Wilo DrainLift S User manual

2544878 ED.01-03/2016 WH
Pioneering for You
Wilo-DrainLift S
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
nl Inbouw- en bedieningsvoorschriften
sv Monterings- och skötselanvisning
hu Beépítési és üzemeltetési utasítás
cs Návod k montáži a obsluze
ru Инструкция по монтажу и эксплуатации
uk Iнструкція з монтажу та експлуатації

Fig. 3
Fig. 2 Fig. 5
Fig. 1
1
3
3
24
4
55
6
9 9
6
6
6
7
78
1
1
1
2
2
40...60 mm
1
2
3
4
5
7
6
10...20 mm
1
1
1
1
1
3
2
3
3
4
4
4
5
5
1
2
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4

Fig. 7Fig. 6
Fig. 8
Fig. 4
45
290
45
60
45290
4560
45 45
45
80
min.
180 mm
1:50
1
2
3
4
5
5
1
15 mm
1 2
1
3
2

Fig. 9
WSK
M
3~
M
1~
L N
DrainAlarm
ON / OFF
SR 801
L N
1~230V/50Hz
1
brown yellow green white
grey(blue) brown black
2 3 4 5
L1 L2 L3 PE
3~400V 50/60Hz
L1
(L)
L2
(N)
PE
1~230V 50/60Hz
1~230V/50Hz
30
15
0
Seconds
ON
100 K
DIP
1234567
PE
SSM
1 2 37 8 9 4 5 6
GLWSK HW
T1
1 3 5 13 A1
2 4 6 14 A2
T2 T3
L1 L2 L3 NO
1
32 3

Installation and operating instructions Wilo-DrainLift S 25
English
1. Introduction 26
1.1. About this document 26
1.2. Personnelqualications 26
1.3. Copyright 26
1.4. Subject to change 26
1.5. Warranty 26
2. Safety 27
2.1. Instructions and safety instructions 27
2.2. General safety information 27
2.3. Electrical work 27
2.4. Safety and monitoring equipment 28
2.5. Conduct during operation 28
2.6. Fluids 28
2.7. Sound-pressure 28
2.8. Standards and guidelines used 28
2.9. CE marking 28
3. Product description 28
3.1. Intendeduseandeldsofapplication 28
3.2. Set-up 29
3.3. Operating principle 30
3.4. Operating modes 30
3.5. Technical data 30
3.6. Type key 30
3.7. Scope of delivery 30
3.8. Accessories (optionally available) 30
4. Transportation and storage 31
4.1. Delivery 31
4.2. Transport 31
4.3. Storage 31
4.4. Return delivery 32
5. Installation 32
5.1. General 32
5.2. Installation types 32
5.3. Installation 32
5.4. Electrical connection 36
6. Commissioning 36
6.1. Checking the installation 37
6.2. Operation 37
6.3. Rotation direction monitoring (only for the three-
phase version) 37
6.4. Level control 37
6.5. Operation 37
6.6. Emergency operation 38
7. Shutdown/disposal 38
7.1. Switching off the unit 39
7.2. Removal 39
7.3. Return delivery/storage 39
7.4. Disposal 39
8. Maintenance and repair 39
9. Troubleshooting and possible solutions 40
9.1. Overview of possible malfunctions 40
9.2. Overview of possible causes and their remedies40
9.3. Further steps for troubleshooting 40
10. Appendix 40
10.1. Spare parts 40

