Wilo T 17 E3 Series User manual

Pioneering for You
·
Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa
SOLID
6067561 • Ed.04/2019-01
en Installation and operating instructions

en
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID 3
Table of contents
1 General information ................................................................................................................................................................. 5
1.1 About these instructions ..................................................................................................................................................................................5
1.2 Copyright ............................................................................................................................................................................................................5
1.3 Subject to change..............................................................................................................................................................................................5
1.4 Warranty..............................................................................................................................................................................................................5
2 Safety......................................................................................................................................................................................... 5
2.1 Identification of safety instructions................................................................................................................................................................5
2.2 Personnel qualifications....................................................................................................................................................................................7
2.3 Electrical work ....................................................................................................................................................................................................7
2.4 Monitoring devices ............................................................................................................................................................................................7
2.5 Use in fluids hazardous to health ....................................................................................................................................................................8
2.6 Transport.............................................................................................................................................................................................................8
2.7 Installing/dismantling........................................................................................................................................................................................8
2.8 During operation ................................................................................................................................................................................................8
2.9 Maintenance tasks.............................................................................................................................................................................................9
2.10 Operating fluid ...................................................................................................................................................................................................9
2.11 Operator responsibilities...................................................................................................................................................................................9
3 Application/use....................................................................................................................................................................... 10
3.1 Intended use.................................................................................................................................................................................................... 10
3.2 Improper use.................................................................................................................................................................................................... 10
4 Product description................................................................................................................................................................ 10
4.1 Design............................................................................................................................................................................................................... 10
4.2 Monitoring devices ......................................................................................................................................................................................... 13
4.3 Operating modes............................................................................................................................................................................................. 14
4.4 Operation with frequency converter............................................................................................................................................................ 14
4.5 Operation in an explosive atmosphere ........................................................................................................................................................ 14
4.6 Rating plate...................................................................................................................................................................................................... 15
4.7 Type key........................................................................................................................................................................................................... 16
4.8 Scope of delivery............................................................................................................................................................................................. 17
4.9 Accessories ...................................................................................................................................................................................................... 17
5 Transportation and storage................................................................................................................................................... 17
5.1 Delivery............................................................................................................................................................................................................. 17
5.2 Transport.......................................................................................................................................................................................................... 18
5.3 Storage ............................................................................................................................................................................................................. 19
6 Installation and electrical connection .................................................................................................................................. 19
6.1 Personnel qualifications................................................................................................................................................................................. 19
6.2 Installation types............................................................................................................................................................................................. 19
6.3 Operator responsibilities................................................................................................................................................................................ 20
6.4 Installation ....................................................................................................................................................................................................... 20
6.5 Electrical connection...................................................................................................................................................................................... 29
7 Commissioning........................................................................................................................................................................ 34
7.1 Personnel qualifications................................................................................................................................................................................. 34
7.2 Operator responsibilities................................................................................................................................................................................ 34
7.3 Direction of rotation check (for three-phase current motors only)........................................................................................................ 34
7.4 Operation in an explosive atmosphere ........................................................................................................................................................ 35
7.5 Before switching on........................................................................................................................................................................................ 36
7.6 Switching on and off ...................................................................................................................................................................................... 36
7.7 During operation ............................................................................................................................................................................................. 37
8 Shut-down/dismantling......................................................................................................................................................... 38
8.1 Personnel qualifications................................................................................................................................................................................. 38
8.2 Operator responsibilities................................................................................................................................................................................ 38
8.3 Shut-down....................................................................................................................................................................................................... 38
8.4 Removal............................................................................................................................................................................................................ 38

en
4 WILO SE 2019-01
9 Maintenance and repair.......................................................................................................................................................... 40
9.1 Personnel qualifications................................................................................................................................................................................. 41
9.2 Operator responsibilities................................................................................................................................................................................ 41
9.3 Labelling of the screw plugs.......................................................................................................................................................................... 41
9.4 Operating fluid ................................................................................................................................................................................................ 41
9.5 Maintenance intervals.................................................................................................................................................................................... 41
9.6 Maintenance measures .................................................................................................................................................................................. 42
9.7 Repairs .............................................................................................................................................................................................................. 51
10 Faults, causes and remedies .................................................................................................................................................. 53
11 Spare parts............................................................................................................................................................................... 56
12 Disposal.................................................................................................................................................................................... 57
12.1 Oils and lubricants........................................................................................................................................................................................... 57
12.2 Protective clothing .........................................................................................................................................................................................57
12.3 Information on the collection of used electrical and electronic products.............................................................................................. 57
13 Appendix.................................................................................................................................................................................. 57
13.1 Tightening torques ......................................................................................................................................................................................... 57
13.2 Operation with frequency converter............................................................................................................................................................ 58
13.3 Ex rating ........................................................................................................................................................................................................... 58

