Wilo RexaLift FIT L Series Safety guide

2540085 ED.01-01/2014 WH
Pioneering for You
Wilo-RexaLift FIT L
de Einbau- und Betriebsanleitung
en Installation and operating instructions
fr Notice de montage et de mise en service
es Instrucciones de instalación y funcionamiento
it Istruzioni di montaggio, uso e manutenzione
pt Manual de Instalação e funcionamento
tr Montajvekullanmakılavuzu
hu Beépítési és üzemeltetési utasítás
pl Instrukcjamontażuiobsługi
cs Návodkmontážiaobsluze
ru Инструкцияпомонтажуиэксплуатации
ro Instrucţiunidemontajşiexploatare
uk Iнструкціязмонтажутаексплуатації

Fig. 2: RexaLift FIT L1
Fig. 2: RexaLift FIT L2
Fig. 2
Fig. 1: RexaLift FIT L1 Fig. 1: RexaLift FIT L2
7
1
3
6
5
6
8
4
2
7
1
3
5
6
8
4
4
2
3
2
1
1

Fig. 3
Fig. 4: RexaLift FIT L2
Fig. 4: RexaLift FIT L1
30585
185 1518515
250
180
305
85
185
15
250
180
152
253
30585
174 15
250
180
250
180
235 235
85 305
1515
15164
305
85
243
152
180
250
30585
15 164
250
180
1
3
5
4
2
40...60 mm

Fig. 7
Fig. 6Fig. 5
10...20 mm
1
1
1
1
1
3
2
3
3
4
4
4
5
5
1
2
3
4
1 2
1 2

Fig. 8
Fig. 9
1
3
2
min.
25 mm

InstallationandoperatinginstructionsWilo-RexaLiftFITL 29
English
1. Introduction 30
1.1. About this document 30
1.2. Personnelqualications 30
1.3. Copyright 30
1.4. Subject to changes proviso 30
1.5. Warranty 30
2. Safety 31
2.1. Instructions and safety instructions 31
2.2. General safety 31
2.3. Electrical work 32
2.4. Safety and monitoring devices 32
2.5. Behaviour during operation 32
2.6. Fluids 32
2.7. Sound-pressure level 32
2.8. Guidelines used 32
2.9. CE marking 32
3. Product description 32
3.1. Intendeduseandeldsofapplication 33
3.2. Set-up 33
3.3. Operatingprinciple 34
3.4. Operatingmodes 34
3.5. Technicaldata 34
3.6. Typekey 34
3.7. Scope of delivery 35
3.8. Accessories(optionallyavailable) 35
4. Transportandstorage 35
4.1. Delivery 35
4.2. Transport 35
4.3. Storage 35
4.4. Returndelivery 36
5. Installation 36
5.1. General 36
5.2. Installationmethods 36
5.3. Installation 36
5.4. Electrical connection 40
6. Commissioning 40
6.1. Checking the installation/system 41
6.2. Operation 41
6.3. Rotation control 41
6.4. Levelcontrol 41
6.5. Operation 41
6.6. Emergencyoperation 43
7. Decommissioning/disposal 43
7.1. Switching off the unit 43
7.2. Removal 43
7.3. Return delivery / storage 44
7.4. Disposal 44
8. Maintenance and repair 44
9. Troubleshootingandpossiblesolutions 44
9.1. Overviewofpossiblemalfunctions 44
9.2. Overviewofpossiblecausesandtheirremedies44
9.3. Furtherstepsfortroubleshooting 45
10. Appendix 45
10.1. Spare parts 45
10.2. Variant operating modes 45
10.3. TechnicaldataforRexaLiftFITL1 46
10.4. TechnicaldataforRexaLiftFITL2 47

30 WILOSE01/2014Ed.05DINA4
English INTRODUCTION
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.
Thismanualisdividedintoindividualsections,
which are listed in the table of contents. Each
section has a heading which clearly describes its
content.
A copy of the EC declaration of conformity is a
component of these operating instructions.
Ifatechnicalmodicationismadeonthedesigns
named there without our agreement, this decla-
ration loses its validity.
1.2. Personnel qualications
All personnel who work on or with the lifting unit
mustbequaliedforsuchwork;electricalwork,
forexample,mayonlybecarriedoutbyaqualied
electrician. All personnel must be of legal age.
Operatingandmaintenancepersonnelmustalso
observe national accident prevention regulations.
It must be ensured that personnel have read and
understood the instructions in this operating and
maintenancehandbook;ifnecessary,thismanual
must be ordered from the manufacturer in the
required language.
Thisliftingunitisnotintendedforusebypersons
(includingchildren)withreducedphysical,senso-
ryormentalcapabilities,orlackofexperienceand
knowledge, unless they have been given super-
vision or instruction concerning use of the lifting
unit by a person responsible for their safety.
Children should be supervised to ensure that they
do not play with the lifting unit.
1.3. Copyright
Thisoperatingandmaintenancemanualhasbeen
copyrightedbythemanufacturer.Theoperating
and maintenance manual is intended for use by
installation, operating and maintenance person-
nel. It contains regulations and drawings which
may not be reproduced or distributed, either
completely or in part, or used for any competitive
purposewithouttheexpressedconsentofthe
manufacturer. Illustrations may differ from the
originalandserveonlyasexampleillustrationsof
the lifting unit.
1.4. Subject to changes proviso
Themanufacturerreservestherighttomake
technicalmodicationstounitsorcomponents.
Thisoperationandmaintenancemanualrefersto
the lifting unit indicated on the title page.
1.5. Warranty
Thissectioncontainsthegeneralinformationon
the warranty. Contractual agreements have the
highest priority and are not superseded by the
information in this section.
Themanufacturerisobligedtocorrectanyde-
fects found in the lifting units it sells, provided
thattherequirementsbelowhavebeenfullled.
1.5.1. General
• The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liftingunitwasusedonlyasintended.
• All safety and monitoring devices have been con-
nected and checked by specialist personnel.
1.5.2. Warranty period
If no other provisions have been made, the war-
rantyperiodappliestotherst24monthsafter
commissioningortoamax.periodof30months
afterthedeliverydate.Otheragreementsmustbe
madeinwritingintheorderconrmation.These
remain valid at least until the agreed warranty
periodoftheliftingunithasexpired.
1.5.3. Spare parts, attachments and modications
Onlygenuinesparepartsfromthemanufacturer
may be used for repairs, replacements, attach-
mentsandmodications.Unauthorisedadd-ons
andmodicationsortheuseofnon-originalspare
parts can seriously damage the lifting unit and/or
seriously injure personnel.
1.5.4. Maintenance
Theprescribedmaintenanceandinspection
workshouldbecarriedoutregularly.Thiswork
mayonlybecarriedoutbyqualied,trainedand
authorised personnel.
1.5.5. Damage to the product
Damage and malfunctions that endanger safety
must be eliminated immediately by trained per-
sonnel.Theliftingunitmayonlybeoperatedifit
is in proper working order. During the agreed war-
ranty period, the lifting unit may only be repaired
by the manufacturer or an authorised service
centre.Themanufacturerreservestherighttoask
the end-user to return the damaged lifting unit to
the factory for inspection.
1.5.6. Disclaimer
No liability will be assumed for damage to the
lifting unit if any of the following items apply:
• Themanufacturerdeemsthatinformationpro-
videdbytheend-userorcustomerisinsufcient
or incorrect
• Failuretoobservethesafetyinstructions,the
regulations and requirements of German law or
the applicable local laws, or of this operation and
maintenance manual
• Improper use
• Incorrect storage and transport
• Improper assembly/dismantling
• Insufcientmaintenance
• Incorrect repairs
• Inadequate construction site or construction work

