recommissioning 17
7.4 Disposal 17
8 Maintenance and repair 18
8.2 Maintenance intervals 18
8.3 Maintenance tasks 18
9
9.1 Faults 19
10 Appendix 20
10.1 Spare parts 20
Installation and operating instructions Wilo-Actun FIRST SPU 4 5
INTRODUCTION English
1 Introduction
1.1 About this document
The language of the original operating instruc-
tions is German. All other languages of these
instructions are translations of the original oper-
ating instructions.
named there without our agreement, this decla-
ration loses its validity.
1.2
All personnel who work on or with the device
electrician. All personnel must be of legal age.
National accident prevention regulations must
also be observed as a basis by the operating and
maintenance personnel.
It must be ensured that personnel have read
and understood these installation and operating
instructions, if necessary, this manual must be
ordered from the manufacturer in the required
language.
This product is not intended for use by persons
(including children) with limited physical, sensory
or mental capacities or without the relevant
experience or knowledge, unless they are super-
vised by a person responsible for their safety and
receive instructions from this person on how to
use the pump.
Children must be supervised in order to ensure
that they do not play with the pump.
1.3 Copyright
These installation and operating instructions have
been copyrighted by the manufacturer. These in-
stallation and operating instructions are intended
for use by installation, operating and mainte-
nance personnel. It contains technical regulations
and drawings which may not be reproduced or
distributed, either completely or in part, or used
for purposes of competition, or shared with oth-
ers without the express consent of the manufac-
turer. The illustrations used may differ from the
original and are only intended as an exemplary
representation of the pumps.
1.4 Subject to change
The manufacturer reserves the right to make
components. These installation and operating
instructions refer to the pump shown on the title
page.
1.5 Warranty
-
eral Terms and Conditions” apply to the warranty.
Any deviations must be contractually agreed and
shall then be given priority.
1.5.1 General
The manufacturer is obliged to correct any de-
fects found in the pumps it sells, provided that
• The quality defects are caused by the materials
used or the way the product was manufactured or
designed.
• The defects were reported in writing to the man-
ufacturer within the agreed warranty period.
• The pump was used only as prescribed.
1.5.2 Warranty period
The duration of the warranty period is stipulated
Any deviations must be contractually agreed!
1.5.3
Only genuine spare parts from the manufacturer
may be used for repairs, replacements, add-ons
parts can seriously damage the pump and/or
injure personnel.
1.5.4 Maintenance
The prescribed maintenance and inspection
work should be carried out regularly. This work
authorised personnel.
1.5.5 Damage to the product
Damage and faults that endanger safety must
personnel. The pump may only be operated if it is
in perfect working order.
In general, repairs should only be carried out by
Wilo customer service!
1.5.6 Exclusion of liability
No warranty is granted and no liability is accepted
for damage to the pump chamber if one or more
•
provided by the operator or customer
• Non-compliance with safety instructions and
and operating instructions
•Improper use
• Incorrect storage and transport
• Improper installation/dismantling
•
• Incorrect repairs
• Inadequate construction site or construction work
• -
ences
• Wear
This means the manufacturer’s liability excludes
all liability for personal injury, material damage or
6 WILO SE 12-2017 DIN A4
English SAFETY
2 Safety
This section lists all the generally applicable
safety instructions and technical information. In
safety instructions and technical information. All
instructions and information must be observed
and followed during the various phases of the
pump’s life cycle (installation, operation, main-
tenance, transport etc.)! The operator is respon-
sible for ensuring that all personnel follow these
instructions and guidelines.
2.1 Instructions and safety instructions
This manual uses instructions and safety in-
structions for preventing injury and damage to
property. To clearly identify them for personnel,
the instructions and safety instructions are dis-
•
the preceding text or section.
•
bold” and always start with a signal word.
• Danger
Serious or fatal injuries can occur!
• Warning
Serious injuries can occur!
• Caution
Injuries can occur!
• Caution (instruction without symbol)
Substantial property damage can occur.
Irreparable damage is possible!
• Safety instructions that refer to personal injury
appear in black and are always accompanied by a
safety symbol. Danger, prohibition or instruction
symbols are used as safety symbols.
Danger symbol, e.g. Electrical current
Symbol for prohibited action, e.g. No entry!
Instruction symbol, e.g. Wear protective
clothing
The safety symbols used conform to the generally
applicable directives and regulations, such as DIN
and ANSI.
• Safety instructions that only refer to proper-
ty damage are printed in grey, without safety
symbols.
2.2 General safety information
• When installing or removing the pump, never
work alone in rooms and pump chambers. A
second person must always be present.
• The pump must always be switched off before
any work is performed on it (assembly, disman-
tling, maintenance, installation). The pump must
be disconnected from the electrical system and
secured against being switched on again. All ro-
tating parts must have come to a standstill.
• The operator must report any faults or irregulari-
ties that occur to a line manager immediately.
• The end-user must shut down the equipment im-
mediately if defects occur that represent a safety
• Failure of the safety and/or monitoring devices
• Damage to important parts
• Damage to electrical equipment, cables and
insulation
•Tools and other objects should only be kept in
their designated places to ensure safe operation.
•
working in enclosed spaces.
• When welding and/or working with electronic
devices, make sure there is no risk of explosion.
• Only lifting gear may be used that is legally de-
• The lifting gear must be kept safely and must be
suitable for the conditions of use (weather, hook-
ing unit, load, etc.).
• Mobile equipment for lifting loads should be
used in such a way that it is guaranteed to remain
stable during operation.
• When using mobile equipment for lifting
non-guided loads, take action to prevent tipping,
shifting, sliding, etc.
• Measures should be taken to ensure that no
person is ever directly beneath a suspended
load. Furthermore, it is also prohibited to move
suspended loads over workplaces where people
are present.