General information en
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID 5
1 General information
1.1 About these instructions These installation and operating instructions are an integral part of the product. Read
these instructions before commencing work and keep them in an accessible place at all
times. Strict adherence to these instructions is a precondition for the intended use and
correct operation of the product. All information and markings on the product must be
observed.
The language of the original operating instructions is German. All other languages of
these instructions are translations of the original operating instructions.
1.2 Copyright These installation and operating instructions have been copyrighted by the manufac-
turer. Contents of any kind may not be reproduced or distributed, or used for purposes
of competition and shared with others.
1.3 Subject to change The manufacturer reserves the right to make technical modifications to the device or
individual components. The illustrations used may differ from the original and are in-
tended as an example representation of the device.
1.4 Warranty The specifications in the current “General Terms and Conditions” apply to the warranty
and the warranty period. These can be found at www.wilo.com/legal
Any deviations must be contractually agreed and shall then be given priority.
Claim to warranty
If the following points are complied with, the manufacturer is obligated to rectify every
qualitative or constructive flaw:
ƒThe defects are reported in writing to the manufacturer within the warranty period.
ƒApplication according to intended use.
ƒAll monitoring devices are connected and tested before commissioning.
Exclusion from liability
Exclusion from liability excludes all liability for personal injury, material damage or fi-
nancial losses. This exclusion ensues as soon as one of the following applies:
ƒInadequate configuration due to inadequate or incorrect instructions by the operator
or the client
ƒNon-compliance with installation and operating instructions
ƒImproper use
ƒIncorrect storage or transport
ƒIncorrect installation or dismantling
ƒInsufficient maintenance
ƒUnauthorised repairs
ƒInadequate construction site
ƒChemical, electrical or electro-chemical influences
ƒWear
2 Safety This chapter contains basic information for the individual phases of the life cycle. Fail-
ure to observe this information carries the following risks:
ƒInjury to persons from electrical, mechanical and bacteriological factors as well as
electromagnetic fields
ƒEnvironmental damage from discharge of hazardous substances
ƒProperty damage
ƒFailure of important functions of the product
Failure to observe the information contained herein will result in the loss of claims for
damages.
The instructions and safety instructions in the other chapters must also be ob-
served!
2.1 Identification of safety instruc-
tions These installation and operating instructions set out safety instructions for preventing
personal injury and damage to property. These safety instructions are shown differ-
ently:
ƒSafety instructions relating to personal injury start with a signal word, are preceded
by a corresponding symbol and are shaded in grey.

en Safety
6 WILO SE 2019-01
DANGER
Type and source of the danger!
Consequences of the danger and instructions for avoidance.
ƒSafety instructions relating to property damage start with a signal word and are dis-
played without a symbol.
CAUTION
Type and source of the danger!
Consequences or information.
Signal words
ƒDANGER!
Failure to observe the safety instructions will result in serious injuries or death!
ƒWARNING!
Failure to follow the instructions can lead to (serious) injuries!
ƒCAUTION!
Failure to follow the instructions can lead to property damage and a possible total
loss.
ƒNOTICE!
Useful information on handling the product
Markups
‡Prerequisite
1. Work step/list
⇒ Notice/instructions
▶ Result
Symbols
These instructions use the following symbols:
Danger of electric voltage
Danger of bacterial infection
Danger of explosion
Danger – explosive atmosphere
General warning symbols
Warning of cutting injuries
Warning of hot surfaces
Warning of high pressure
Warning of suspended loads

Safety en
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID 7
Personal protective equipment: Wear a safety helmet
Personal protective equipment: Wear foot protection
Personal protective equipment: Wear hand protection
Personal protective equipment: Wear mouth protection
Personal protective equipment: Wear safety goggles
Autonomous work prohibited! A second person must be present.
Useful information
2.2 Personnel qualifications Personnel must:
ƒBe instructed about locally applicable regulations governing accident prevention.
ƒHave read and understood the installation and operating instructions.
Personnel must have the following qualifications.
ƒElectrical work: A qualified electrician must carry out the electrical work.
ƒInstallation/dismantling: The technician must be trained in the use of the necessary
tools and fixation materials for the relevant construction site.
ƒMaintenance tasks: The technician must be familiar with the use of operating fluids
and their disposal. In addition, the technician must have basic knowledge of mech-
anical engineering.
Definition of “qualified electrician”
A qualified electrician is a person with appropriate technical education, knowledge and
experience who can identify and prevent electrical hazards.
2.3 Electrical work ƒElectrical work must be carried out by a qualified electrician.
ƒBefore commencing work, disconnect the product from the mains and safeguard it
from being switched on again.
ƒObserve applicable local regulations when connecting to the mains power supply.
ƒAdhere to the requirements of the local energy supply company.
ƒTrain personnel in connecting electrics.
ƒInstruct personnel in options for switching off the device.
ƒComply with the technical specifications contained in these installation and operat-
ing instructions and on the rating plate.
ƒEarth the device.
ƒObserve regulations for connection to the electrical switching system.
ƒComply with the specifications on electro-magnetic compatibility when using elec-
tronic start-up controllers (e.g. soft starter or frequency converter). If required, take
into account special measures (e.g. shielded cables, filters etc.).
ƒReplace defective connection cables. Contact customer service.
2.4 Monitoring devices The following monitoring devices must be provided on-site:
Circuit breaker
The size and switching characteristics of the circuit breakers must conform to the rated
current of the connected product. Observe local regulations.