InstallationandoperatinginstructionsWilo-RexaLiftFITL 31
SAFETY English
• Chemical,electrochemicalandelectricalinu-
ences
• Wear
Thismeansthemanufacturer’sliabilityexcludes
all liability for personal injury, material damage or
nanciallosses.
2. Safety
Thissectionlistsallthegenerallyapplicable
safety instructions and technical information. In
addition,alltheothersectionscontainspecic
safety instructions and technical information. All
instructions and information must be observed
and followed during the various phases of the
liftingunitlifecycle(installation,operation,
maintenance,transport,etc.)!Theend-useris
responsible 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-
tinguished as follows:
• Instructions appear in bold and refer directly to
theprecedingtextorsection.
• Safety instructions are slightly indented and 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. Irrepa-
rable 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.
Example:
Danger symbol: General hazard
Dangersymbol,forexample,electricalcurrent
Prohibitionsymbol,forexample,Keepout!
Instructionsymbol,forexample,wearprotec-
tive clothing
Thesafetysymbolsusedconformtothegenerally
applicable directives and regulations, such as DIN
and ANSI.
• Safety instructions that only refer to materi-
al damage are printed in grey, without safety
symbols.
2.2. General safety
• Theliftingunitmustbeswitchedoffbeforeany
workisperformed(installation,dismantling,
maintenance,installation).Theliftingunitmust
be disconnected from the electricity network and
secured against reactivation. All rotating parts
must have come to a standstill.
• Thepersonoperatingtheswitchgearmustnotify
his or her supervisor immediately should any
faults or irregularities occur.
• Theend-usermustshutdowntheequipmentim-
mediately if defects occur that represent a safety
risk.Theseinclude:
• Failureofthesafetyand/ormonitoringdevices
• Damage to the collection reservoir
• Damage to electrical devices, cables and insu-
lation.
• Do not work alone when installing and removing
the lifting unit in sewage shafts. A second person
mustalwaysbepresent.Furthermore,adequate
ventilation must be provided.
• Toolsandotherobjectsshouldbekeptintheir
designated places in order to ensure safe opera-
tion.
• During welding and/or work with electrical devic-
es,makesurethatthereisnoriskofexplosion.
• Onlyuseliftingdevicesthatareindicatedassuch
and approved for this use.
• Theliftingdevicesmustbeadaptedtothecor-
respondingconditions(weather,suspensionunit,
load,etc.)andbestoredcarefully.
• Mobile operating equipment for lifting loads must
be used so that the stability of the operating
equipment is guaranteed during use.
• During the use of mobile operating equipment for
lifting non-guided loads, take measures to pre-
vent them from tipping over, shifting, sliding, etc.
• Takemeasurestopreventanyonestandingunder
suspendedloads.Furthermore,itisprohibitedto
move suspended loads over working areas occu-
pied by people.
• If using mobile operating equipment for lifting
loads, get a second person to coordinate the pro-
cedureifnecessary(e.g.blockedvisibility).
• 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carriedout
outdoors, it must be cancelled if the weather
conditions worsen.
These instructions must be strictly observed.
Non-observance can result in injury or substan-
tial material damage.

32 WILOSE01/2014Ed.05DINA4
English PRODUCTDESCRIPTION
2.3. Electrical work
DANGER due to electrical voltage!
Improper procedures during electrical work
may result in fatal injuries caused by electric
shock! Such work may only be carried out by a
qualied electrician.
BEWARE of moisture!
Ingress of moisture into the cable will result
in damage to the cable and the lifting unit.
Never immerse the cable end in a liquid, and
make sure the cable end is protected against
the ingress of moisture. Strands that are not
used must be insulated!
Theliftingunitsareoperatedwiththree-phase
current.Thegoverningnationaldirectives,stand-
ardsandregulations(e.g.VDE0100)aswellasthe
requirements of the local energy supply company
must be observed.
Thepersonoperatingtheliftingunitmustknow
where it is supplied with power and how to cut off
the supply. A residual-current-operated pro-
tectionswitch(RCD)mustbeprovided.Inlifting
units with free cable ends, a motor protection
switch must be installed on site for three-phase
AC motors.
Thesectionentitled"Electricalconnection"must
beobservedwhenconnectingtheproduct.The
technicalspecicationsmustbeobservedstrictly.
Liftingunitsmustalwaysbegrounded.
If the lifting unit has been switched off by a
protective device, it must not be switched on
again until the fault has been corrected.
When connecting the lifting unit to the local
power supply, always comply with the national
regulations concerning electromagnetic compat-
ibility(EMC).
Connections may only be made if the connec-
tion meets the harmonised EU standards. Mo-
bile radio equipment may cause malfunctions in
the system.
BEWARE of electromagnetic radiation!
Electromagnetic radiation can pose a fatal
risk for people with cardiac stimulators. Put
up appropriate signs and make sure anyone
affected is aware of the danger!
2.4. Safety and monitoring devices
Themotorisequippedwithathermalwinding
monitor.Theliftingunitisswitchedoffifthis
gets too hot during operation.
Themonitoringequipmentisconnectedinthe
switchgear at the factory.
Personnel must be informed about the installed
systems and how they work.
CAUTION!
The lifting unit is not allowed to be operated
if the winding monitoring has been removed,
is damaged and/or does not function!
2.5. Behaviour during operation
When operating the lifting unit, always follow the
locally applicable laws and regulations for work
safety, accident prevention and handling elec-
tricalmachinery.Tohelptoensuresafeworking
practice, the responsibilities of employees should
be clearly set out by the end-user. All personnel
are responsible for ensuring that regulations are
observed.
2.6. Fluids
Theliftingunitchieycollectsandpumpswaste
water containing faeces. As a result, changing to a
differentuidisnotpossible.
Use with potable water is not permitted!
2.7. Sound-pressure level
Liftingunitsgenerateasound-pressurelevelof
approx.70dB(A)duringoperation.
Thesound-pressurelevelmayalsobehigher
during operation depending on several factors
(suchasinstallation,attachmentofaccessories
andpiping,dutypoint,etc.).
Therefore,werecommendthethattheend-user
should take an additional measurement at the
workplace once the lifting 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
sound-pressure level is 85dB(A) or more! The
end-user must make sure that this is complied
with!
2.8. Guidelines used
Thisliftingunitissubjectto
• Various EC directives,
• Various harmonised standards,
• Various national standards.
See the EC Declaration of Conformity for precise
details of the guidelines and standards used.
Also, various national regulations are used as a
basis for operating, installation and dismantling
theliftingunit.TheseincludetheGermanacci-
dent prevention regulations, VDE regulations and
GermanEquipmentSafetyLaw.
2.9. CE marking
TheCEmarkingontheratingplate,andtherating
plate is attached to the collection reservoir.
3. Product description
Theliftingunithasbeenmanufacturedwithgreat
care and is subject to constant quality controls.