• If mobile equipment is used for lifting loads, a
second person should be present to coordinate
the procedure if required (for example, if the
• The load to be lifted must be transported so that
no-one will be injured if there is a power failure.
Furthermore, if such work is being performed
outdoors it must be halted if the weather condi-
tions worsen.
These instructions must be strictly observed.
Non-observance can result in injury or substan-
tial property damage.
Installation and operating instructions Wilo-Actun FIRST SPU 4 7
SAFETY English
2.3 Electrical work
DANGER due to electrical current!
Incorrectly performed electrical work can
result in fatal injury! This work may only be
CAUTION: moisture!
Moisture penetrating the cable will damage
both the pump and the cable. Never immerse
from moisture. Unused wires must be insu-
lated!
The pumps are operated with alternating
current or three-phase current. The governing
national directives, standards and regulations
local energy supply company must be observed.
The operator must be informed on the pump
power supply cable and how to cut off the
supply. It is advisable to install a residual-current
device (RCD). If there is a possibility that people
can come into contact with the pump and the
-
tion must also be equipped with a residual-
current device (RCD).
be observed during connection. The technical
pumps must always be earthed.
If the pump has been switched off by a protec-
tive device, it must not be switched on again
until the fault has been corrected.
When the pump is connected to the electrical
control panel, particularly when electronic devices
such as soft start-up control or frequency con-
verters are used, the switchgear manufacturer’s
the electromagnetic compatibility (EMC) require-
ments. Special separate shielding measures
-
sary for the power supply and control cables.
Changes to the cable length or the cable
amount of EMC interference.
Use of an interference suppressor is recom-
mended if interference is caused in other
devices!
Connections may only be made provided the
switchgear meets the harmonised EU stand-
ards. Mobile radio equipment may cause system
malfunctions.
Earthing connection
In general, all of our products (units including
protective units and operating point, auxiliary
lifting device) must be earthed. If there is a pos-
sibility that people can come into contact with
sites), the connection must also be equipped with
a residual-current device (RCD).
The pump units are submersible and correspond
to the norm of the IP68 protection class.
found on the switchgear housing and in corre-
sponding Installation and operating instructions.
2.4 Safety and monitoring devices
Our products may be equipped with mechani-
cal (e.g. suction strainer) and/or electrical
(e.g. thermal sensors, sealing chamber monitor-
ing etc.) safety- and monitoring devices. These
devices must be mounted and connected.
Before commissioning, electrical devices, such
for correct operation.
Please note that for to this end, certain devices
require a switchgear, e.g. PTC thermistor and
PT100 sensor for trouble-free operation. This
switchgear can be obtained from the manufac-
Personnel must be informed about the devices
used and how they function.
CAUTION! Risk of damage to the product!
Never operate the product if the safety and
monitoring devices have been removed,
damaged, and/or if they do not work!
2.5 Conduct during operation
When operating the pump, always follow the
locally applicable laws and regulations for work
safety, accident prevention and handling elec-
trical machinery. To help ensure safe working
practice, the responsibilities of employees should
are responsible for ensuring that regulations are
observed.
The pump is equipped with moving parts. During
operation, these parts rotate in order to pump the
very sharp edges forming on the moving parts.
WARNING rotating parts!
The rotating parts can crush and sever limbs.
Never reach into the hydraulics or touch
the rotating parts when the machine is in
operation. Before performing maintenance or
repairs, switch off the pump and wait for the
rotating parts to come to a standstill!
8 WILO SE 12-2017 DIN A4
English TRANSPORTATION AND STORAGE
2.6 Fluids
-
rosiveness, abrasiveness, dry matter content and
in many other aspects. Generally, our pumps can
be used for many applications. Please note that if
requirements change (density, viscosity or general
composition), this can also affect many operating
parameters of the pump.
When using and/or replacing the pump in a differ-
•
contaminated by this oil if the mechanical seal is
defective.
• When used in drinking water applications, all the
-
pose. This must be checked in accordance with
the local regulations and laws.
The pumps must not be used in wastewater and
health.
2.7 Sound pressure
The submersible pump generates a sound-pres-
However, the actual sound-pressure level
depends on several factors. These include, for
example, the installation depth, installation,
immersion depth, etc.
We recommend that the operator should take an
additional measurement at the workplace once
the unit is running at its duty point and under all
operating conditions.
CAUTION: wear ear defenders!
According to applicable laws and regula-
tions, ear protection must be worn if the
end-user must make sure that this is complied
with!
2.8
3 Transportation and storage
3.1 Delivery
On receiving the consignment, check immediately
that this is complete and undamaged. If any parts
are damaged or missing, the transport company
of delivery since claims cannot be made after-
wards.
Damage to parts must be noted on the freight
documentation.
3.2 Transport
Only the appropriate and approved lifting gear,
means of transportation and hoisting gear may
be used for transportation. These must have
the pump can be transported safely. When using
chains, these are to be secured against slipping.
must follow all applicable national safety regula-
tions during the work.
The pump is delivered by the manufacturer or
shipping agency in suitable packaging. This
normally precludes the possibility of damage oc-
curring during transportation and storage. Store
the packaging safely for reuse if the product is
frequently used at different locations.
3.3 Storage
Newly delivered submersible pumps are prepared
in such a way that they can be stored for at
thoroughly before it is put into temporary stor-
age!
Observe the following when putting into
storage:
• -
cure it against slipping and falling over. Submersi-
Otherwise, impermissible bending tensions can
arise in the hydraulics and the pump may be
damaged. In order to avoid damage, support the
hydraulics accordingly!
DANGER due to risk of falling over!
Never set the unit down unsecured. If the
pump falls over, there is a risk of injury!