en Safety
8 WILO SE 2019-01
Motor protection switch
Make provision for an on-site motor protection switch for devices without a plug! The
minimum requirement is a thermal relay/motor protection switch with temperature
compensation, differential triggering and anti-reactivation device in accordance with
the local regulations. In case of sensitive mains, make provision for the installation on-
site of other protective equipment (e.g. overvoltage, undervoltage or phase failure re-
lay, etc.).
Residual-current device (RCD)
Comply with the regulations of the local energy supply company! The use of a residual-
current device is recommended.
If persons come into contact with the device and conductive fluids, secure the connec-
tion with a residual-current device (RCD).
2.5 Use in fluids hazardous to health There is a danger of bacterial infection when using the device in fluids hazardous to
health! Thoroughly clean and disinfect the device after dismantling and prior to further
use. The operator must ensure the following:
ƒThe following protective equipment is provided and worn when cleaning the device:
–Closed safety goggles
–Breathing mask
–Protective gloves
ƒAll persons are informed about the fluid, the associated danger and its correct hand-
ling!
2.6 Transport ƒThe following protective equipment must be worn:
–Safety shoes
–Safety helmet (when using lifting equipment)
ƒAlways hold the handle to transport the device. Never pull the power supply cable!
ƒOnly use legally specified and approved lifting gear.
ƒSelect the lifting gear based on the existing conditions (weather, attachment point,
load, etc.).
ƒAlways attach the lifting gear to the attachment points (handle or lifting eyelet).
ƒThe stability of the lifting equipment must be ensured during operation.
ƒWhen using lifting equipment, a second person must be present to coordinate the
procedure if required (e.g. if the operator’s field of vision is blocked).
ƒPersons are not permitted to stand beneath suspended loads. Do not carry suspen-
ded loads over workplaces where people are present.
2.7 Installing/dismantling ƒWear the following protective equipment:
–Safety shoes
–Safety gloves for protection against cuts
–Safety helmet (when using lifting equipment)
ƒLocally applicable laws and regulations for work safety and accident prevention must
be complied with.
ƒDisconnect the device from the mains and secure it against being switched on again
without authorisation.
ƒAll rotating parts must be at a standstill.
ƒProvide adequate aeration in closed rooms.
ƒWhen working in chambers and closed spaces, a second person must be present for
safety reasons.
ƒTake immediate countermeasures if there is a build-up of toxic or suffocating gases!
ƒClean the device thoroughly. Disinfect devices that are used in fluids hazardous to
health!
ƒMake sure that there is no risk of explosion when carrying out any type of welding
work or work with electrical devices.
2.8 During operation ƒWear the following protective equipment:
–Safety shoes
–Ear protection (in accordance with the notice of the work regulations)
ƒWork area of the device is not a recreational area. No persons are allowed in the work
area during operation.
ƒThe operator must immediately report any faults or irregularities to their line man-
ager.
ƒIf safety-endangering defects occur, the operator must immediately deactivate the
device:

Safety en
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID 9
–Malfunction of the safety and monitoring device
–Damage to the housing parts
–Damage to the electrical equipment
ƒNever reach into the suction port. The rotating parts can crush and sever limbs.
ƒIf the motor emerges during operation, the motor housing can heat up to above
40°C (104°F).
ƒOpen all gate valves in the piping on the suction and pressure side.
ƒEnsure minimum water submersion through dry-running protection.
ƒUnder normal operating conditions, the sound pressure level of the device is below
85dB(A). However, the actual sound-pressure level depends on several factors:
–Installation depth
–Installation
–Fixation of accessories and pipe
–Duty point
–Immersion depth
ƒIf the device is operated under normal operating conditions, the operator must
measure the sound pressure. Ear protection must be worn for sound pressure levels
of 85dB(A) and above and this must be noted in the work regulations!
2.9 Maintenance tasks ƒWear the following protective equipment:
–Closed safety goggles
–Safety shoes
–Safety gloves for protection against cuts
ƒAlways carry out maintenance tasks outside the operating space/installation site.
ƒOnly carry out maintenance tasks mentioned in these installation and operating in-
structions.
ƒOnly original parts from the manufacturer may be used for maintenance and repairs.
Use of parts other than the original parts releases the manufacturer from any liabil-
ity.
ƒCollect any leakage of fluid and operating fluid immediately and dispose of it ac-
cording to the locally applicable guidelines.
ƒStore tools at the designated locations.
ƒAfter completing work, reattach all safety and monitoring devices and check that
they function properly.
Changing operating fluid
In case of a defect, a pressure of several bar can build up in the motor! This pressure
escapes when the screw plugs are opened. If screw plugs are opened without due cau-
tion, they can be ejected at high speed! To avoid injuries, observe the following instruc-
tions:
ƒAdhere to the prescribed sequence of work steps.
ƒUnscrew the screw plugs slowly, but never unscrew them completely. As soon as the
pressure escapes (audible whistling or hissing of air), stop turning the screw plug any
further.
WARNING!Hot operating fluids can also spray out when the pressure is escaping.
This can result in scalding! To avoid injuries, allow the motor to cool down to the
ambient temperature before carrying out any work!
ƒWhen the pressure has completely dissipated, fully unscrew the screw plug.
2.10 Operating fluid In the sealing chamber, the motor is filled with white oil. Operating fluid must be re-
placed during regular maintenance work and disposed off according to the local
guidelines.
2.11 Operator responsibilities ƒInstallation and operating instructions must be in a language which the personnel
can understand.
ƒMake sure that the personnel is relevantly trained for the specified work.
ƒProvide the necessary protective equipment and make sure that the personnel wears
it.
ƒSafety and information signs mounted on the device must be always legible.
ƒTrain the personnel pertaining to the functioning of the system.
ƒEliminate risk from electrical current.
ƒEquip hazardous components inside the system with an on-site guard.
ƒIdentify and cordon off the work area.
ƒTo ensure safe working practice, define the responsibilities of the employees.