InstallationandoperatinginstructionsWilo-RexaLiftFITL 33
PRODUCTDESCRIPTION English
Trouble-freeoperationisguaranteedifitisin-
stalled and maintained correctly.
3.1. Intended use and elds of application
DANGER of explosion!
Gas can collect in the collection reservoir
during pumping of sewage containing faeces.
This can ignite and lead to an explosion as a
result of incorrect installation and operation.
• The collection reservoir must be undamaged
(no cracks, leaks, porous material)!
• The inlet and outlet as well as the vent must
be connected in accordance with the regula-
tions and be absolutely leak-tight!
DANGER due to explosive uids!
Pumping explosive uids (e.g. petrol, parafn,
etc.) is strictly prohibited. The lifting units are
not designed for these uids!
Theliftingunitisusedforbackowresistant
drainage of discharge points for buildings and
areasoflandbelowthebackowleveland,in
accordancewithEN12050-1,issuitable for
pumpingsewage(with/withoutfaeces)outofthe
domesticareainaccordancewithEN12056-1.
A grease trap must be provided if greasy sew-
age is pumped!
Theliftingunitmust not be used for pumping
• Debris, ash, garbage, glass, sand, plaster, cement,
lime,mortar,brousmaterials,textiles,paper
towels,wet-wipes(e.g.eececloths,moisttoilet
paperwipes),nappies,cardboard,coarsepaper,
synthetic resins, tar, kitchen waste, grease, oil
• Slaughterhouse waste, disposal of slaughtered
animalsandanimalwaste(liquidmanure,etc.)
• Toxic,aggressiveandcorrosivesubstances,such
as heavy metals, biocides, pesticides, acids, bases,
salts, swimming-pool water
• Cleaning agents, disinfectants, dishwashing or
laundrydetergentsinexcessamounts,andsuch
which have a high degree of foam formation
• Sewage from drainage objects which lie above the
backowlevelandcanbedrainedbymeansof
gravity(acc.toEN12056-1)
• Explosiveuids
• Potable water
Thesystemmustbeinstalledinaccordancewith
thegeneralrulesasdetailedinEN12056and
DIN1986-100.
Theintendeduseincludescomplyingwiththese
instructions. Any other use is considered to be
outside the intended use.
3.1.1. Application limits
DANGER due to overpressure
Exceeding the application limits can result in
excessive pressure in the collection reservoir
if the unit malfunctions. This can cause the
collection reservoir to burst! There is a health
risk due to contact with sewage polluted by
bacteria (faeces). Always comply with the
application limits and ensure that the inlet is
blocked if the unit malfunctions.
Thefollowingapplicationlimitsmustbeobserved
strictly:
• Max.intake/h:
• Single-pumpsystem:1050l
• Double-pumpsystem:3000l
The maximum inow must always be less than
the volume ow of the pump at the respective
duty point.
• Max.suctionhead:5m
• Max.admissiblepressureinthepressurepipe:
3bar
• Max.uidtemperature:40°C,60°Cformax.
3min
• Max.ambienttemperature:40°C
• Operatingmode:S310%,120s
The unit is not designed for permanent opera-
tion! The max. volume ow applies to intermit-
tent operation according to EN60034-1!
• Also comply with further information in the
"Technicaldata"section!
3.2. Set-up
TheWilo-RexaLiftFITLisasubmersible,fully
automatic sewage lifting unit that is ready for
connection in single-pump and double-pump
versions.
Fig. 1.: Description
1 Collection reservoir
2 Inspection opening
3Levelcontrol
4 Pump unit
5Freechoiceofinletsurfaceareas
6DN 50 connection for emergency drain
7DN50/70combinedconnectionforventingandaddi-
tional intake
8 Pressure connection with built-in non-return valve
3.2.1. Collection reservoir
Gas and water-tight collection reservoir made
from PE plastic with special container geometry
for reliable operation without any build-up of
deposits.
Theinletconnections(DN100andDN150)can
be selected as required on both sides and on the
rearendintheareamarked.Thepressurecon-

34 WILOSE01/2014Ed.05DINA4
English PRODUCTDESCRIPTION
nectionDN80isconguredverticallyabovethe
reservoir. A non-return valve with ventilation
devices integrated in the pressure connection.
Inaddition,theliftingunithastwofurtherDN50/
DN70combinedconnectionsonthetankrooffor
intake and venting and two DN 50 connections on
the front end and two on the rear end for emer-
gency draining.
Forsimplemaintenanceoftheunit,thecollection
reservoir is equipped with an inspection opening.
Furthermore,thereservoiralsohastwofastening
straps.Thisallowstheliftingunittobeanchored
in an anti-buoyant way to the ground with the
suppliedxationmaterial.Thefasteningstraps
also function as transport carrying handles.
3.2.2. Pump unit
Thettedpumpunitconsistsofthemotorwith
thetterimpellerandanadapterring.
Themotorisawatertight,encapsulatedglanded
motor with a stainless steel housing and three-
phasedesign.Thecoolingisdonebytheambient
air.Thewasteheatisgivenoffviathemotor
housing.Themotorisequippedwithathermal
windingmonitorwithbimetallicstrips.Thewind-
ing monitoring is displayed and reset via the
connected switchgear.
Theadapterringconnectsthecompleteunitwith
the collection reservoir.
3.2.3. Level control
Thelevelcontrolisttedinthecollection
reservoir.Rodoatswitchesareusedassignal
transmitters.Theswitchingpointsaresetand
specied.
3.2.4. Switchgear
Thesystemiscontrolledviathettedswitchgear.
Theswitchgearcanalsobeusedtoimplementa
collectivefaultsignal(SSM).Thecablefromthe
motor to the switchgear is 4 m long and the cable
from the switchgear to the plug is 1.5 m long.
See the enclosed installation and operating
instructionsforthepreciseswitchgearspecica-
tions.
3.2.5. Versions
Theliftingunitisavailableinthefollowingver-
sions:
• Single-pump system with switchgear and
CEE-plug, including phase inverter.
• Double-pump system with switchgear and
CEE-plug, including phase inverter.
3.3. Operating principle
Thesewagethatarrivesischannelledintothe
collection reservoir via the inlet pipes, where it
collects.
If the water level rises as far as the switch-on lev-
el then the pump is switched on by the integrated
level control and the collected sewage is pumped
into the connected pressure pipe.
Thepumpisswitchedoffwhentheswitch-off
level is reached and the set follow-up time has
elapsed.
When the high water level is reached, an acoustic
warning is output and there is a forced switch-on
of all pumps. As soon as the water drops below
the high water level, the pumps are switched off
once the follow-up time has elapsed, and the
warning message is acknowledged automatically.
3.3.1. Special features of double-pump systems
• An automatic pump alteration occurs after every
pump operation.
• If one pump malfunctions, the other pump is
automatically used as the base-load pump.
• In the event of large volumes of sewage, both
pumps can be switched on in parallel.
3.4. Operating modes
3.4.1. Operating mode S3 (intermittent operation)
Thisoperatingmodeinvolvesthemaximumratio
between operating time and downtime:
S310%/120s
operatingtime12s/downtime108s
3.4.2. Variant operating mode
Dependingonthevolumeow,theoperat-
ingmodecanvarybetweenS310%/120sand
S320%/120s.Formorepreciseinformation,see
thetableintheappendixoftheseinstructions.
3.5. Technical data
Forthetechnicaldatafortheindividuallifting
units,seethetableintheappendixofthese
instructions.
3.6. Type key
Example: Wilo-RexaLift FIT L2-10/EAD1-2-T0026-
540-P/MS
RexaLift Sewage lifting unit
FIT Standard version
LSize
21 = single-pump system
2 = Double-pump system
10 MaximumdeliveryheadinmatQ=0
E
Motor version
E = dry motor
R = reduced-power glanded motor
A"Motor"materialversion
A = standard type
DSeal version
D = 2 independent mechanical shaft seals
1IEefciencyclass,e.g.:1=IE1(basedon
IEC60034-30)
-notEx-rated
2Number of poles
T
Mains connection version
M = 1~
T=3~