• Submersible pumps can be stored at tempera-
be dry. We recommend a frost-protected room for
• It is not permissible to store the submersible
pump in rooms where welding work is carried out,
because the resulting gases or radiation can dam-
age the elastomer components and coating.
• The pump’s suction and pressure connections
should be permanently sealed to prevent con-
tamination.
• The power supply cables should be protected
against kinking, damage, and moisture.
DANGER due to electrical current!
Damaged power supply cables can cause fatal
injury! Defective cables must be replaced by a
CAUTION: moisture!
Moisture penetrating the cable will damage
both the pump and the cable. For this reason,
any other liquid.
•The submersible pump must be protected from
direct sunlight, heat, dust, and frost.
• If the submersible pump has been stored for a
long period of time, it should be cleaned of impu-
rities such as dust and oil residue before commis-
sioning. Check the impeller for ease of movement.
Installation and operating instructions Wilo-Actun FIRST SPU 4 9
PRODUCT DESCRIPTION English
Note:
Elastomer parts and coating are subject to natural
brittleness. If the product is to be put in storage
-
ing these parts and replacing them as necessary.
Consult the manufacturer for further details.
motor, etc.) should be checked and topped up,
as necessary.
3.4 Return delivery
Pumps that are returned to the factory must be
properly packaged. This means that impurities
have been removed from the pump and that it has
For shipping, the parts must be packed in tear-
manner that they are tightly sealed and leak-
proof. Furthermore, the packaging must protect
the pump from damage during transportation.
If you have any questions, please contact the
manufacturer.
4 Product description
4.1
DANGER
When using the pump in swimming pools or
other basins that can be entered, there is a
risk of electrocution. Note:
• Use is strictly forbidden if there are people in
the basin!
• If there are no people in the basin, protec-
tive measures must be taken according to
DANGER
It is strictly prohibited to pump explosive
The submersible pumps are suitable for:
• Water supply from boreholes, wells and rainwater
storage tanks
• Domestic water supply, sprinkling and irrigation
• -
sive constituents
Submersible pumps must not be used for
pumping:
• Wastewater
• Sewage/faeces
• Untreated sewage
Intended use also includes compliance with this
manual. Any other use is regarded as non-compli-
ant with the intended use.
4.1.1 Pumping drinking water
When used to pump drinking water, the local
guidelines/laws/regulations must be checked to
establish whether the pump is suitable for this
application.
of TrinkwV and are not approved in accordance
with ACS or local guidelines e.g. KTW and elasto-
mer guidelines.
4.2 Structure
The Wilo-Actun FIRST SPU 4.. is a submersible
pump that is immersed in a stationary installation,
Description
1 Suction piece 3 Hydraulics housing
2 Motor housing 4 Pressure connection
4.2.1 Hydraulics
Multistage hydraulics with radial or semi-axial
impeller in sectional construction. The hydraulics
housing and the pump shaft are made of stainless
steel and the impellers are made of Noryl. The
connection on the pressure side is designed as
a vertical female thread and with an integrated
non-return valve.
pressure and a minimum coverage must be
ensured at all times.
4.2.2 Motor
or three-phase current motors for direct starting.
The motor housing is made of stainless steel. The
motors have a 4" Nema connection.
For a more detailed description, see the Installa-
tion and operating instructions of the motor.
4.2.3 Seal
The sealing between the motor and hydraulics is
achieved by a mechanical seal.
10 WILO SE 12-2017 DIN A4
English PRODUCT DESCRIPTION
4.3 Technical data
Submersible pump
Mains connection See motor rating plate
Rated power P2 See motor rating plate
Required shaft power According to hydraulics type key,
see rating plate
Max. delivery head See rating plate
See rating plate
Activation type
Direct
1~ with start capacitor
Fluid temperature
Protection class See the Installation and operating instructions of the motor
Insulation class See the Installation and operating instructions of the motor
Speed See rating plate
Max. immersion depth
Switching frequency See the Installation and operating instructions of the motor
Max. sand content
Pressure connection
See the Installation and operating instructions of the motor
Operating modes
See the Installation and operating instructions of the motor
4.4 Type key
4.4.1 Hydraulics
Example: Actun FIRST SPU4.01-10-B-50-0,37
Actun Family name for borehole pumps
FIRST Series (basic)
SPU
Submersible Pump for Universal use
(with thermoplastic impellers)
4Nominal diameter in inches
01
10 Number of stages
BSeries generation
50 Underlying mains voltage
0,37 (Required) rated power in kW
4.4.2 Unit
Example: Actun FIRST SPU4.01-10-B-50-0,37/XI4-50-
1-230
Actun Family name for borehole pumps
FIRST Series (basic)
SPU
Submersible Pump for Universal use
(with thermoplastic impellers)
4Nominal diameter in inches
01
10 Number of stages
BSeries generation
XI
mainly made of stainless steel (inox)
4Nominal motor diameter in inches
50 Underlying mains voltage
0,37 (Required) rated power in kW
Installation and operating instructions Wilo-Actun FIRST SPU 4 11
INSTALLATION English
4.5 Scope of delivery
Hydraulics:
• Hydraulics SPU 4..
• Installation and operating instructions
Unit:
•
of motor)
•Installation and operating instructions of the
hydraulics
• Installation and operating instructions of the
motor
4.6
• Cooling jacket
• Start-up device for single-phase current version
• Switchgears
•Pressure switch
• Level sensors
• Sealing set for motor cable extension
• Diaphragm pressure vessel
5 Installation
In order to prevent damage to the device or seri-
•
instructions at all times.
•The submersible pump should be inspected for
transport damage before any installation work is
carried out.
5.1 General
In the event of pumping through longer pressure
pipes (particularly in the case of longer ascending
pipes), pressure surges can occur.