26 WILO SE 03/2016 V06 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 technical regulations and drawings
which may not be reproduced or distributed,
either completely or in part, or used for purposes
of competition, or shared with others without the
express consent of the manufacturer. Illustrations
may differ from the original and serve only as
example illustrations of the lifting unit.
1.4. Subject to change
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
Ingeneral,thespecicationsinthecurrent“gen-
eral terms and conditions” apply for the warranty.
Youcanndthesehere:
www.wilo.com/legal
Any deviations must be contractually agreed and
shall then be given priority.
1.5.1. General
The manufacturer is obliged to correct any de-
fects found in the lifting units it sells, provided
that the defects meet one or more of the follow-
ingrequirements:
• 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 prescribed.
• All monitoring devices are connected and were
tested before commissioning.
1.5.2. Warranty period
The duration of the warranty period is stipulated
in the “general terms and conditions”.
Any deviations must be contractually agreed.
1.5.3. Spare parts, add-ons and modications
Only genuine spare parts from the manufacturer
may be used for repairs, replacements, add-ons
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.
In general, repairs should only be carried out by
Wilo customer service.
1.5.6. Exclusion from liability
No warranty claims will be accepted or liability
will be assumed for lifting unit damage if any of
thefollowingitemsapply:
• Inadequatecongurationbythemanufacturer
due to the information provided by the operator
orcustomerbeinginsufcientorincorrect
• Non-compliance with safety instructions and
workinginstructionsasspeciedinthisoperating
and maintenance manual
• Improper use
• Incorrect storage and transport
• Improper assembly/dismantling
• Insufcientmaintenance
• Incorrect repairs
• Inadequate construction site or construction work
• 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.

Installation and operating instructions Wilo-DrainLift S 27
SAFETY English
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
Symbol for prohibited action, e.g. No entry!
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 information
• 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 operator must report any faults or irregulari-
ties that occur to a line manager immediately.
• The end-user must shut down the equipment im-
mediately if defects occur that represent a safety
risk.Theseinclude:
• Failure of the safety and/or monitoring devices
• Damage to the collection reservoir
• Damage to electrical equipment, cables and
insulation
• 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 only be kept in
their designated places so that they can be found
quickly.
• When welding and/or working with electronic
devices, make sure there is no risk of explosion.
• Onlyuseliftinggearwhichislegallydenedas
suchandofciallyapproved.
• The lifting gear must be kept safely and must be
suitable for the conditions of use (weather, hook-
ing unit, load, etc.).
• Mobile equipment for lifting loads should be
used in such a way that it is guaranteed to remain
stable during operation.
• When using mobile equipment for lifting
non-guided loads, take action to prevent tipping,
shifting, sliding, etc.
• Measures should be taken to ensure that no
person is ever directly beneath a suspended
load. Furthermore, it is also prohibited to move
suspended loads over workplaces where people
are present.
• If mobile equipment is used for lifting loads, a
second person should be present to coordinate
the procedure if required (for example, if the
operator’seldofvisionisblocked).
• 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.
2.3. Electrical work
DANGER due to electrical voltage!
Improper procedures during electrical work
may result in fatal injuries caused by electric
shock! This 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. Nev-
er immerse the cable end in uid and always
protect it from moisture. Unused wires must
be insulated!

28 WILO SE 03/2016 V06 DIN A4
English PRODUCT DESCRIPTION
The lifting units are operated with alternating
or three-phase current. The governing nation-
al directives, standards 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 protec-
tion switch (RCD) must be provided.
The section entitled ‘Electrical connection’ must
be observed when connecting the product. The
technicalspecicationsmustbeobservedstrictly.
Our 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 electri-
cal switching system, always comply with the
requirements of the switchgear manufacturer for
the purposes of electromagnetic compatibility
(EMC).
Connections may only be made providing the
switchgear meets the harmonised EU standards.
Mobile radio equipment may cause malfunc-
tions 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 equipment
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. Conduct during operation
When operating the lifting unit, always follow
the locally applicable laws and regulations for
work safety, accident prevention and handling
electrical machinery. To help ensure safe working
practice, the responsibilities of employees should
beclearlyspeciedbytheoperator.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 in drinking water is not permitted!
2.7. Sound-pressure
Depending on several factors, the sound-pressure
level may vary during operation (such as installa-
tion, 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. Standards and guidelines used
The lifting unit is subject to various European
directives and harmonised standards. Refer to the
EC declaration of conformity for precise informa-
tion about these.
In addition, various standards are used as a basis
for operating, assembling and dismantling the
lifting unit.
2.9. CE marking
The CE marking is attached to the rating plate.
3. Product description
The lifting unit has been manufactured with great
care and is subject to constant quality controls.
Trouble-free operation is guaranteed if they are
installed 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 – explosive uids!
It is strictly prohibited to pump explosive u-
ids (gasoline, kerosene etc.). 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!