InstallationandoperatinginstructionsWilo-RexaLiftFITL 35
TRANSPORTANDSTORAGE English
0026 /10 = rated power P2in kW
5
Frequency
5=50Hz
6=60Hz
40 Key for rated voltage
P/MS
Additional electrical equipment
O=withbarecableend
P = with plug
P/MS = with plug and switchgear
3.7. Scope of delivery
• Sewage lifting unit ready for connection with
switchgear,4mcableandplug
• 1xinletsealDN100forplasticpipe(Ø110mm)
• 1xkeyholesaw(Ø124mm)forinletDN100
• 1xcollarforinletconnectionDN50(forseparate
intake or for the suction line of the diaphragm
handpump)
• 1xcollarforventilationconnectionDN70
• 1xangeconnectorDN80/100withatgasket,
collar, pipe clamps, bolts and nuts for connecting
thedischargepipelineDN100
• 1setofxationmaterial(2mountingbrackets,
screws,wallplugs,washers)
• 6x(FITL1)or8x(FITL2)dammingprotective
strips for insulation of structure-borne noise
• Installation and operating instructions for the
lifting units
• Installation and operating instructions for the
switchgear
3.8. Accessories (optionally available)
• Onpressureside:
• FlangeconnectorsDN80,DN100,forconnec-
tion of the gate valve on the pressure side to
the pressure pipe
• GatevalveDN80madeofcastiron
• Onintakeside:
• DN150intakesetcomprisingkeyholesaw
(Ø175mm)andinletseal
• GatevalvesDN100andDN150madeofPVC
• InletsealDN100
• General:
• Diaphragm hand pump with R1½ connection
(withouthose)
• 3-way cock for switching over to the manual
suctioning from the pump sump/tank
• Alarm switchgear
• Rechargeablebattery(NiMH,9V,200mAh)
• Horn230V,50Hz
• Flashlight230V,50Hz
• Signallamp230V,50Hz
4. Transport and storage
DANGER due to poisonous substances!
Lifting units that pump uids that are harmful
to health must be decontaminated before any
other work is performed! Otherwise, there
is a risk of fatal injury! Wear the necessary
physical protection equipment!
4.1. Delivery
Ondelivery,checkimmediatelythattheship-
ment is complete and undamaged. If any parts
are damaged or missing, the transport company
orthemanufacturermustbenotiedontheday
of delivery. Claims made after this date cannot be
recognised. Damage to parts must be noted on
the delivery or freight documentation.
4.2. Transport
Onlytheappropriateandapprovedfasteningde-
vices, transportation and lifting gear may be used.
Itmusthaveasufcientbearingcapacityand
safe working load in order for the lifting unit to
be transported safely. When the chains are used,
they must be secured against slipping.
Thepersonnelmustbequaliedtocarryoutthis
work, and must comply with all nationally appli-
cable safety regulations during the work.
Theliftingunitsaresuppliedbythemanufacturer
orsupplierinsuitablepackaging.Thisnormally
precludes the possibility of damage occurring
duringtransportandstorage.Thepackaging
should be stored in a safe place for reuse if the
product is frequently used at different locations.
4.3. Storage
Newly delivered lifting units are prepared in such
a way that they can be stored for at least 1 year.
Fortemporarystorage,theliftingunitsmustbe
thoroughly rinsed with clean water before storage
in order to prevent encrustations and deposits
building up in the collection reservoir, on the level
control and the pump hydraulics.
DANGER due to poisonous substances!
Flushing through the lifting unit contami-
nates the ushing water with faeces. Risk of
fatal injury due to contact with uid that is
harmful to health! Always wear the necessary
physical protection equipment and channel
the ushing water into the sewer system at
suitable points!
Thefollowingshouldbetakenintoconsideration
for storage:
• Placetheliftingunitsecurelyonarmbearing
surface, and secure it to prevent tipping over and
sliding.Liftingunitsarestoredhorizontally.
• Liftingunitscanbestoredattemperaturesdown
to-15°Cifcompletelyemptied.Thestoreroom
must be dry. We recommend a frost-protected
room for storage with a temperature between
5°Cand25°C.
• Theliftingunitisnotallowedtobestoredin
rooms in which welding work is carried out, be-
cause the resulting gases or radiation can damage
the elastomer components.
• All connections must be sealed securely to pre-
vent contamination getting in.
• All power supply cables must be protected
against kinking, damage and moisture ingress.
Furthermore,mountedplugsandswitchgear
must also be protected against moisture ingress.