en Application/use
10 WILO SE 2019-01
Children and persons younger than 16years or with reduced physical, sensory or mental
capacities or limited experience are prohibited from handling the product! A technician
must supervise persons younger than 18years!
3 Application/use
3.1 Intended use Submersible pumps are suitable for pumping:
ƒSewage containing faeces
ƒWastewater (with small amounts of sand and gravel)
ƒProcess sewage
ƒFluids with dry matter up to max. 8%
3.2 Improper use
DANGER
Explosion due to pumping of explosive fluids!
Pumping of highly flammable and explosive fluids (gasoline, kerosene, etc.) in pure
form is strictly prohibited. There is a risk of fatal injury due to explosion! The pumps
are not designed for these fluids.
DANGER
Danger due to fluids hazardous to health!
If the pump is used in fluids hazardous to health, decontaminate the pump after dis-
mantling and before carrying out any other work! There is a risk of fatal injury! Ob-
serve the specifications in the work regulations! The operator must make sure that
the personnel have received and read the work regulations!
The submersible pumps must not be used for pumping:
ƒDrinking water
ƒFluids containing hard components (such as stones, wood, metal, etc.)
ƒFluids containing large quantities of abrasive contents (e.g. sand, gavel)
Intended use also includes compliance with this manual. Any other use is regarded as
non-compliant with the intended use.
4 Product description
4.1 Design Submersible sewage pump as submersible monobloc unit for continuous duty in wet
well and dry well installation.
P-Typ M-Typ
S/N MFY
U Q IMø
I H OTS/E
IST Cos TPFmax
PSF
F ISF IP
NMC
P-Typ M-Typ
S/N MFY
U Q IMø
I H OTS/E
IST Cos TPFmax
PSF
F ISF IP
NMC
T 12 ... T 17 T 20.1 T 20 ... T 42 T 49 ... T 72
1
1
2
2
2
2
3
3
3
4
5
5
5
5
6
6
66
7
77
7
Fig.1: Overview
1 Handle
2 Connection cable

Product description en
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID 11
3 Seal housing
4 Bearing housing
5 Pressure port
6 Hydraulics housing
7 Motor
4.1.1 Hydraulics Centrifugal hydraulics with different impeller shapes, horizontal flange connection on
the pressure side, inspection cover as well as casing and impeller wear rings.
The hydraulics are not self-priming, in other words, the fluid must flow in either auto-
matically or with supply pressure.
Impeller shapes
The individual impeller shapes depend on the size of the hydraulics and not every im-
peller shape is available for every hydraulic system. The following is an overview of the
different impeller shapes:
ƒVortex impeller
ƒSingle-channel impeller
ƒTwo-channel impeller
ƒThree-channel impeller
ƒFour-channel impeller
ƒSOLID impeller, closed or half open
Inspection cover (depending on the hydraulics)
Additional opening on the hydraulics housing. This opening is used to remove clogging
in the hydraulics.
Casing and impeller wear rings (depending on the hydraulics)
The suction port and impeller are subjected to the most stress when pumping. In the
case of channel impellers, the gap between the impeller and the suction port is an im-
portant factor for a constant efficiency. The larger the gap between the impeller and
the suction port, the higher the losses in the delivery rate. The efficiency decreases and
the danger of clogging increases. In order to ensure long and efficient operation of the
hydraulics, an impeller wear ring and/or casing wear ring is installed depending on the
impeller and the hydraulics.
ƒImpeller wear ring
The impeller wear ring is attached to the channel impellers and protects the incom-
ing flow edge of the impeller.
ƒCasing wear ring
The casing wear ring is installed in the suction port of the hydraulics and protects
the incoming flow edge in the centrifugal chamber.
The two components can be replaced easily when worn.
4.1.2 Motor The system is driven by surface-cooled motors in three-phase current version. The mo-
tor is cooled by the fluid around it. The waste heat is transferred directly to the fluid or
the ambient air via the motor housing. The motor may emerge during operation. Opera-
tion is possible in dry well installation depending on the motor power.
The motors are provided with different fittings depending on the motor size:
ƒRoller bearing: permanently lubricated and maintenance-free or regular re-greasing
ƒCondensate (condensation water) in motor: can be drained off
Overview of motor fittings
T12 ... T 20 T 20.1 T 24 ... T42 T49, T56 T 50, T 50.1, T 57.1, T 63.1 T 63.2, T 72
Leakage chamber for condensate (condensa-
tion water)*
− − • • • •
Roller bearing: permanently lubricated • • • • − −