Pressure surges can result in destruction of the
closure. Water hammers can be reduced or pre-
vented by implementing suitable measures (e.g.
non-return valves with an adjustable closing time,
electrically actuated shut-off devices, special
routing of pressure pipe).
After pumping chalky water, the device should be
and avoid related breakdowns later on.
If you are using a level control device, observe the
minimum water coverage. Air pockets in the hy-
draulics housing or pipe system must be avoided
at all costs and must be removed using suitable
ventilation systems. Protect the submersible
pump from frost.
5.2 The installation of separately delivered motors
• After unpacking the pump hydraulics, remove the
cable protection and the suction strainer from the
pump hydraulics.
• Remove the thread protection caps, nuts and
spring washers from the motor.
•
level it with the motor shaft.
• Turn the motor shaft by hand before installation
to check whether it moves freely.
• Lubricate the internal teeth of the coupling with
acid-free, waterproof grease.
• Remove any thread-protection caps, hexagon
nuts and spring washers there may be from the
motor bolts.
• Align the cable protection of the hydraulics with
the motor cable outlet and connect the pump and
motor.
• Place the spring washers and hexagon nuts on
the motor bolts.
• Tighten the nuts crosswise (maximum
CAUTION! Risk of damage to the product!
The motor and the hydraulics must not be
connected rigidly, as otherwise the motor and
pump will be damaged.
• Check radial play and axial play of the motor
shaft.
• Put the cable into the cable protection and mount
the cable protection on the hydraulics.
• Mount the suction strainer.
5.3 Installation types
•Vertical stationary installation, immersed
•
only in connection with a cooling jacket!
5.4 Installation
DANGER due to risk of falling!
When installing the pump and its accesso-
ries, work is sometimes performed directly at
the edge of the well or tank. Carelessness or
choosing inappropriate clothing could result
in a fall. There is a risk of fatal injury! Take all
of the safety precautions required to prevent
falls.
• -
sonnel and electrical work must be performed by
• The operating space must be clean, free of coarse
solids, dry, frost-free and, if necessary, decon-
taminated and suitable for the particular pump.
submersible pump’s maximum output in order to
prevent dry run and/or air intake.
• When working in tanks, wells or boreholes, a sec-
ond person must be present for safety reasons.
Take the necessary countermeasures if there is a
risk of toxic or suffocating gases collecting!
• Ensure that lifting equipment can be installed
without any trouble, since this is required for
assembly/dismantling of the pump. It must be
possible to reach the pump safely in its operating
and storage locations using the lifting equipment.
The set-down location must have a solid bearing
surface. For transporting the pump, the lifting
gear must be secured to the prescribed lifting
eyelets. When using chains, these must be con-
12 WILO SE 12-2017 DIN A4
English INSTALLATION
nected to the lifting eyes using a shackle. Lifting
gear must be technically approved.
• Power supply cables must be laid in such a way
that safe operation and trouble-free installation/
dismantling are possible at all times. Never carry
or pull the pump by the power supply cable.
Check the cable cross-section and the routing
type chosen. Make sure that the cable length is
• When using switchgear, the corresponding
protection class should be observed. Switchgears
are to be generally attached so that they are
• Structural components and foundations must be
or the supplier is responsible for provision of
the foundations and their suitability in terms of
dimensions, stability and strength!
• Check for completeness and correctness of the
consulting documents (installation plans, design
• Observe all regulations, rules and laws on working
loads and under suspended loads. Use the corre-
sponding protective clothing/equipment.
• Observe the national applicable accident preven-
tion and safety regulations of trade associations.
• To achieve the necessary cooling, the pump
must always be immersed when in operation.
The minimum water submersion must be en-
sured at all times!
• Dry running of the pump is strictly forbid-
recommend installing additional dry-running
protection!
• No additional non-return valve may be used on
the pressure side. This would result in system
malfunction.
5.4.1 Vertical installation of the unit
Installation
1 Unit 7 Level sensors
2 Ascending pipe 8 Dry-running protection
system!
3 Switchgear 9 Power supply cable
4 Shut-off device 10 Mains connection
5 Well cover Ls
Static water level
(pump is decommis-
sioned)
6 Minimum submersion Ld Dynamic water level
(pump in operation)
In this installation method, the submersible pump
is installed directly on the ascending pipe. The
installation depth is determined by the length
of the ascending pipe. In narrow well shafts, a
centring device must be used because the pump
must not come into contact with the walls of the
well as this could damage the cable and pump.
The motor must not sit at the bottom of the well
as this can lead to tension and slagging of the
motor. This would mean that heat dissipation
is no longer guaranteed and the motor could
overheat.
In addition, the pump should not be installed
currents can draw up sand and solid material,
meaning that the motor cooling is no longer
guaranteed. This would result in increased wear of
the hydraulics. To prevent this, it may be neces-
sary to use a cooling jacket or install the pump in
the vicinity of unperforated well casings.
Installation with threaded pipe
Installation
1 Unit 7 Square timber (2x)
2 Ascending pipe 8 Cable clip
3 Support clamp 9 Mounting bracket
4 Lifting equipment Ls
Static water level
(pump is decommis-
sioned)
5 Power supply cable Ld Dynamic water level
(pump in operation)
6 Minimum submersion
DANGER! Risk of fatal injury!
The pump itself and pipe can be extremely
heavy. Falling parts pose a risk of cuts, crush
injuries, bruises or impacts, which can be
fatal. Damaged lifting equipment can fail.
• Always use suitable lifting equipment and
secure parts against falling.
• Ensure that the retaining cables do not display
signs of kinking.
• Never stand underneath a suspended load.
• Make sure the pump and lifting equipment is
securely positioned and stable during storage
and transport as well as prior to all installation
and other assembly work.