36 WILOSE01/2014Ed.05DINA4
English INSTALLATION
DANGER due to electrical voltage!
Defective electrical components (e.g. power
supply cables, switchgear, plugs) represent
a risk of fatal injury due to electric shock!
Defective components must immediately be
renewed by a qualied electrician.
BEWARE of moisture!
Ingress of moisture into the electrical compo-
nents (cables, plugs, switchgear) will result in
damage to these components and the lifting
unit. Never immerse the electrical compo-
nents in a liquid, and protect them against the
ingress of moisture.
• Theliftingunitmustbeprotectedfromdirect
sunlightandfrost.Thiscanleadtosignicant
damage to the collection reservoir or the electri-
cal components!
• Followinglengthystorage,themaintenancework
accordingtoEN12056-4mustbecarriedout
prior to commissioning.
If you comply with these rules, your lifting unit
can be stored over a lengthy period. However,
note that the elastomer components are subject
to natural embrittlement. If the product is to be
storedforlongerthan6months,werecommend
checking these parts and replacing them as nec-
essary. Consult the manufacturer for details.
4.4. Return delivery
Liftingunitsthataresentbacktothefactory
must be cleaned to remove impurities and, if they
havebeenusedwithuidsthatareharmfulto
health, they must also be decontaminated.
Forshipping,thepartsmustbepackedintear-
proofplasticbagsofsufcientsizeinsucha
manner that they are tightly sealed and leak-
proof.Furthermore,thepackagingmustprotect
the lifting unit from damage during transporta-
tion. If you have any questions, please contact
the manufacturer!
5. Installation
In order to prevent damage to the product or seri-
ous injury during installation, the following points
must be observed:
• Installation work – assembly and installation
of the lifting unit – may only be carried out by
qualiedpersons.Thesafetyinstructionsmustbe
followed at all times.
• Theliftingunitmustbeinspectedfortransport
damage before any installation work is carried
out.
5.1. General
Forplanningandoperationoftechnicalsewage
systems, observe the pertinent local regulations
anddirectivesforsewagetechnology(suchas
those of the German Association for Water,
WastewaterandWaste).
In particular, pressure surges which occur, e.g.
when closing the non-return valve, may be sever-
al times higher than the pump pressure, depend-
ingontheoperatingconditions.Thesepressure
surges can cause irreparable damage to the unit.
Therefore, pay attention to the pressure resist-
ance and the longitudinal force t connection
of the pipe.
Furthermore,theexistingpipingmustbechecked
toensureitiscorrectlyconnectedtotheunit.The
existingpipesystemmustbeself-supportingand
is not allowed to be supported by the lifting unit.
In particular, the following applicable regulations
must be complied with for installation of lifting
units:
• DIN1986-100
• EN12050-1andEN12056(gravitydrainage
stationswithinbuildings)
Comply with the locally applicable regulations
in your country accordingly (e.g. national build-
ing regulations)!
5.2. Installation methods
• Stationary dry well installation in buildings and
sumps
5.3. Installation
DANGER due to overpressure
Exceeding the application limits can result in
excessive pressure in the collection reser-
voir. This can cause the collection reservoir
to burst! There is a health risk due to contact
with sewage polluted by bacteria (faeces).
Ensure that the inlet is blocked if the unit
malfunctions.
The following application limits must be ob-
served strictly:
• Max. intake/h: 1050l (FIT L1) or 3000l (FIT L2)
• Max. suction head: 5m
• Max. admissible pressure in the pressure pipe:
3bar
DANGER due to explosive atmosphere!
An explosive atmosphere can form within the
collection reservoir. If the collection reservoir
is opened (e.g. maintenance, repair, defect),
this atmosphere could spread within the
operating space. There is a risk of fatal injury
due to explosion! The operator is responsible
for dening a corresponding explosion zone.
Observe the following:
• The lifting unit, mounted switchgear and plug
are not Ex-rated!
• Take appropriate countermeasures to avoid an
explosive atmosphere in the operating space!
Thefollowinginformationmustbeobserved
when installing the lifting unit:
• Theworkmustbecarriedoutbyspecialistper-
sonnel, and electrical work must be performed by
an electrician.

InstallationandoperatinginstructionsWilo-RexaLiftFITL 37
INSTALLATION English
• Theoperatingspacemustbeclean,dry,welllit
and free from frost, and furthermore equipped for
the particular lifting unit.
• Theoperatingspacemustbeeasilyaccessible.
Make sure that there are adequate access oppor-
tunities for the transport equipment including
lifting unit, and that any elevators required are
sufcientlylargeandhaveanadequatebearing
capacity.
• Adequate ventilation of the operating space must
be assured.
• Theliftingunitmustbeeasilyaccessibleforoper-
ationandmaintenance.Aspaceofatleast60cm
mustbeleftcleararoundtheunit(WxHxD).
• Theinstallationsurfacemustbesolid(suitablefor
accommodatingdowels),horizontalandat.
• Theplacementofanyexistingorstill-to-be
installedpiping(forinlet,pressureandventing)is
to be checked with regard to connection options
to the unit.
• A pump sump must be arranged within the op-
eratingspacefordrainingit.Thismusthavethe
minimumdimensionsof500x500x500mm.The
pump used must be selected according to the
delivery head of the lifting unit. In an emergen-
cy, it must be possible to drain the pump sump
manually.
• Thepowersupplycablesmustbedesignedto
allow safe operation and installation/dismantling
withoutdifcultyatalltimes.Nevercarryorpull
the lifting unit by the power supply cable. Check
whether the cable present is long enough for its
cross-section and its installation type.
• Themountedswitchgear/plugarenotover-
ow-proof.Ensuresuitableinstallation.
• Structural components and foundations must
besufcientlystabletoallowtheproducttobe
anchoredsecurelyandfunctionally.Theoperator
or the supplier is responsible for the provision of
the foundations and their suitability in terms of
dimensions, stability and strength.
• Checktheavailableplanningdocumentation(in-
stallation plans, design of operating space, inlet
conditions)iscompleteandcorrect.
• Please also observe the applicable national acci-
dent prevention regulations and trade association
safety provisions.
• Additionally comply with the following points if
the lifting unit is installed in a sump:
DANGER of falling!
The work involved in installing the lifting
unit and its accessories may require adopting
a position directly at the edge of the sump.
Lack of care and/or incorrect choice of cloth-
ing can result in falling. There is a risk of fatal
injury! Take all necessary safety precautions
to prevent this.
• Rough solid material must be removed.
• Thesumpmustbedecontaminatedifneces-
sary.
• Forsafetyreasons,makesureasecondperson
is present at all times.
• Takethenecessarycountermeasuresifthere
is a risk of poisonous or suffocating gases
collecting!
• Depending on the ambient conditions in opera-
tion, the unit planner must select the sump size
and motor cooling time accordingly.
• Note the diagonal dimension of the lifting unit.
• It is necessary to guarantee that lifting equip-
mentcanbeinstalledwithoutdifculty,since
this will be required for installing/dismantling
theliftingunit.Theliftingequipmentmust
be able to reach the place where the lifting
unitisusedandplacedwithoutdanger.The
locationmusthavearmbearingsurface.Two
transport straps must be used as load-bearing
equipment for transporting the lifting unit.
Thesemustbeattachedtothereservoir.Only
structurally approved lifting devices may be
used. Also comply with all regulations, rules
and laws on working with heavy and suspended
loads. Wear the necessary physical protection
equipment.
5.3.1. Basic advice on xing the lifting unit
Liftingunitsmustbeinstalledsotheyarepre-
vented from twisting and also in an anti-buoyant
fashion depending on the installation location.
Forthispurpose,theliftingunitmustbeanchored
totheooroftheoperatingspace.Thelifting
unit can be installed on various constructions
(concrete,plastic,etc.).Forthisreason,thexa-
tion materials provided by the customer must be
suitable for the relevant construction.
Observethefollowinginstructionsforthexation
material:
• Ensure the proper edge clearance in order to
prevent the construction material from tearing or
chipping.
• Thesizeoftheboreholedependsonthesizeof
thebolts.Theboreholeshouldbe5mmdeeper
than the bolt length.
• Drillingdustimpairsholdingstrength.Therefore
always blow or vacuum out the borehole.
• Makesurethexationmaterialisnotdamaged
during assembly.
5.3.2. Stationary dry well installation in buildings and
sumps
Work steps
Theliftingunitisinstalledinthefollowingsteps:
• Positioning the lifting unit and anchoring it to the
oor
• Connecting the pressure pipe
• Connect main inlet DN 100/DN 150
• Connect the bleed line
• Connect inlet DN 50
• Connect the emergency drain