Installation and operating instructions Wilo-DrainLift S 29
PRODUCT DESCRIPTION English
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 media
• Drinking water
be used.
The system must be installed in accordance with
thegeneralrulesasdetailedinEN12056and
DIN1986‑100.
Intended use includes compliance with this man-
ual. Any other use is regarded as non-compliant
with 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:600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.permittedpressureinpressurepipe:1.5bar
• Max.uidtemperature:40°C,60°Cformax.
3min
• Max.ambienttemperature:40°C
• Operatingmode:S315%,120s
The unit is not designed for continuous duty!
The maximum volume ow applies to intermit-
tent periodic duty according to EN60034-1!
• Also comply with further information in the
“Technical data” section!
3.2. Set-up
The Wilo-DrainLift S is a submersible, fully
automatic sewage lifting unit that is ready for
connection as a single-pump system.
Fig. 1: Description
1 Collection reservoir 6 Inlet DN 40
2 Inspection opening 7 Ventilation connection
3 Level control 8 Pressure connection
4 Motor 9 Fastening straps
5 Free choice of inlet surface areas
3.2.1. Collection reservoir
Gas and water-tight collection reservoir made
from PE plastic with tapering collection chamber
for reliable operation without any build-up of
deposits.
TheinletconnectionsDN100canbeselectedas
required on both sides and on the longitudinal
side.ThepressureconnectionDN80iscongured
vertically above the reservoir. Furthermore, the
liftingunithastwoinletconnectionsDN40and
oneventilationconnectionDN70.
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. Motor
The motor that is mounted is a watertight,
encapsulated dry motor with a stainless steel
housing. 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 winding monitoring for the three phase
motor is displayed and reset via the connected
switchgear.
• The winding monitoring for the AC motor is au-
tomatically switching. This means that the motor
is switched off if it overheats and is automatically
switched on again when it has cooled down.
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 for “Pump ON”
and “High water alarm” are pre-set. The switch-
ingpointfor“PumpOFF”isdenedbytheset
follow-up time of the pump.
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 length
from the motor to the switchgear is 4 m and from
switchgear to plug 1.5 m. Detailed information
about the switchgear can be found in the en-
closed installation and operating instructions.
For exact details on connection, see the con-
nection diagram in this operating and mainte-
nance manual.