en Product description
12 WILO SE 2019-01
T12 ... T 20 T 20.1 T 24 ... T42 T49, T56 T 50, T 50.1, T 57.1, T 63.1 T 63.2, T 72
Roller bearing: regular re-greasing − − − − • •
• = standard-equipped , − = not available
* NOTICE!In the case of Ex-rated motors, the condensation water cannot be drained
off from all motors. Depending on the motor, the drainage screw would be placed in
a spark-proof area!
The connection cable is longitudinally watertight and has bare cable ends.
4.1.3 Seal Different methods are used for the seal to the fluid and the motor compartment:
ƒVersion “H”: rotary shaft seal on the motor side, mechanical seal on the fluid side
ƒVersion “G”: two separate mechanical seals
ƒVersion “K”: two mechanical seals in a block seal cartridge made of stainless steel
Leakage from the seal is caught in the sealing chamber or leakage chamber:
ƒThe sealing chamber accommodates any possible leakage of the seal on the fluid
side.
ƒThe leakage chamber accommodates any possible leakage of the seal on the motor
side.
In the case of motors without an additional leakage chamber, the leakage from the
seal on the motor side is taken up in the motor.
Overview of gasket and leakage chamber
T12 ... T 20 T 20.1 T 24 ... T42 T49, T56 T 50, T 50.1, T 57.1, T 63.1 T 63.2, T 72
Sealing chamber ••••••
Leakage chamber − • − − • •
• = standard-equipped , − = not available
The sealing chamber between the mechanical seals is filled with medical white oil. The
leakage chamber is empty.
4.1.4 Material The following materials are used in the standard version:
ƒPump housing: EN-GJL-250 (ASTMA48 Class35/40B)
ƒImpeller: EN-GJL-250 (ASTMA48 Class35/40B)
ƒMotor housing: EN-GJL-250 (ASTMA48 Class35/40B)
ƒSeal on the motor side:
–“H” = NBR (nitrile)
–“G” = carbon/ceramic or SiC/SiC
–“K” = SiC/SiC
ƒSeal on the fluid side: SiC/SiC
ƒSeal, static: NBR (nitrile)
The precise details of the materials are shown in the respective configuration.

Product description en
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID 13
4.2 Monitoring devices
Overview of monitoring devices
T12 ... T17 T 20 T 20.1 T 24 ... T42 T49, T56 T 50, T 50.1, T 57.1, T 63.1 T 63.2, T 72
Internal monitoring devices
Motor compartment • • −−−−−
Terminal room/motor compartment −−•••••
Motor winding •••••••
Motor bearings −oooooo
Sealing chamber • −−−−• •
Leakage chamber − − • − − • •
Vibration sensor − − − o o o o
External monitoring devices
Sealing chamber ooooooo
• = standard-equipped , − = not available, o = optional
All the monitoring devices fitted must always be connected!
Monitoring of motor compartment
The motor compartment monitoring protects the motor winding from short-circuits.
The moisture is measured by an electrode.
Monitoring the terminal room and motor compartment
The terminal room and motor compartment monitoring protects the motor terminals
and winding from short-circuits. An electrode in both the terminal room and the motor
compartment measures the moisture content.
Monitoring of motor winding
The thermal motor monitoring protects the motor winding from overheating. Temper-
ature limiting with bimetallic strip is fitted as standard.
As an option, the temperature can also be measured with a PTC sensor. The thermal
motor monitoring can also be designed as temperature control. This allows the meas-
urement of two temperatures. When the low temperature is reached, an automatic re-
activation can be initiated after cooling the motor. When the high temperature is
reached, the unit must deactivate with reactivation lock.
Internal monitoring of sealing chamber
This sealing chamber is equipped with an internal pencil electrode. The electrode re-
gisters fluid ingress through the mechanical seal on the fluid side. An alarm or deactiva-
tion of the pump can therefore take place by pump control.
External monitoring of the sealing chamber
The sealing chamber can be equipped with an external pencil electrode. The electrode
registers fluid ingress through the mechanical seal on the fluid side. An alarm or deac-
tivation of the pump can therefore take place by pump control.
Leakage chamber monitoring
The leakage chamber is equipped with a float switch. The float switch registers fluid in-
gress through the mechanical seal on the motor side. An alarm or deactivation of the
pump can therefore take place by pump control.
Monitoring of motor bearing
The thermal monitoring of the motor bearing protects the roller bearings against over-
heating. Pt100 sensors are used for temperature measurement.