38 WILOSE01/2014Ed.05DINA4
English INSTALLATION
Positioning the lifting unit and anchoring it to
the oor
Fig. 2.: Installing the lifting unit
1 Sound absorption strip 3 Mounting bracket
2Fasteningstraps
Theliftingunitissecuredtotheoorusingtwo
brackets.
1. Place the lifting unit in the required position and
align it.
2. Insert mounting brackets into both fastening
straps(oneachend)andmarkthedrillingholes.
3. Move the lifting unit to one side and drill the drill-
ingholesaccordingtothexationmaterialused.
4. Attach sound absorption strips to the underside
of the lifting unit.
5. Position the lifting unit again, insert the mount-
ing brackets and attach using the corresponding
xationmaterial.
Connecting the pressure pipe
BEWARE of pressure surges!
Pressure surges can exceed the maximum
permitted operating pressure many times
over. This can cause the pressure pipe to
burst! Attempt to avoid pressure surges by
the way that the pressure pipe is routed. The
piping and connection elements used must
have corresponding pressure resistance!
NOTE
• AccordingtoEN12056-4,theowvelocityat
thedutypointmustbebetween0.7m/sand
2.3m/s.
• Reducing the pipe diameter in the pressure pipe
is not permitted.
Thefollowinginformationmustbeobserved
when connecting the pressure pipe:
• Thepressurepipemustbeself-supporting.
• Thepressurepipemustbeconnectedsoitisfree
fromvibration,noise-insulatedandexible.
• Theconnectionaswellasallunionsmustbe
absolutely leak-tight.
• A max. tightening torque of 5Nm is permitted
when using pipe clamps.
• Thepressurepipemustberoutedwhereitis
protected from frost.
• Toavoidanybackowfromthemainpublicsew-
er,installthepressurepipeasaloop.Thebottom
edge of the pipe loop must be above the locally
denedbackowlevelatitshighestpoint.
• A gate valve must be installed directly after the
pressureconnection(anon-returnvalvewitha
ventilation device is integrated in the pressure
connection).Thepressurepipeisthenmounted
onthisusingangeconnectors.
Fig. 3.: Connecting the pressure pipe
1Liftingunit 4 Pressure pipe
2
Pressure connection
with built-in non-return
valve
5Flexibleconnecting
piece
3 Gate valve
1. Thepressurepipemustberoutedsothatthe
connection is perpendicular to the pressure
connection. Please refer to the installation plan in
the catalogue for the precise dimensions of the
lifting unit.
2. Install the gate valve on the pressure connection.
3. Thepressurepipemustbeinstalledexiblyon
the gate valve with noise insulation by means of
angeconnectors.Makesurethataminimum
distanceof40...60mmismaintainedbetween
thepressurepipeandconnectorendoftheange
connector.
Connect main inlet DN 100/DN 150
Theinletcanbeonbothsidesandtherearend,
according to choice.
In addition, there are markings on the reservoir for
direct connection
• ofastand-alonetoiletataheightof180mm
• andawall-mountedtoiletataheightof250mm.
Fig. 4.: Overview of inlets
1Freeinletsurfaces
Thefollowinginformationmustbeobserved
when connecting the inlet pipe:
• Theinletisonlyallowedtobewithinthemarked
areas.
If the inlet is outside the marked areas
• the unit could leak.
• there could be backow into the connected
inlet pipes.
• Theinletmustberoutedsoitisself-draining.
Furthermore,aninletsurgemustbeprevented,as
must any air intake.
An inlet surge and/or air intake can cause mal-
functions of the lifting unit!
• Themin.connectionheightis180mm.
An inlet at less than this height can lead to
backow in the inlet pipe!
• Theconnectionaswellasallunionsmustbeab-
solutelyleak-tight.Todothis,theinletmustbe
horizontal(±5°)tothecollectionreservoir.
• A gate valve must be installed in the inlet before
the reservoir!
• Pipe clamps are allowed to be tightened to a max.
tightening torque of 5Nm.

InstallationandoperatinginstructionsWilo-RexaLiftFITL 39
INSTALLATION English
Fig. 5.: Connecting the inlet
1 Reservoir wall 4 Inlet pipe
2 Keyhole saw 5 Pipe clamp
3 Inlet seal
1. Route the inlet to the reservoir and mark the inlet
connection on the reservoir.
2. Use the supplied keyhole saw to cut the hole for
the DN 100 inlet into the reservoir wall.
For a DN 150 inlet, the DN 150 intake set (avail-
able as an accessory) must be present.
Thefollowingpointsmustbeobservedwhen
doing this:
• Comply with the dimensions of the inlet surfaces
• Maximumrotationspeedofthedrill:200rpm
• Makesuretheexcessmaterialinthedrillbitis
removed completely:
• Iftheexcessmaterialremovalisreduced,the
materialwillheatupexcessivelyandmelt.
Interrupt the drilling process, allow the material
to cool and clean the keyhole saw!
• Reduce the speed of the drill.
• Vary the feed pressure when drilling.
• Checktheholediameter:DN100=124mm;
DN150=175mm
NOTE
Drilltheconnectionfortheinletcarefully.The
subsequent impermeability of the connection
depends on this!
3. Deburr and smooth the cut surface.
4. Insert the inlet seal into the hole
5. Moisten the inner surface of the inlet seal with
lubricant
6. Push the pipe clamp onto the inlet seal.
7. Pushtheinletpipeintotheinletseal.The
inlet pipe must be pushed into the reservoir by
10...20mm.
8. Connecttheinletsealandpipermlytothepipe
clamp. Max. tightening torque: 5Nm.
Connecting the bleed line
TherearetwoDN50/DN70combinedconnec-
tions on the tank roof for connecting the bleed
line.
Comply with the following points when connect-
ing the ventilation pipe:
• Connectionofaventilationpipeisaspecied
requirement and essential for correct function of
the lifting unit.
• Theventilationpipemustberouteduptohigher
than roof level.
• Theventilationpipemustbeself-supporting.
• Theventilationpipemustbeconnectedsoitis
free from vibration.
• Theconnectionaswellasallunionsmustbe
absolutely leak-tight.
• A max. tightening torque of 5Nm is permitted
when using pipe clamps.
Fig. 6.: Installing the DN70 bleed line
1DN 50/70 combined
connection 2 Saw
1. OpentheDN50/70combinedconnectionwitha
suitablesaw.Todothis,sawofftheDN70con-
necting piece above the lip.
2. Deburr and smooth the opening.
3. Slidethesuppliedcollar(DN70)ontothecon-
necting piece up to the inner collar and fasten
with the pipe clamp.
4. Attach the ventilation pipe to the collar.
Connect inlet DN 50
As a general rule, it is recommended for all inlets
to be routed to the lifting unit centrally within an
inletpipe.Asthisisnotalwayspossible,theRex-
aLiftFITLhasanextraDN50connectiononthe
tankroof(aDN50/DN70combinedconnection).
NotethefollowingpointswhenusingtheDN50
connection:
• Theinletisonlyallowedtousetheexistingcon-
necting pieces.
• Theinletmustberoutedsoitisself-draining.
Furthermore,aninletsurgemustbeprevented,as
must any air intake.
An inlet surge and/or air intake can cause mal-
functions of the lifting unit!
• Theconnectionaswellasallunionsmustbe
absolutely leak-tight.
• Pipe clamps are allowed to be tightened to a max.
tightening torque of 5Nm.
Fig. 7.: Installation of DN50 inlet
1DN 50/70 combined
connection 2 Saw
1. OpentheDN50/70combinedconnectionwitha
suitablesaw.Todothis,sawofftheDN50con-
necting piece above the lip.
2. Deburr and smooth the opening.
3. Pushthecollar(DN50)overtheconnectionpiece
and secure it with a pipe clamp. Max. tightening
torque: 5Nm
4. Push another pipe clamp over the collar, insert
the inlet into the collar and connect both parts
rmlywiththepipeclamp.Max. tightening
torque: 5Nm
5.3.3. Installation of the diaphragm hand pump for
manual draining of the collection reservoir
If the lifting unit fails, it can collect and hold the
sewageinowforaperiodoftimedependingon
theinlet.Toavoidmajordamageand/orbursting
of the collection reservoir or the inlets, the col-
lected sewage can be pumped manually into the
pressure pipe using a diaphragm hand pump.
Forthispurpose,thediaphragmhandpumpcan
be permanently connected to the lifting unit.