30 WILO SE 03/2016 V06 DIN A4
English PRODUCT DESCRIPTION
3.2.5. Versions
The lifting unit is available in the following ver-
sions:
• Single-phase version including switchgear and
shockproof plug
• Three-phase version including switchgear and
CEE plug
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.
If the high water level has been reached, an
acoustic and optical warning is given, the forced
switch-on of the pump follows and the col-
lective fault signal is activated. As soon as the
water drops below the high water level, the pump
is switched off once the follow-up time has
elapsed, and the warning message is acknowl-
edged automatically.
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15%/120s
operatingtime18s/downtime102s
3.5. Technical data
Approved eld of application
Max.intake/h: 600 l
Max. admissible pressure in
thedischargepipeline: 1.5 bar
Max.deliveryhead[H]: See rating plate
Maximumvolumeow[Q]: See rating plate
Max. permitted geodesic
deliveryhead: 5 m
Fluidtemperature[t]: +3...+40°C
Max.uidtemperature: +60°Cformax.3min
Ambienttemperature: +3...+40°C
Max.solidgrainsize: 40 mm
Motor data
Mainsconnection[U/f]: See rating plate
Power consumption [P1]: See rating plate
Rated power [P2]: See rating plate
Ratedcurrent[IN]: See rating plate
Speed[n]: See rating plate
Activationtype[AT]: direct
Protectionclassunit: IP68(2mWs,7days)
Switchgearprotectionclass: IP54
Insulationclass[Cl.]: H
Max.switchingoperations/h: 30
Cablelength: 4 m + 1.5 m
Operatingmode: S315%/120s
Connections
Pressureconnection: DN 80/PN 10
Inletconnection: DN 100, 2x DN 40
Ventilationconnection: DN 70
Dimensions and weights
Grossvolume: 45 l
Switchingvolume: 21 l
Switching level ON (for
installationlevel): 180 mm
Dimensions(WxHxD): 799 x 499 x 300 mm
Diagonaldimension: 853 mm
Sound‑pressurelevel*: 70 dB(A)
Weight: 30 kg
* The sound-pressure level depends on the
duty point and may vary. Incorrect installation
or impermissible operation can increase the
sound-pressure level.
3.6. Type key
Example: Wilo-DrainLift S 1/6M RV
DrainLift Lifting unit
SSize
1Single-pump system
6Maximum delivery head in m at Q = 0
M
Mainsconnectionversion:
M = 1~230 V, 50 Hz
T = 3~400 V, 50 Hz
RV Version with non-return valve
3.7. Scope of delivery
• Sewage lifting unit ready for connection with
switchgear and plug
• 1xinletsealDN100forplasticpipe(Ø110mm)
• 1xholesaw(Ø124)forinletDN100
• 1xnon‑returnvalveDN80(onlyfor“RV”version)
• 1x Flange connector DN 80/100
• 1x PVC hose section (Ø 50 mm) with clamps for
inletconnectionDN40
• 1xcollarforventingconnectionDN70
• 1setofxationmaterial(2mountingbrackets,
screws, wall plugs, washers)
• 3x sound absorption strips for insulation of struc-
ture-borne noise
• Installation and operating instructions
3.8. Accessories (optionally available)
• Onpressureside:
• DN80angeconnectorforconnectionofa
DN80pressurepipe

Installation and operating instructions Wilo-DrainLift S 31
TRANSPORTATION AND STORAGE English
• FlangegatevalveDN80madeofcastmaterial
• Onintakeside:
• FlangeconnectorDN100forconnectionofa
angegatevalve
• FlangegatevalveDN100madeofcastmaterial
• DN100gatevalvemadeofPVCwithxedpipe
ends
• 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
• Horn 230 V, 50 Hz
• Flash light 230 V, 50 Hz
• Signal lamp 230 V, 50 Hz
• Smart Home radio transmitter for networking
with the Wilo wibutler
4. Transportation and storage
DANGER due to toxic 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 death. 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 freight documentation.
4.2. Transport
Only the designated and approved fastening
devices, transportation and lifting equipment
may be used for transportation. It must have
asufcientbearingcapacityandsafeworking
load in order for the lifting unit to be transported
safely. When using chains, they must be secured
against slipping.
Thepersonnelmustbequaliedforthetasksand
must follow all applicable national safety regula-
tions 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 transportation 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 unit 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 toxic 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.
• The power supply cables should be protected
against kinking, damage, and moisture. Further-
more, mounted plugs and switchgear must also
be protected against moisture ingress.
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 be replaced by a
qualied electrician immediately.
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 pump can
be stored over a lengthy period. However, note
that the elastomer components and coatings are
subject to natural embrittlement. If the prod-
uct is to be stored for longer than 6 months, we
recommend checking these parts and replacing
them as necessary. Consult the manufacturer for
further details.

32 WILO SE 03/2016 V06 DIN A4
English INSTALLATION
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 design and operation of technical sewage sys-
tems, 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 types
• Stationary dry well installation in buildings and
pump chambers
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: 600 l
• Max. suction head: 5 m
• Max. permitted pressure in pressure pipe:
1.5bar
DANGER - 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 and mounted switchgear 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:
• This work must be performed by specialist per-
sonnel and electrical work must be performed by
aqualiedelectrician.
• 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500x500x500mm.