en Product description
14 WILO SE 2019-01
Monitoring of vibration occurring due to operation
The pump can be equipped with a vibration sensor. The vibration sensor registers the
vibration that occurs during operation. An alarm or deactivation of the pump must be
effected via the pump control depending on the differing limit values.
NOTICE!The limit values are set on-site during commissioning and recorded in the
commissioning log!
4.3 Operating modes
Operating mode S1: Continuous duty
The pump can operate continuously at the rated load without exceeding the permiss-
ible temperature.
Operating mode: Non-immersed operation
The “non-immersed operation” operating mode describes the possibility of the motor
emerging during the drainage pumping sequence. This allows a further lowering of the
water level as far as the upper edge of the hydraulics.
T12 ... T17 T 20 T 20.1 T 24 ... T42 T49, T56 T 50, T 50.1 T 57.1, T 63.1 T 63.2, T 72
Non-immersed operation allowed Yes No Yes Yes No Yes No
Observe the following points during non-immersed operation:
ƒOperating mode “non-immersed” indicated
The motor emerging in “non-immersed” operating mode is permissible.
ƒOperating mode: “non-immersed” not indicated
If the motor is fitted with a temperature controller (2-circuit temperature monitor-
ing), emergence of the motor is permitted. Automatic reactivation can be initiated
after the motor has cooled down using the low temperature. The unit is forced to
deactivate with reactivation lock once the high-temperature has been reached.
CAUTION!To protect the motor winding from overheating, the motor must be
equipped with a temperature controller! If only one temperature limiter is in-
stalled, the motor must not emerge during operation.
ƒMax. fluid and ambient temperature: The maximum ambient temperature corres-
ponds to the maximum fluid temperature shown on the rating plate.
CAUTION!The following applies to motor T12: During non-immersed operation,
the fluid temperature and ambient temperature must not exceed 30°C!
4.4 Operation with frequency con-
verter Operation on the frequency converter is permitted. Refer to the appendix for the relev-
ant requirements!
4.5 Operation in an explosive atmo-
sphere
Overview of standard motors
T12 T13 T17 T17.2 T 20 T 20.1 T24 T30 T34 T42 T49 T 50 T 50.1 T56 T 63.1/T 63.2 T 72
ATEX approval oooooooooo−−ooo−
FM approval ooooooooooo−ooo−
CSA-Ex approval o o o o o − o o o − − − − − − −
Key
− = not available/possible, o = optional, • = as standard

Product description en
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID 15
Overview of IE3 motors (derived from IEC 60034)
T17 ...-E3 T17.2 ...-E3 T 20.1 ...-E3 T24 ...-E3 T30 ...-E3 T34 ...-E3 T42 ...-E3 T 50.1 ...-E3 T 57.1 ...-E3 T 63.1 ...-E3 T 63.2 ...-E3
ATEX approval ooooooooooo
FM approval −−−−−−−−−−−
CSA-Ex approval −−−−−−−−−−−
Key
− = not available/possible, o = optional, • = as standard
For use in explosive atmospheres, the pump must be marked as follows on the rating
plate:
ƒ“Ex” symbol of the corresponding approval
ƒEx classification
For the relevant requirements, refer to the explosion protection chapter in the ap-
pendix of these installation and operating instructions!
ATEX approval
The pumps are suitable for operation in potentially explosive atmospheres:
ƒDevice group: II
ƒCategory: 2, zone 1 and zone 2
These pumps must not be used in zone 0!
FM approval
The pumps are suitable for operation in potentially explosive atmospheres:
ƒProtection class: Explosionproof
ƒCategory: Class I, Division 1
Notice: If the cabling is carried out according to Division 1, installation in Class I, Di-
vision 2 is also permitted.
CSA-Ex-rating according to division (Motor T12, T13, T17, T17.2, T20, T34)
The pumps are suitable for operation in potentially explosive atmospheres:
ƒProtection class: Explosion-proof
ƒCategory: Class 1Division 1
CSA-Ex-rating according to zone (Motor T24, T30)
The pumps are suitable for operation in potentially explosive atmospheres:
ƒDevice group: II
ƒCategory: 2, zone 1 and zone 2
These pumps must not be used in zone 0!
4.6 Rating plate The following is an overview of the abbreviations and associated data on the rating
plate:
Rating plate
designation
Value
P-Typ Pump type
M-Typ Motor type
S/N Serial number
Art.-No. Article number
MFY Date of manufacture*
QNVolume flow duty point
Qmax Max. volume flow
HNDelivery head duty point