40 WILOSE01/2014Ed.05DINA4
English COMMISSIONING
NOTE
We recommend always having a permanent
installation of the diaphragm hand pump on
the lifting unit so that sewage disposal can be
guaranteed even during a malfunction.
Note the following:
• Thediaphragmhandpumpmustbeinstalledata
corresponding height for optimum operation.
• All connections must be absolutely leak-tight.
• Forsafeandreliablefunction,alsorefertothe
installation and operating instructions of the
diaphragm hand pump.
Fig. 8.: Permanent installation of the diaphragm hand pump
1 Diaphragm hand pump
2DN50connectionsonthefrontend
3 Pressure pipe
Theconnectiontotheliftingunitismadeatone
ofthetwoDN50inletsonthefrontorrearends.
Theconnectiontothepressurepipeisabovethe
gate valve.
NOTE
Thepressure-sideconnectionofthediaphragm
hand pump can also be made directly into the
collectingpipeviaitsownbackowloop!
5.4. Electrical connection
POTENTIALLY fatal danger due to electrical
voltage!
Incorrect electrical connections can cause fa-
tal electric shocks. Electrical connections may
only be carried out by a qualied electrician
approved by the local energy supply company,
in accordance with locally applicable regula-
tions.
• Themainsconnectioncurrentandvoltagemust
be as stated on the rating plate.
• Earth the lifting unit according to the regulations.
Thecrosssectionofthecablefortheprotective
ground conductor connection must correspond to
the local regulations.
• A residual-current-operated protection switch
(RCD)mustbeinstalledinaccordancewiththe
local regulations!
• Theelectricalconnectionsmustbeinstalledso
theyareoverow-proof!
• Thettedswitchgearandtheoptionalalarm
switchgear for the collective fault signal must be
attachedinanoverow-proofmanner.
• Thepowersupplyonthemainssidemusthavea
clockwiserotatingeld.
5.4.1. Mains side fuse protection
Theback-upfuserequiredmustberatedaccord-
ing to the starting current. Refer to the rating
plate for the starting current.
Onlyslow-blowfusesorK-typecircuitbreakers
areallowedtobeusedastheback-upfuse.The
max.fuseprotectiononthemainssideis:
• 16AforliftingunitswithaCEEM16plug
• 25AforliftingunitswithaCEEM32plug
5.4.2. Mains connection
TheliftingunitisequippedwithaCEEplug.
Toconnecttothemains,aCEEsocket(acc.to
VDE0623orcorrespondinglocalregulations)
must be provided by the customer.
Also observe the installation and operating
instructions for the tted switchgear.
5.4.3. Adjusting the motor protection
Theelectronicmotorprotectionintheswitchgear
monitorsthemotor'smaximumratedcurrent.
Thisisafactorysettinganditshouldbechecked
again.Todothis,checkthepositionsoftheindi-
vidual DIP switches.
Read the installation and operating instructions
for the tted switchgear.
5.4.4. Connecting an external alarm signal
Theswitchgearisttedwithabuzzerinthe
factory.Inaddition,anexternalalarmsignalcan
beconnectedviaapotential-freecontact(SSM)
intheswitchgear(e.g.alarmswitchgear,horn,
ashlight).
Theswitchinglevelforthealarmsignalisapprox.
200mm for the single-pump system and ap-
prox. 250mm for the double-pump system(via
theinstallationsurfaceupperedge)
NOTE
Note the switching level for the alarm signal if
youwanttoprotectdrainagexturesthatare
on a lower level!
See the installation and operating instructions for
the switchgear for precise information about the
switch contact and the individual work steps for
connecting it.
5.4.5. Operation with frequency converters
Operationonafrequencyconverterisnotpos-
sible.
6. Commissioning
The"Commissioning"sectioncontainsallthe
important instructions for operating personnel
on commissioning and operating the lifting unit
safely.
It is essential for the following general conditions
to be complied with and checked:
• Operatingmode
• Max.intake/h
• Max.suctionhead
These general conditions must also be checked
after a lengthy period without operation, and
any defects detected must be repaired!