Installation and operating instructions Wilo-DrainLift S 33
INSTALLATION English
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.
• Power supply cables must be laid out in such a
way that safe operation and trouble-free instal-
lation/dismantling are possible 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isnotoverow‑proof.
Ensure suitable installation.
• Structural components and foundations must be
ofsufcientstabilityinordertoallowtheproduct
tobexedsecurelyandfunctionally.Theoperator
or the supplier is responsible for provision of
the foundations and their suitability in terms of
dimensions, stability and strength.
• Check that the available design documentation
(installation plans, layout of the operating space,
intake ratios) 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pumpchamber:
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 pump
chamber. Carelessness or wearing inappro-
priate clothing could result in a fall. There is a
risk of fatal injury! Take all necessary safety
precautions to prevent this.
• Rough solid material must be removed.
• The pump chamber must be decontaminated if
necessary.
• A second person must be present for safety
reasons.
• Take the necessary counter measures if there is
a risk of toxic or suffocating gases collecting.
• 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 set-down
location must have a solid bearing surface. Two
transport straps must be used as load-bearing
equipment for transporting the lifting unit.
These must be attached to the reservoir. Lifting
gear must be technically approved. Also refer to
all regulations, rules and laws for working with
heavy and suspended loads. Wear appropriate
protective clothing/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 depth of the borehole depends on the length
of the bolts. The drilling hole 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
pump chambers
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
• ConnectingtheDN100maininlet
• Connecting the ventilation line
• ConnectingDN40inlets
Positioning the lifting unit and anchoring it to
the oor
Fig. 2: Installing the lifting unit
1 Sound absorption strip 2 Mounting bracket
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!

34 WILO SE 03/2016 V06 DIN A4
English INSTALLATION
NOTE
• ThepressurepipemusthaveDN80orDN100in
areaswhereDINEN12050‑1applies!
• AccordingtoEN12056‑4,theowrateatthe
duty point in the pressure pipe 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 non-return valve with ventilation device must
betteddirectlyafterthepressureport.This
allows the pressure pipe to be drained if the unit
is subsequently removed.
• Agatevalvemustbetteddirectlyafterthe
non-return valve. The pressure pipe is then
mountedonthisusingangeconnectors.
Fig. 3: Connecting the pressure pipe
1 Lifting unit 5 Pressure pipe
2 Pressure port 6 Flange connector
3 Non-return valve 7Flexible connecting
hose
4 Gate valve
1. Route the pressure pipe so it is perpendicular to
the pressure port. Please refer to the installation
plan in the catalogue for the precise dimensions
of the lifting unit.
2. Install the supplied non-return valve on the pres-
sure port.
3. Install the gate valve on the non-return valve.
4. Pushtheexibleconnectinghoseoverthedis-
charge pipeline.
5. Plugtheangeconnectorintotheexiblecon-
necting hose and mount on the gate valve.
To ensure that the system is installed acousti-
cally isolated at the discharge pipeline, there
must be a distance of 40–60 mm between end
discharge pipeline and the end of the ange
connector.
If the distance is too small, the discharge pipe
or the ange connector must be shortened. If
the distance is too large, the hose section can-
not be properly secured.
6. Aligntheexibleconnectinghosetothecentre
and use the enclosed pipe clasp to attach to the
angeconnectorandtothedischargepipeline.
Max. tightening torque: 5 Nm
Connecting the DN100 main inlet
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: Free 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
• then 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
absolutely leak-tight.
• 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.
Fig. 5: Connecting the inlet
1 Reservoir wall 4 Inlet pipe
2 Hole 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 hole saw to cut the hole for the
inlet into the reservoir wall. 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 hole saw!
• Reduce the speed of the drill.
• Vary the feed pressure when drilling.
• Checktheholediameter:DN100=124mm
NOTE
Drill the connection for the inlet carefully. The
subsequent impermeability of the connection
depends on this!