Installation and operating instructions Wilo-Actun FIRST SPU 4 13
INSTALLATION English
Note the following when installing
• The threaded pipes must be screwed into each
• When screwing in the pipes, make sure that the
pipes are aligned (not cross-threaded) to ensure
that the thread is not damaged.
• Note the submersible pump’s direction of rota-
tion and use suitable threaded pipes (right-hand
or left-hand thread) so that the pipes do not
loosen during operation.
• The threaded pipes must be secured against
accidental loosening.
• The support clamp which is required as a
support during installation, is always mounted
directly below the connection points. Whilst
doing so, tighten the turnbuckles evenly until
the clamp is tight against the pipe (the halves of
the support clamp must not touch!).
Metallic pressure pipes must be integrated
into the potential equalisation according to the
locally applicable regulations and the accepted
• As external pressure switching can have an insu-
lating effect, depending on the design, make
-
unit is integrated into the potential equalisation.
•Note the large area impedance connection of
the contacts!
1. Lay two scantlings over the well.
The support clamps will be placed on these
subsequently, therefore, the scantlings must have
shafts, a centring device must be used because
the product must not come into contact with the
walls of the well.
2. Extend the power supply cable connected at the
factory to the necessary length, in accordance
with the space available in the borehole. To do
this, use heat-shrink tubing or a cast resin con-
nection for the required length.
3. Place the submersible pump vertically and secure
it against slipping and falling over.
4.
of the pipe, hook the hoisting gear onto the
5. Screw in the free end of the ascending pipe on
the pressure port of the submersible pump and
tighten.
6.
discharge port using a cable clip.
7. Lift the unit with the pipe, swing it over the well
and lower it until the support clamp on the as-
cending pipe can be loosely attached. While doing
this make sure that the cable is kept away from
the support clamp on the ascending pipe so that
it is not crushed.
8. Continue to lower the unit until the upper thread-
clamp.
9. Tighten the support clamp.
10. Lower the system until the support bracket is
resting on the scantlings laid out ready for sup-
port.
11. Release the mounting bracket from the pipe and
attach it to the next ascending pipe.
12. Lift the pipe, swing it over the well and screw the
free end into the ascending pipe and tighten.
WARNING: danger of crushing!
When removing the support clamp, the entire
weight rests on the hoisting gear and the pipe
sags down. This can result in severe crushing!
Before removing the support clamp, ensure
that the hoisting gear retaining cable is under
tension!
13.
the cable above and below the pipe adaptor with
Where there are several cables, each cable must
be secured individually.
14.
installed at the desired depth.
15. Mount the well cover on the last pipe.
16. Secure the well cover tightly.
pressure connection and then lowered into the
borehole together with the pump.
• Nylon or stainless steel guys are used to lower the
pump.
•
the complete system (pump, piping, cable, water
column).
• The guy must be fastened to the attachment
points (eyelets) provided on the pressure port
for that purpose. If these suspension points are
attachment points must be installed.
DANGER
The guy must not be wound around the pres-
result in slipping or the piping might become
separated. There is an increased risk of injury!
• Always use suitable lifting equipment and
secure parts against falling.
• Ensure that the retaining cable is in perfect
condition and does not display signs of kink-
ing.
• Always fasten the retaining cable to the pre-
scribed attachment points!
• Never stand underneath a suspended load.
• Make sure the pump and lifting equipment is
securely positioned and stable during storage
and transport as well as prior to all installation
and other assembly work.
14 WILO SE 12-2017 DIN A4
English INSTALLATION
5.4.2
Installation
1 Unit 7 Operating space
2 Pressure pipe 8 Water tank
3 Pressure vessel 9 Inlet
4 Cooling shroud 10
5 Minimum water level 11 Dry-running protection
6 Level sensors
This installation method is only permissible in
connection with a cooling jacket. The pump is
installed directly in the water tank/reservoir/tank
-
ing jacket’s supports have to be installed at the
the unit. For more information, see the Installa-
tion and operating instructions for the respective
cooling jacket.
The connected piping must be self-supporting,
i.e. it must not be supported by the unit.
and piping are installed separately. Make sure that
the pump pressure connection and the pipe are at
the same level.
1. Drill the mounting holes for the support into the
The information regarding the anchor bolts, hole
the corresponding instructions. Ensure that the
screws and wall plugs are the correct strength.
2.
pump into the correct position using suitable
hoisting gear.
3. -
tion material provided and ensure that the rating
plate is face up.
4.
system can be mounted or a previously installed
pipe system can be attached. Make sure that the
pressure connections are at the same height.
5. Connect the discharge pipe to the pressure con-
nection. The threaded connection must be sealed.
Make sure that the pipe system was installed
vibration-free and stress-free (if necessary, use
elastic adaptors).
6. Lay the cable in such a way that it does not pose
a danger to anyone (maintenance personnel, etc.)
at any time (during operation, during mainte-
nance work, etc.). The power supply cables must
not be damaged. The electrical connection must
be carried out by an authorised expert.
5.4.3 Further installation examples
Installation types
1 Unit 7 Mains connection
2 Motor connection cable 8
Pressure switching,
Diaphragm pressure
vessel
Pressure gauge
Stop valve
3 Retaining cable 9 T-connector
4 Screwed connection 10
diaphragm pressure
vessel
5 Screwed connection 11 Connecting piece on
pressure manometer
6 Switch or switchgear
Depending on the application and operating
conditions, we recommend the use of automatic
level checking and pump controls or pressure
switching.
These measures are to ensure operational relia-
bility by offering dry-running protection, keeping
the switching frequency low and by helping to
avoid pressure pulses.
In addition, the accessories shown in the example
provide the option of monitoring the unit (e.g. via
indicators on the control device or a manometer).
5.5 Dry-running protection
Therefore, the motor must always be immersed.