en Product description
16 WILO SE 2019-01
Rating plate
designation
Value
Hmax Max. delivery head
Hmin Min. delivery head
nSpeed
TMax. fluid temperature
IP Protection class
IRated current
IST Starting current
ISF Rated current at service factor
P1Power consumption
P2Rated power
URated voltage
fFrequency
Cos φ Motor efficiency
SF Service factor
OTSOperating mode: immersed
OTEOperating mode: non-immersed
AT Starting mode
IMorg Impeller diameter: original
IMkorr Impeller diameter: corrected
*The date of manufacture is stated in accordance with ISO8601: JJJJWww
ƒJJJJ = year
ƒW = abbreviation for week
ƒww = calendar week
4.7 Type key Examples:
Wilo-EMU FA 15.52-245E + T 17.2-4/24HEx-E3
Wilo-Rexa SUPRA-V10-736A + T 17.2-4/24HEx-E3
Wilo-Rexa SOLID-Q10-345A + T 17.2-4/24HEx-E3
Hydraulics type key “EMU FA”
FA Sewage pump
15 x10 = nominal diameter of pressure connection
52 Internal performance coefficient
245 Original impeller diameter
(only for standard variants, omitted for configured pumps)
D
Impeller shape:
W = vortex impeller
E = single-channel impeller
Z = two-channel impeller
D = three-channel impeller
V = four-channel impeller
T = closed two-channel impeller
G = half-open single-channel impeller
Hydraulics type key “Rexa SUPRA”
SUPRA Sewage pump
V
Impeller shape:
V = vortex impeller
C = single-channel impeller
M = multi-channel impeller
10 x10 = nominal diameter of pressure connection
73 Internal performance coefficient
6Characteristic curve number

Transportation and storage en
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID 17
Examples:
Wilo-EMU FA 15.52-245E + T 17.2-4/24HEx-E3
Wilo-Rexa SUPRA-V10-736A + T 17.2-4/24HEx-E3
Wilo-Rexa SOLID-Q10-345A + T 17.2-4/24HEx-E3
A
Material version:
A = standard version
B = corrosion protection 1
D = abrasion protection 1
X = special configuration
Hydraulics type key “Rexa SOLID”
SOLID Sewage pump with SOLID impeller
Q
Impeller shape:
T = closed two-channel impeller
G = semi-open single-channel impeller
Q = half-open two-channel impeller
10 x10 = nominal diameter of pressure connection
34 Internal performance coefficient
5Characteristic curve number
A
Material version:
A = standard version
B = corrosion protection 1
D = abrasion protection 1
X = special configuration
Motor type key
TSurface-cooled motor
17 Size
2Configuration version
4Number of poles
24 Package length in cm
HSeal version
Ex Ex-rated
E3 IE-efficiency class (derived from IEC60034-30)
4.8 Scope of delivery
Standard pump
ƒPump with bare cable end
ƒInstallation and operating instructions
Configured pumps
ƒPump with bare cable end
ƒCable length as per customer request
ƒMounted accessories, e.g. external pencil electrode, pump support foot, etc.
ƒInstallation and operating instructions
4.9 Accessories ƒSuspension unit
ƒPump support foot
ƒSpecial versions with Ceram coatings or special materials
ƒExternal pencil electrode for sealing chamber control
ƒLevel control devices
ƒFixation accessories and chains
ƒSwitchgear, relays and plugs
5 Transportation and storage
5.1 Delivery After receiving the shipment, this must be checked immediately for defects (damage,
completeness). Defects must be noted on the freight documentation! Furthermore, de-
fects must be notified to the transport company or the manufacturer immediately on
the day of receipt of shipment. Subsequently notified defects can no longer be asser-
ted.

en Transportation and storage
18 WILO SE 2019-01
5.2 Transport
WARNING
Standing under suspended loads!
Never allow anyone to stand under suspended loads! Danger of (serious) injuries
caused by falling parts. Loads may not be carried over work places where people are
present!
WARNING
Head and foot injuries due to a lack of protective equipment!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety shoes
• Safety helmet must be worn if lifting equipment are used!
NOTICE
Use only properly functioning lifting equipment!
Use only properly functioning lifting equipment to lift and lower the pump. Ensure
that the pump does not become jammed during lifting and lowering. Do not exceed
the maximum bearing capacity of the lifting equipment! Check that lifting equip-
ment is functioning properly before use!
Only remove the outer packaging at the place of utilisation to ensure that the pump is
not damaged during transport. Use tear-proof plastic sacks of sufficient size to pack-
age used pumps for transport in a leak-proof manner.
The following points must also be observed:
P-Typ M-Typ
S/N MFY
U Q IMø
I H OTS/E
IST Cos TPFmax
PSF
F ISF IP
NMC
P-Typ M-Typ
S/N MFY
U Q IMø
I H OTS/E
IST Cos TPFmax
PSF
F ISF IP
NMC
T 12 ... T 17 T 20.1 T 20 ... T 42 T 49, T 56, T 72 T 50.1, T 57, T 63.x
min. 2500 mm
min. 98 in
Fig.2: Attachment points
ƒAdhere to the applicable national safety regulations.
ƒUse legally specified and approved lifting gear.
ƒSelect the lifting gear based on the existing conditions (weather, attachment point,
load, etc.).
ƒOnly attach the lifting gear to the attachment point. Fix with a shackle.
ƒUse lifting equipment with sufficient bearing capacity.
ƒThe stability of the lifting equipment must be ensured during operation.
ƒWhen using lifting equipment, a second person must be present to coordinate the
procedure if required (e.g. if the operator’s field of vision is blocked).