Installation and operating instructions Wilo-DrainLift S 35
INSTALLATION English
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 ventilation 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.
The connecting port DN 70 is made open at the
factoryandattachedwithaKonxconnectorto
the reservoir. For a connection to the ventilation
line,aKonxconnectoristobeopenedbytearing
theap.Theventilationpipethenonlyhastobe
put on.
Connecting DN40 inlets
As a general rule, it is recommended for all inlets
to be routed to the lifting unit centrally within an
inlet pipe. However, because this is not always
possible, the Wilo-DrainLift S has two additional
DN40connections:
• 1x next to the ventilation connection
• 1x on the front end
To guarantee correct inlet to and operation of the
liftingunit,onlytheDN40connectionnexttothe
ventilation connection should be used.
TheDN40connectiononthelongitudinalsideis
chieyintendedforuseasaxedconnectionofa
diaphragm hand pump.
NotethefollowingpointswhenusingDN40
connections:
• 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 min. connection height is 180 mm.
NOTE
WhenusingtheDN40connectiononthelon-
gitudinal side, it is always possible that drainage
problems will arise for physical reasons. The
inlet must be installed with a loop. The loop
must have an inlet height of 180 mm!
Fig. 6: Installation example of DN40 inlet on the longitudinal side
• 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40 inlet next the ventilation pipe
1 Inlet connecting piece 4 Hose section
2 Hole saw for DN 40 5 Pipe clamp
3 Inlet pipe
1. Open the connecting port with a suitable hole
saw. If no hole saw is available, the connecting
piece can also be opened using a hand saw. To do
this, saw off the cover above the lip.
2. Deburr and smooth the opening.
3. Push the supplied hose section over the connect-
ing port and secure it with a pipe clamp. Max.
tightening torque: 5 Nm
4. Push another pipe clamp over the hose section,
insert the inlet into the hose section and connect
bothpartsrmlywiththepipeclamp.Max. tight-
ening 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.
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: Installation of the diaphragm hand pump
1 Diaphragm hand pump
2InletconnectionDN40onthefrontlongitudinalside
3 Pressure pipe
The connection to the lifting unit is made at the
DN40inletonthefrontlongitudinalside.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!

36 WILO SE 03/2016 V06 DIN A4
English COMMISSIONING
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 com-
pany, in accordance with locally applicable
regulations. For more about this, also read the
installation and operating instructions for the
tted switchgear.
• 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 earth
conductor connection must comply with local
regulations.
• A residual-current-operated protection switch
(RCD) must be installed in accordance with the
local regulations!
• Thettedswitchgearmustinstalledtobeover-
ow‑proof.
• The power supply on the mains side for the
lifting unit with three-phase current connection
(3~400V)musthaveaclockwiserotatingeld.
5.4.1. Mains fuses
The connection to the local power network is
done at the switchgear.
For this, observe the installation and operating
instructions for the tted switchgear.
5.4.2. Mains connection
The lifting unit is equipped with a shock-proof or
CEE plug. To connect to the mains, a shock-proof
socket (acc. to VDE 0620 or the respective local
regulations)or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.
For exact details on connection, see the con-
nection diagram in this operating and mainte-
nance manual.
Fig. 9: Wilo-DrainLift S connection diagram
1 Motor contactor
2 Earth terminals
3 Terminal strip for signal transmitter and alarm signal
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 about
220mm(above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 converter
Operation on the frequency converter is not
possible.
6. Commissioning
The “Commissioning” section contains all the
important instructions for operating personnel
on commissioning and operating the lifting unit
safely.
The following general conditions must always be
met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!
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 checked to ensure that they
work properly.
• The lifting unit is suitable for use under the speci-
edoperatingconditions.
• When working in pump chambers, a second per-
son must be present for safety reasons. If there is
ariskoftoxicgasesforming,sufcientventilation
must be ensured.