In addition, make sure that no air enters the hy-
draulics housing. The pump must therefore always
the hydraulics housing. For optimum operational
reliability, we recommend installing a dry-running
protection system.
Dry-running protection is provided with the help
of electrodes or level sensors. The signal trans-
switches off the pump when the water level falls
below the minimum water submersion.
If the dry-running protection only includes one
-
on and off constantly!
This can result in the maximum number of
exceeded and the motor overheating.
Installation and operating instructions Wilo-Actun FIRST SPU 4 15
COMMISSIONING English
6 Commissioning
important instructions for the operating person-
nel for starting up and operating the pump.
The following general conditions must always be
• Installation type, including cooling (does a cooling
jacket have to be installed?)
• Operating mode (see the Installation and operat-
ing instructions of the motor)
•Minimum water submersion/max. immersion
depth
These general conditions should also be
checked after a lengthy mothballing period and
any defects detected are to be remedied!
Always keep this manual either at the pump or in
a place specially reserved for it, where it is acces-
sible for the all operating personnel at all times.
In order to prevent damage or serious injury when
commissioning the pump, the following must be
• Commissioning of the pump may only be carried
-
ance with the safety instructions.
• All persons working on or with the pump must
have received, read and understood this manual.
• All safety devices and emergency cut-outs must
be connected and checked to ensure that they
work properly.
• Electrical engineering and mechanical adjust-
•
operating conditions.
•The work area of the pump is not a recreational
area and is to be kept free of people! No persons
are allowed in the work area during start-up or
operation.
• Make sure a second person is present at all times
when you are working in wells and tanks. If there
-
tion must be ensured.
6.1 Electrical system
For details on the electrical connection, see the
Installation and operating instructions of the
motor.
• The device is connected and the power supply
-
lines and applicable national regulations.
Observe the direction of rotation! If the direction
of rotation is incorrect, the pump will not perform
• The device must be properly protected and
earthed.
• Make sure all monitoring devices are connected
and have been tested.
DANGER due to electrical current!
Electrical current can cause fatal injuries if not
dealt with correctly! All connections must be
6.2 Direction of rotation monitoring
The motor is checked and set at the factory to
ensure that the direction of rotation (suitable for
Wilo hydraulics) is correct. The connection must
be made according to the wiring diagram.
Check that the motor rotates in the correct direc-
tion before submersion.
A test run may only be performed under general
operating conditions. Switching on a motor/unit
that is not immersed, is forbidden!
6.2.1 Direction of rotation check
The direction of rotation must be checked with a
direction of rotation.
The product is not approved for operation with a
6.2.2 If the direction of rotation is incorrect
If a Wilo switchgear is used
Wilo switchgears are designed so that the
connected products are operated in the correct
direction of rotation.
Switchgears provided by the customer
In the event of incorrect direction of rotation for
of the power supply on mains side to the switch-
gear need to be swapped over.
6.3 Commissioning
The work area of the unit is not a recreation-
al area and is to be kept free of people! No
persons are allowed in the work area during
start-up or operation.
-
-
lation” section and an insulation check must be
carried out as described in the maintenance and
repair section.
Installation and operating instructions of the
motor.
When using switchgear and/or plugs (accessories)
observe the IP protection class.
6.3.1 Initial commissioning
Before initial commissioning of the unit check
• The unit has been correctly installed and con-
nected.
• An insulation check was carried out.
• External switchgear (accessories) have been
correctly set.
•
16 WILO SE 12-2017 DIN A4
English DECOMMISSIONING/DISPOSAL
6.3.2 Ventilate the unit and piping
• Open all of the slide valves in the pressure pipe.
• Switch on the unit.
The air escapes through the corresponding air
vent valves. If no air vent valves have been in-
stalled, open the taps so that the air can escape!
6.3.3 Before switching on
Check the following prior to switching on the
• Proper and secure cable routing (e.g. no loops)
•
•
•
• Immersion depth
•Ambient temperature of external switchgear
(accessories)
• The suction chamber, pump sump and the pipe
are free of dirt.
• The pipe and product have been rinsed before
connecting to the supply network.
• An insulation check was carried out. For details,
•
be no air in the housing. It can be vented by suit-
able venting devices in the system or, if available,
using venting screws on the pressure port.
• Half open the slide valve on the pressure side
during initial commissioning to ventilate the pipe
as necessary.
• The level control device or the installed dry-run-
ning protection works.
The use of an electrically operated shut-off
device can minimise or prevent water hammering.
The unit must can be switched on when the slide
valves are in the restricted or closed position.
valves closed or in a severely restricted position
and dry running are forbidden!
6.3.4 After switching on
start-up procedure. Once the start-up procedure
has completed, the operating current may no
longer exceed the rated current.
If the motor does not start immediately after the
pump is switched on, it must be switched off
starting up again. If the fault recurs, the unit must
be switched off again immediately. The pump
should only be restarted once the fault has been
6.4 Conduct during operation
When operating the pump, always follow the
locally applicable laws and regulations for work
safety, accident prevention and handling electri-
the responsibilities of employees to help ensure
safe working practice. All personnel are responsi-
ble for ensuring that regulations are observed.
The pump is equipped with moving parts. During
operation, these parts rotate in order to pump the
very sharp edges forming on the moving parts.
WARNING rotating parts!
The rotating parts can crush and sever limbs.
Never reach into the hydraulics or touch
the rotating parts when the machine is in
operation. Before performing maintenance or
repairs, switch off the pump and wait for the
rotating parts to come to a standstill!
•
of the rated voltage)
•
rated frequency)
• Current consumption (permissible deviation be-
• Switching frequency (see technical data)
•
• Minimum water submersion
• Quiet and low-vibration running
•Gate valves in the pressure pipe must be open
7 Decommissioning/disposal
All work must be carried out with the greatest
care.