Installation and electrical connection en
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID 19
5.3 Storage
DANGER
Danger due to fluids hazardous to health!
If the pump is used in fluids hazardous to health, decontaminate the pump after dis-
mantling and before carrying out any other work! There is a risk of fatal injury! Ob-
serve the specifications in the work regulations! The operator must make sure that
the personnel have received and read the work regulations!
WARNING
Sharp edges on the impeller and suction port!
Sharp edges can form on the impeller and suction port. There is danger of limbs be-
ing severed! Protective gloves must be worn to protect from cuts.
CAUTION
Total damage due to moisture ingress
Moisture ingress in the power supply cable damages the power supply cable and the
pump! Never immerse the end of the power supply cable in a fluid and firmly seal it
during storage.
Newly supplied pumps can be stored for one year. Contact customer service to store
the pump for more than one year.
The following must be observed for storage:
ƒPlace the pump upright (vertical) on a firm bearing surface and secure it against
slipping and falling over!
ƒThe max. storage temperature is -15°C to +60°C (5°F to 140°F) at a max. relative
humidity of 90%, non-condensing. Frost-proof storage at a temperature of 5°C to
25°C (41°F to 77°F) with relative humidity of 40% to 50% is recommended.
ƒDo not store the pump in rooms in which welding work is carried out. The resulting
gases or radiation can corrode the elastomer parts and coatings.
ƒSeal the suction and pressure connection tightly.
ƒProtect power supply cables against kinking and damage.
ƒProtect the pump from direct sunlight and heat. Extreme heat can cause damage to
the impellers and the coating!
ƒImpellers must be turned by 180° at regular intervals (3–6months). This prevents
locking of the bearings and renews the lubrication film of the mechanical seal.
WARNING!There is a risk of injury due to sharp edges on the impeller and suction
port!
ƒElastomer parts and the coating are subject to natural brittleness. Contact customer
service if the pump must be stored for more than 6months.
After storage, remove any dust and oil from the pump and check the coating for dam-
age. Repair damaged coatings before further use.
6 Installation and electrical con-
nection
6.1 Personnel qualifications ƒElectrical work: A qualified electrician must carry out the electrical work.
ƒInstallation/dismantling: The technician must be trained in the use of the necessary
tools and fixation materials for the relevant construction site.
6.2 Installation types ƒVertical stationary wet well installation
ƒVertical portable wet well installation
ƒVertical stationary dry well installation
The installation types are dependent on the motor type:
Motor type Stationary wet Portable wet Stationary dry
T12 ... T17 • • •
T 20.1 • • •

en Installation and electrical connection
20 WILO SE 2019-01
Motor type Stationary wet Portable wet Stationary dry
T 20 ... T24 • o o
T30 ... T34 • – o
T42 ... T 72 • – –
Key: – = not possible, o = possible on order by order basis, • = possible
The following installation types are not permitted:
ƒHorizontal installation
6.3 Operator responsibilities ƒObserve locally applicable accident prevention and safety regulations of trade asso-
ciations.
ƒObserve all regulations for working with heavy loads and under suspended loads.
ƒProvide protective equipment and ensure that the protective equipment is worn by
personnel.
ƒObserve local sewage technology regulations for the operation of sewage systems.
ƒAvoid pressure surges!
Pressure surges can occur in long pressure pipes with steep terrain. These pressure
surges can lead to the destruction of the pump!
ƒEnsure the cooling time of the motor depending on the operating conditions and the
size of the pump chamber.
ƒStructural components and foundations must be of sufficient stability in order to al-
low the device to be fixed securely and functionally. The operator is responsible for
the provision and suitability of the structural component/foundation!
ƒCheck that the available consulting documents (installation plans, design of the op-
erating space, inflow conditions) are complete and correct.
6.4 Installation
DANGER
Risk of fatal injury due to dangerous lone working practices!
Work in chambers and narrow rooms as well as work involving risk of falling are dan-
gerous work. Such work may not be carried out autonomously! A second person
must be present for safety reasons.
WARNING
Hand and foot injuries due to lack of protective equipment!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety gloves for protection against cuts
• Safety shoes
• Safety helmet must be worn if lifting equipment are used!
NOTICE
Use only properly functioning lifting equipment!
Use only properly functioning lifting equipment to lift and lower the pump. Ensure
that the pump does not become jammed during lifting and lowering. Do not exceed
the maximum bearing capacity of the lifting equipment! Check that lifting equip-
ment is functioning properly before use!
ƒPrepare operating space/installation location as follows:
–Clean, free of coarse solids
–Dry well
–Frost-free
–Decontaminated
ƒTake immediate countermeasures if there is a build-up of toxic or suffocating gases!
ƒAttach the lifting gear to the attachment point using a shackle. Only use lifting gear
which has been technically approved.