Installation and operating instructions Wilo-DrainLift S 37
COMMISSIONING English
6.1. Checking the installation
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:
• Floorxation
• Mechanical connections
• Inlet with shut-off valve
• Discharge pipe with non-return valve and shut-
off device
• Check for the correct position of the venting
screw on the non-return valve
• Venting via roof
• Electricalconnection:
• Forthethree‑phaseversion:Clockwiserotating
eldpresent.
• The lifting unit must be properly fused and
grounded.
• Assembling the switchgear
• Mounting of the shock-proof or 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.
6.2. Operation
Theliftingunitisoperatedviathettedswitch-
gear. This is already pre-set for the operation of
the system.
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 direction monitoring (only for the
three-phase version)
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:600l
• Max.suctionhead:5m
• Max.permittedpressureinpressurepipe:1.5bar
• Max.uidtemperature:40°C,60°Cformax.
3min
• Ambienttemperature:3...40°C
• Operatingmode:S315%,120s
• Fluid is present.
Dry running can lead to damage to the motor,
and is strictly prohibited!
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 one complete pump cycle.
This allows the unit to be checked for leaks.
It might be necessary to set the pump's follow-up
time 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 shut-off valves on the inlet and pres-
suresides.Thecollectionreservoirislledslowly.
4. The unit is now switched on and off using the
level control.
5. One complete pumping procedure must be per-
formed for a test run.
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 of the non-return
valve.
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
Thepumprun‑timeissetatthefactoryfor8sec-
onds.Iftheslurpingsoundthatoccursbrieyat
the end of the pumping process is a bother, the
follow-up time can be reduced.

38 WILO SE 03/2016 V06 DIN A4
English SHUTDOWN/DISPOSAL
The specications for setting the follow-up
time can be found in the operating and mainte-
nance manual of the tted switchgear.
• The following information should be taken into
considerationwhensettingthepumprun‑time:
• Thepumprun‑timeshouldnotexceed18sec-
onds.
These values must not be exceeded because
otherwise the system will be operating outside
the permissible range.
BEWARE of material damage!
Depending on structural conditions and the
laying of the discharge pipeline, there is a
possibility of pressure shocks, which could
damage or destroy the facility and/or the
pressure pipeline! In this case, we recommend
the use of a non-return valve with additional
counterweight.
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.
The exact description for setting the manual
operation can be found in the operating and
maintenance manual of the tted switchgear.
BEWARE of overload!
The lifting unit is only approved for inter-
mittent operation (S3). Continuous duty can
overload the motor and damage it. Manual
operation is not allowed to continue for more
than 18seconds. After that, there must be a
rest period of 102seconds.
6.6. Emergency operation
In the event of a failure of the unit, there are
various possibilities for providing emergency
operation.
DANGER due to toxic substances!
During emergency operation, there is poten-
tial for contact with uids that represent a
health hazard. The following points must be
observed without fail:
• Wear appropriate full-body protection as well
as protective goggles and mouth protection.
• After use, the diaphragm hand pump as well
as the hoses used (in exible installation)
must be ushed through with clean water and
disinfected.
• If the lifting unit overows, the unit and
the operating space as well as all ooded
components must be thoroughly cleaned and
disinfected.
• Immediately wipe up drips.
• Channel the ushing water into the sewer
system at suitable points!
• The protective clothing and cleaning cloths
must be disposed in accordance with waste
code TA52402 and EC Directive 91/689/EEC
or with local directives.
6.6.1. Overow of the lifting unit
Theliftingunitisoverow‑proof,andcancontin-
uetobeoperatedeveninoverowedcondition.
Thefollowinglimitvaluesmustnotbeexceeded:
• Max.oodingheight:2mWS
• Max.oodingtime:7days.
NOTE
Themountedswitchgearisnotoverow‑proof.
To ensure operation of the unit even in the
eventofanoverow,theelectricalconnections
must be installed at a suitably high level!
6.6.2. Level control defective
If the level control is defective, the collection
reservoir can be emptied in manual operation.
For information about this, refer to the “Manual
operation” section.
6.6.3. Failure of the lifting unit
If the lifting unit fails completely, the sewage in
the collection reservoir can be pumped into the
pressure pipe using the diaphragm hand pump.
1. Close the gate valve in the inlet.
2. Close the gate valve in the pressure pipe.
3. Pumptheuidoutofthecollectionreservoir
into the pressure pipe using the diaphragm hand
pump. Also observe the operating instructions for
the diaphragm hand pump.
7. Shutdown/disposal
• All work must be carried out with the greatest
care.
• Proper protective clothing is to be worn.
• When working in pump chambers, it is essential
to comply with the corresponding local protective
measures. A second person must be present for
safety reasons.