Proper protective clothing is to be worn.
When carrying out work in wells and/or tanks,
the respective local protection measures must be
observed in all cases. A second person must be
present for safety reasons.
Only auxiliary lifting devices that are in a techni-
cally perfect condition and lifting gear that has
and raising the pump.
RISK of fatal injury due to malfunction!
Lifting gear and lifting devices must be in a
perfect technical condition. Work may only
commence if the lifting device has been
checked and found to be in perfect working
order. If it is not inspected, fatal injuries may
result!
7.1 Temporary decommissioning
For this type of shutdown, the pump remains
installed and is not cut off from the electricity
supply. In the event of temporary decommission-
ing the pump must remain completely immersed
so that it is protected from frost and ice. Ensure
that the temperature in the operating space and
This ensures that the pump is always ready for
operation. For extended downtime, a regular
should be carried out.
Installation and operating instructions Wilo-Actun FIRST SPU 4 17
DECOMMISSIONING/DISPOSAL English
CAUTION!
Only perform function runs under the proper
operating and usage conditions. Never run the
machine dry! Non-compliance can result in
irreparable damage!
7.2 Decommissioning for maintenance work or
storage
• Switch off the system and secure it against being
switched on again by unauthorised persons.
•
from the mains.
• Close the slide valves in the pressure pipe down-
stream of the well cover.
You can then begin disassembly (do not pull the
cable!).
DANGER due to toxic substances!
must always be decontaminated before
undertaking any other work! Otherwise there
is a risk of fatal injury! Wear the necessary
physical protection equipment!
CAUTION: risk of burns!
The housing parts can heat up to well
switching it off, let the pump cool down to
ambient temperature.
7.2.1 Removal
In the case of vertical installation, disassembly is
• Remove the well cover.
• Dismantle the ascending pipe and unit in the
reverse order to installation.
When dimensioning and selecting the lifting
equipment, note that during dismantling, the
has to be lifted!
tank/reservoir has to be drained completely.
Thereafter the pump can be released from the
pressure pipe and disassembled.
7.2.2 Return delivery/storage
For shipping, the parts must be packed in tear-
manner that they are tightly sealed and leak-
proof. The parts may only be shipped by forward-
ing agents who have been instructed appropri-
ately.
Refer also to the “Transport and storage”
section!
7.3 Recommissioning
Before recommissioning, the device must be
cleaned of dust and contaminants. Maintenance
measures and work must be carried out subse-
repair” section.
After completing maintenance, the product can
be installed and connected to the mains power
The submersible pump may only be switched on
again if it is in proper working order.
7.4 Disposal
7.4.1
Oils and lubricants must be collected in appropri-
ate containers and properly disposed of in terms
-
of the German Waste Act or the applicable local
guidelines.
Water-glycol mixtures are categorised in wa-
(about propanediol and propylene glycol) and/or
local guidelines.
7.4.2 Protective clothing
Protective clothing worn for cleaning and main-
tenance work is to be disposed of in accordance
7.4.3 Information on the collection of used electrical
and electronic products
Proper disposal and appropriate recycling of this
product prevents damage to the environment and
danger to your personal health.
Disposal in domestic waste is forbidden!
In the European Union, this symbol can appear
on the product, the packaging or the accompa-
nying documentation. It means that the electri-
cal and electronic products in question must not
be disposed of with domestic waste.
To ensure proper handling, recycling and disposal
of the used products in question, please note the
• Only hand over these products at designated,
• Observe the locally applicable regulations!
Please consult your local municipality, the nearest
waste disposal site, or the dealer who sold the
product to you for information on proper disposal.
Further recycling information can be found at
www.wilo-recycling.com.
18 WILO SE 12-2017 DIN A4
English MAINTENANCE AND REPAIR
8 Maintenance and repair
Before carrying out any maintenance or repair
work, deactivate and dismantle the product as
section.
After maintenance or repair work, the product
must be installed and connected as described in
section.
Maintenance and repair work must be carried out
by an authorised service centre, the Wilo custom-
Maintenance or repair work and/or construc-
tional changes that are not listed in these
Installation and operating instructions may
only be carried out by the manufacturer or by
authorised service centres.
DANGER due to electrical current!
There is a risk of fatal injury from electric
shock when working on electrical devices.
• For all maintenance or repair work, the unit
must be disconnected from the mains and
secured against being switched on again unin-
tentionally or without authorisation.
• Damage to the power supply cable may only
Observe the following points:
• This manual must be available to and observed
by the maintenance staff. Only maintenance
work and maintenance measures described in this
manual may be carried out.
• When carrying out work in basins and/or tanks,
the respective local protection measures must be
observed in all cases. A second person must be
present for safety reasons.
• Lifting devices in perfect technical condition and
lifting and lowering the device.
Make sure that the lifting gear, ropes and the
lifting device’s safety devices are in perfect
working order. Work may only commence if the
lifting device has been found to be in a techni-
cally sound condition. If it is not inspected, fatal
injuries may result!
• Electrical work on the device and the system must
fuses must be replaced immediately. These must
used.
•
-
ed.
•
be decontaminated.
• In addition, make sure that no gases form (or are
•
premises and consult a doctor immediately!
• Make sure that the necessary tools and materials
are available. Order and cleanliness ensure safe
and smooth work on the product.
• Remove any used cleaning materials and tools
from the unit.
Store all materials and tools in the intended place.
•
be collected in suitable containers and disposed
-
and 5b of the German Waste Act). Wear ap-
propriate protective clothing when perform-
ing cleaning and maintenance work. It is to be
disposed of in accordance with the German Waste
To do so, also observe the local laws and guide-
lines!
• Only the lubricants stipulated by the manufac-
turer may be used. Oil and lubricants may not be
mixed.