InstallationandoperatinginstructionsWilo-RexaLiftFITL 41
COMMISSIONING English
Always keep this manual either by the lifting unit
or in a place specially reserved for it, where it is
accessible for all operating personnel at all times.
In order to prevent damage or serious injury when
commissioning the lifting unit, the following
points must always be observed:
• Electrical engineering and mechanical settings as
well as commissioning of the lifting unit are only
allowedtobecarriedoutbyqualiedandtrained
personnel in accordance with the safety instruc-
tions.
• All persons working on or with the lifting unit
must have been provided with this manual and
have read and understood it.
• All safety devices and emergency cut-outs must
be connected and inspected to ensure that they
are working properly.
• Theliftingunitissuitableforuseunderthespeci-
edoperatingconditions.
• Make sure a second person is present at all times
when you are working in the sump. If there is a
risk of poisonous gases building up, make sure
that adequate ventilation is provided.
6.1. Checking the installation/system
Commissioning may be carried out only if the
installation is complete, all relevant safety reg-
ulations(e.g.VDEregulationsinGermany)and
regional regulations are met, and all the points
have been checked.
BEWARE of material damage!
If the installation and the following checks are
not carried out properly, the lifting unit may
become seriously damaged during operation.
Check the installation and carry out the fol-
lowing inspections.
6.1.1. Checking the installation
Check the installation to ensure all the necessary
work was carried out properly:
• Ground-fastening
• Mechanical connections
• Inlet with check valve
• Discharge pipe with check valve
• Venting via roof
• Electrical connection:
• Clockwiserotatingeldpresent.
• Theliftingunitmustbeproperlyfusedand
grounded.
• Assembling the switchgear
• Assembling the CEE-socket
• Layingthepowersupplycables
• Assemblingtheexternalalarmsignal(optional)
• Assembling the diaphragm hand pump for emer-
gency draining
• System completely cleaned, especially of solid
matter.
6.1.2. Checking the system
Complete the following tasks before commis-
sioning:
Position of the venting screw on the built-in
non-return valve
Fig. 9.: Position of the venting screw
Theventingscrewmustbeunscrewedbyatleast
25mmtoensuresecuresystemoperation.Check
the position of the venting screw.
If the venting screw is screwed too far in, this
can lead to damage on the valve and unit, as
well as to high noise development.
Function test for level control
Thelevelcontroldevicemustbecheckedtoen-
sure it is in a fault-free mechanical state.
1. Openthemaintenancecover.
2. Checkthattheoatswitchcanmovefreelyand
hasarmtontherod.
3. Seal up the inspection opening again.
6.2. Operation
Theliftingunitisoperatedviathettedswitch-
gear.TheLEDsonthefrontandthebuttonson
thesideareusedtoexecuteandindicateswitch-
ing on/off, automatic mode and to display the
individual monitoring facilities.
Theswitchgearispresetforoperatingthesystem.
Theonlysettingthatneedstobemadeduringin-
itial commissioning is the pump's follow-up time.
See the installation and operating instructions
for the tted switchgear for all the necessary
information about operating the switchgear and
the individual displays.
6.3. Rotation control
Rotation is controlled via the switchgear.
See the installation and operating instructions
for the tted switchgear for all the necessary
information about the rotation control and any
troubleshooting.
6.4. Level control
Theswitchingpointsofthelevelcontrolhave
permanent settings and cannot be adjusted.
6.5. Operation
6.5.1. Operating conditions
Theliftingunitisonlyallowedtobeoperated
under the following conditions:
• Max.intake/h:
• RexaLiftFITL1:1050l
• RexaLiftFITL2:3000l
• Max.suctionhead:5m
• Max.admissiblepressureinthepressurepipe:
3bar
• Max.uidtemperature:40°C,60°Cformax.
3min
• Ambienttemperature:3...40°C
• Operatingmode:S310%,120s
• Fluidispresent.
Dry running can lead to damage to the motor,
and is strictly prohibited!

42 WILOSE01/2014Ed.05DINA4
English COMMISSIONING
6.5.2. Initial commissioning
Before the lifting unit can be taken into operation,
itmustbelledandatestruncarriedout.The
test run must include a complete pump cycle for
allthepumps.Thisallowstheunittobechecked
for leaks.
In addition, the pumps' follow-up time has to be
set in order to guarantee optimum operation of
the unit.
BEWARE of malfunctions!
When the plug is inserted, the switchgear
starts in the last operating mode that was set.
Before inserting the plug, read the installation
and operating instructions for the switchgear
and ensure that you are familiar with the
switchgear's operation and displays.
Test run for proper function and leakage test
1. Switch on the lifting unit: insert the plug into the
socket.
2. Check the switchgear's current operating mode.
Theswitchgearshouldbeinautomaticmode.
3. Openthecheckvalvesontheinletandpressure
sides.Thecollectionreservoirislledslowly.
4. Theunitisnowswitchedonandoffusingthe
level control.
5. In a test run, every pump must run through a
complete pumping procedure.
6. Close the gate valve in the inlet. In the normal
case, the lifting unit should now not switch on
againbecausenomoreuidowsin.
If the lifting units switch on despite this, the
non-return valve is leaky. In this case, check the
position of the venting screw.
7. Check all pipe joints and the collection reservoir
do not leak.
If all the components are leak-tight and the
non-return valve closes correctly, the unit can be
used in automatic mode.
Open the gate valve in the inlet again so that
uid can ow in.
Setting the follow-up time for the pumps
Set the pump run-time so that:
• Thelargestpossiblequantityofsewageis
pumped in each pumping procedure.
• Theloadsonthesystemanddischargepipeline
are as small as possible.
• Operationisassilentaspossible.
BEWARE of material damage!
Closing the non-return valve hard can result
in uid hammers that damage or destroy the
unit and/or discharge pipeline. Avoid uid
hammers by setting the pump run-time ap-
propriately or, if necessary, install an addi-
tional non-return valve with a counterweight.
Thepumprun-timeshouldbedeterminedas
follows:
• If a slurping noise can be heard before the pump
isswitchedoff(pumpingawater/airmixture)but
the non-return valve closes quietly or with only
aslightapknock,thepumprun-timeshouldbe
reduced so that the pump switches off shortly
before the slurping noise starts.
• If the non-return valve shuts with a loud knock
after the pump is switched off and the unit and
the pipe vibrate, the pump run-time must be
extendeduntiltheslurpingoperationstarts.
• Thefollowinginformationshouldbetakeninto
consideration when setting the pump run-time:
• Theslurpingoperationshouldnotexceed2s.
• Thepumprun-timeshouldnotexceed12s.
These values must not be exceeded because
otherwise the system will be operating outside
the permissible range.
Thefollow-uptimeforthepumpsissetbyad-
justing the potentiometer in the switchgear.
See the installation and operating instructions
for the tted switchgear.
POTENTIALLY fatal danger due to electrical
voltage!
There is a risk of fatal electric shocks oc-
curring when performing work on the open
switchgear. The follow-up time must be set
by a qualied electrician.
6.5.3. Automatic mode
Theliftingunitoperatesinautomaticmodeby
default and is switched on and off using the inte-
grated level control.
1. Switch on the lifting unit: insert the plug into the
socket.
2. Checktheswitchgear'soperatingmode.The
switchgear should be in automatic mode.
3. Theunitnowrunsinautomaticmode.
BEWARE of burns!
The motor housing can reach temperatures
well in excess of 40°C during operation. There
is a risk of burns! Never touch the motor
housing during operation, and even when at a
standstill.
6.5.4. Manual operation
Theliftingunitcanalsobeswitchedonmanu-
ally for a short test run or to drain the collection
reservoir manually in an emergency.
1. Press the manual mode button on the switchgear.
2. Releasethebuttonagaintoexitmanualopera-
tion.Theunitrunsinautomaticmodeagain.
BEWARE of overload!
The lifting unit is only approved for intermit-
tent operation (S3). Permanent operation can
overload the motor and damage it. Manual
operation is not allowed to continue for more
than 12seconds. After that, there must be
108seconds without operation!