Installation and operating instructions Wilo-DrainLift S 39
MAINTENANCE AND REPAIR English
• Lifting equipment in perfect technical condition
andofciallyapprovedload‑bearingequipment
must be used for lifting and lowering the lifting
unit.
RISK of death due to malfunction!
Lifting gear and equipment must be in
perfect technical condition. Work may only
commence if the lifting equipment has been
checked and found to be in perfect working
order. If it is not inspected, fatal injuries may
result.
7.1. Switching off the unit
BEWARE of burns!
The motor housing can reach temperatures
well in excess of 40 °C. There is a risk of
burns! After switching off, rst let the motor
cool down to ambient temperature.
1. Close the gate valve in the inlet pipe.
2. Drain the collection reservoir. To do this, switch
the unit on in manual operation using the manual
buttonfornomorethan20seconds.
3. Switch the lifting unit to standby mode via the
switchgear.
4. Pull the plug out of the socket.
5. Secure the unit against being unexpectedly
switched back on!
6. Close the gate valve in the pressure pipe.
7. Now it is possible to start the work of removal,
maintenance and putting into storage.
7.2. Removal
DANGER due to toxic substances!
During removal, there is potential for contact
with uids that represent a health hazard. The
following points must be observed without
fail:
• Wear appropriate full-body protection as well
as protective goggles and mouth protection.
• Immediately wipe up drips.
• All components must be cleaned and disin-
fected!
• Channel the ushing water into the sewer
system at suitable points!
• The protective clothing and cleaning cloths
must be disposed in accordance with waste
code TA52402 and EC Directive 91/689/EEC
or with local directives.
1. Switch off the unit as described in the “Switching
off the unit” section.
2. Close all gate valves.
3. Open the non-return valve using the ventilation
device in order to drain the pressure pipe into the
reservoir.
4. Disconnect the connection between the inlet
pipe and the inlet seal, and pull the inlet pipe out
of the seal.
5. Disconnect the connection between the non-re-
turn valve and the pressure port.
6. Disconnect the connection between the ventila-
tion pipe and the ventilation connection, and pull
the pipe up off the connecting piece.
7. AlsoremovetheDN40inletsifthereareany.
8. Then disconnect the diaphragm hand pump from
the lifting unit if it is installed.
9. Once all connections have been disconnected,
release the anchoring points of the lifting unit in
theoor
10. Now the lifting unit can be pulled carefully out of
the pipework.
11. Flush through the lifting unit with clean water and
disinfect it
12. Firmly close all connecting pipes, clean and disin-
fect them.
13. Clean the operating space and disinfect it if
necessary.
7.3. Return delivery/storage
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!
For return delivery and storage please also refer
to the “Transport and storage” section!
7.4. Disposal
7.4.1. Protective clothing
The protective clothing and cleaning cloths
must be disposed in accordance with waste code
TA52402andECDirective91/689/EECorwith
local directives.
7.4.2. Product
Proper disposal of this product avoids damage to
the environment and risks to personal health.
• Use the services of public or private waste dis-
posal companies, or consult them for the disposal
of the product or parts thereof.
• For more information on proper disposal, please
contactyourlocalcouncilorwastedisposalofce
or the supplier from whom you obtained the
product.
8. Maintenance and repair
For reasons of safety, and thus to guarantee cor-
rect function of the lifting unit, it must always be
maintained by Wilo customer service.
The maintenance intervals for lifting units are
determinedbyEN12056‑4:
• ¼ year in the case of commercial companies
• ½ year for units in multi-family houses
• 1 year for units in single-family houses