• Use only genuine parts from the manufacturer.
8.1
checked by the manufacturer.
8.2 Maintenance intervals
Overview of the required maintenance intervals.
8.2.1 Before initial commissioning or after lengthy
storage
• Insulation resistance check
• Functional inspection of safety and monitoring
devices
8.3 Maintenance tasks
8.3.1 Insulation resistance check
To check the insulation resistance, the power
supply cable must be disconnected. Subsequent-
ly, this can be measured with an insulation tester
•
•
If the insulation resistance is too low, it is possi-
ble that moisture has penetrated the cable and/
or motor. Do not connect the device again and
consult the manufacturer!
8.3.2 Functional inspection of safety and monitoring
devices
Monitoring devices include the temperature sen-
sors in the motor, sealing chamber monitoring,
motor protection relay, overvoltage relay, etc.
Installation and operating instructions Wilo-Actun FIRST SPU 4 19
TROUBLESHOOTING AND RECTIFICATION English
Generally, motor protection relays, overvoltage
relays and other triggers can be manually trig-
gered for test purposes.
9
In order to prevent damage to property and
serious injury when repairing faults on the unit,
• Only attempt to remedy a fault if you have
carried out by trained specialist personnel. Elec-
trical work, for example, must be performed by a
trained electrician.
• Always secure the unit against an accidental
restart by disconnecting it from the mains. Take
appropriate safety precautions.
• Always have a second person on hand to ensure
the unit is switched off in an emergency.
• Secure moving parts to prevent injury.
•
at the operator’s own risk and release the manu-
facturer from any warranty obligations!
DANGER due to electrical current!
Electrical current can cause fatal injuries if not
dealt with correctly! If this error is displayed,
the connection must be checked and repaired
9.1 Faults
9.1.1 Fault: The unit will not start
1. Electrical supply interrupted, short-circuit or
earth fault in the cable and/or motor winding
• Have the motor and wires checked by a specialist
and replaced if necessary
2. Tripping of fuses, motor protection switch and/or
monitoring devices
• Have a specialist inspect the connections and
modify them as necessary
• Fit or adjust the motor protection switches and
and reset monitoring devices
• Check that the impeller turns freely. If necessary
clean it and free it up
9.1.2 Fault: The unit starts, but the motor protection
switch triggers shortly after commissioning
1. The thermal trip on the motor protection switch is
incorrectly selected and set
• Have a specialist compare the chosen trip and
correct it as necessary
2. Increased current consumption due to major
voltage drop
• Have an electrician check the voltage on each
phase and rewire if necessary
3. 2-phase operation
•Have a specialist inspect the connection and
correct it as necessary
4. Excessive voltage differences between
• Have a specialist inspect the connection and
switching system and correct it as necessary
5. Incorrect direction of rotation
•
6. Impeller slowed by accumulation, clogging and/or
solid matter, increased current consumption
• Switch off the unit, secure it against being
switched back on again, free the impeller and
clean the suction port
7. Fluid density is too high
•Contact the manufacturer
9.1.3 Fault: Unit is running but not pumping
1.
• Open inlet for tank or slide valve
2. Inlet blocked
• Clean the supply line, slide valve, suction piece,
suction port or suction strainer
3. Impeller blocked or braked
• Switch off the unit, secure it against being
switched back on again and free the impeller
4. Faulty hose/piping
• Replace defective parts
5. Intermittent operation (cycling)
• Check switching system
9.1.4 Fault: The unit runs, but does not comply to the
1. Inlet blocked
• Clean the supply line, slide valve, suction piece,
suction port or suction strainer
2. Slide valve closed in the pressure pipe
• Open the slide valve if necessary and constantly
monitor the current consumption
3. Impeller blocked or braked
• Switch off the unit, secure it against being
switched back on again and free the impeller
• Incorrect direction of rotation
•
4. Air in the system
•Check the piping, pressure shroud and/or hydrau-
lics, and vent if necessary
5. Unit pumping against excessive pressure
• Check the slide valve in the pressure pipe and
open it completely if necessary, use a different
impeller, consult the plant
6. Signs of wear
• Replace worn parts
•
7. Faulty hose/piping
• Replace defective parts
8.
• Consult the plant
9. 2-phase operation
•Have a specialist inspect the connection and
correct it as necessary
10. Excessive decrease in the water table during
operation
• Check the supply and capacity of the system, and
inspect the level control settings and function
20 WILO SE 12-2017 DIN A4
English APPENDIX
9.1.5 Fault: The unit does not run smoothly and is
noisy
1. Unit is operating in an impermissible range
•Check the operational data of the unit and correct
if necessary and/or change the operating condi-
tions
2. Suction port, suction strainer and/or impeller
clogged
• Clean the suction port, suction strainer and/or
impeller
3. Impeller stiff
•Switch off the unit, secure it against being
switched back on again and free the impeller
4.
• Consult the plant
5. 2-phase operation
• Have a specialist inspect the connection and
correct it as necessary
6. Incorrect direction of rotation
•
7. Signs of wear
• Replace worn parts
8. Defective motor bearing
• Consult the plant
9. Unit is installed under tension
•Check installation, use expansion joints if
necessary
9.1.6 Further steps for troubleshooting
If the points listed here do not rectify the fault,
please contact customer service. Customer ser-
• Telephone or written support from customer
service
• On-site support from Wilo Customer Service
• Inspection or repair of the unit at the factory
Please note that you may be charged for some
services provided by our customer service! Cus-
tomer service can provide more precise informa-
tion on this.
10 Appendix
10.1 Spare parts
Spare parts can be ordered from the manufactur-
er’s customer service. To avoid return queries and
incorrect orders, the serial and/or article number
should always be supplied.
Subject to change without prior notice!
Table of contents
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