Wilo DrainLift S Series User manual

Pioneering for You
·
DrainLift S
2544878 • Ed.02/2017-06
en Installation and operating instructions

en
Installation and operating instructions DrainLift S 3
Table of contents
1 General information ................................................................................................................................................................. 5
1.1 About these instructions ..................................................................................................................................................................................5
1.2 Copyright ............................................................................................................................................................................................................5
1.3 Subject to change..............................................................................................................................................................................................5
1.4 Warranty..............................................................................................................................................................................................................5
2 Safety......................................................................................................................................................................................... 5
2.1 Identification of safety instructions................................................................................................................................................................5
2.2 Personnel qualifications....................................................................................................................................................................................7
2.3 Electrical work ....................................................................................................................................................................................................7
2.4 Monitoring devices ............................................................................................................................................................................................7
2.5 Pumping fluids that are hazardous to health.................................................................................................................................................7
2.6 Explosive atmosphere in the collection reservoir .........................................................................................................................................7
2.7 Transport.............................................................................................................................................................................................................8
2.8 Installing/dismantling........................................................................................................................................................................................8
2.9 During operation ................................................................................................................................................................................................8
2.10 Maintenance tasks.............................................................................................................................................................................................8
2.11 Operator responsibilities...................................................................................................................................................................................8
3 Application/use......................................................................................................................................................................... 8
3.1 Intended use.......................................................................................................................................................................................................8
3.2 Improper use.......................................................................................................................................................................................................9
4 Product description.................................................................................................................................................................. 9
4.1 Design..................................................................................................................................................................................................................9
4.2 Monitoring devices ......................................................................................................................................................................................... 10
4.3 Operating principle ......................................................................................................................................................................................... 10
4.4 Operating modes............................................................................................................................................................................................. 10
4.5 Operation with frequency converter............................................................................................................................................................ 11
4.6 Type key........................................................................................................................................................................................................... 11
4.7 Technical data .................................................................................................................................................................................................11
4.8 Scope of delivery............................................................................................................................................................................................. 12
4.9 Accessories ...................................................................................................................................................................................................... 12
5 Transportation and storage................................................................................................................................................... 12
5.1 Delivery............................................................................................................................................................................................................. 12
5.2 Transport.......................................................................................................................................................................................................... 12
5.3 Storage ............................................................................................................................................................................................................. 13
6 Installation and electrical connection .................................................................................................................................. 13
6.1 Personnel qualifications................................................................................................................................................................................. 13
6.2 Installation types............................................................................................................................................................................................. 13
6.3 Operator responsibilities................................................................................................................................................................................ 13
6.4 Installation ....................................................................................................................................................................................................... 14
6.5 Optional: Installation of a diaphragm hand pump...................................................................................................................................... 19
6.6 Electrical connection...................................................................................................................................................................................... 19
7 Commissioning........................................................................................................................................................................ 20
7.1 Personnel qualifications................................................................................................................................................................................. 20
7.2 Operator responsibilities................................................................................................................................................................................ 20
7.3 Operation ......................................................................................................................................................................................................... 20
7.4 Application limits ............................................................................................................................................................................................ 21
7.5 Test run ............................................................................................................................................................................................................ 21
7.6 Adjusting the follow-up time ....................................................................................................................................................................... 21
8 Operation................................................................................................................................................................................. 21
8.1 Automatic mode ............................................................................................................................................................................................. 21
8.2 Manual operation ............................................................................................................................................................................................ 22
8.3 Emergency operation ..................................................................................................................................................................................... 22

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4 WILO SE 2017-06
9 Decommissioning/dismantling.............................................................................................................................................. 23
9.1 Personnel qualifications................................................................................................................................................................................. 23
9.2 Operator responsibilities................................................................................................................................................................................ 23
9.3 Removal............................................................................................................................................................................................................ 23
9.4 Clean and disinfect ......................................................................................................................................................................................... 24
10 Maintenance and repair.......................................................................................................................................................... 24
10.1 Personnel qualifications................................................................................................................................................................................. 25
11 Spare parts............................................................................................................................................................................... 25
12 Disposal.................................................................................................................................................................................... 25
12.1 Protective clothing .........................................................................................................................................................................................25
12.2 Information on the collection of used electrical and electronic products.............................................................................................. 25
13 Appendix.................................................................................................................................................................................. 25
13.1 Electrical connection diagram....................................................................................................................................................................... 25

General information en
Installation and operating instructions DrainLift S 5
1 General information
1.1 About these instructions These installation and operating instructions are an integral part of the product. Read
these instructions before commencing work and keep them in an accessible place at all
times. Strict adherence to these instructions is a precondition for the intended use and
correct operation of the product. All information and markings on the product must be
observed.
The language of the original operating instructions is German. All other languages of
these instructions are translations of the original operating instructions.
1.2 Copyright These installation and operating instructions have been copyrighted by the manufac-
turer. Contents, of whatever type, which may not be reproduced or distributed, or used
for purposes of competition and shared with others.
1.3 Subject to change The manufacturer reserves the right to make technical modifications to the device or
individual components. The illustrations used may differ from the original and are in-
tended as an example representation of the device.
1.4 Warranty The specifications in the current “General Terms and Conditions” apply to the warranty
and the warranty period. These can be found at www.wilo.com/legal
Any deviations must be contractually agreed and shall then be given priority.
Claim to warranty
If the following points are complied with, the manufacturer is obligated to rectify every
qualitative or constructive flaw:
▪The defects are reported in writing to the manufacturer within the warranty period.
▪Application according to intended use.
▪All monitoring devices are connected and tested before commissioning.
Exclusion from liability
Exclusion from liability excludes all liability for personal injury, material damage or fin-
ancial losses. This exclusion ensues as soon as one of the following applies:
▪Inadequate configuration due to inadequate or incorrect instructions by the operator or
the client
▪Non-compliance with installation and operating instructions
▪Improper use
▪Incorrect storage or transport
▪Incorrect installation or dismantling
▪Insufficient maintenance
▪Unauthorised repairs
▪Inadequate construction site
▪Chemical, electrical or electro-chemical influences
▪Wear
2 Safety This chapter contains basic information which must be adhered to during the individual
phases of the life cycle. Failure to follow the installation and operating instructions will
result in injuries to persons, damage to the environment and the device and result in the
loss of any claims for damages. Failure to follow the instructions can result in the fol-
lowing risks:
▪Danger to persons due to electrical, mechanical and bacteriological factors as well as
electromagnetic fields
▪Environmental risks due to leakage of hazardous substances
▪Property damage
▪Failure of important functions of the product
Additionally, the instructions and safety instructions in the other chapters must be
observed!
2.1 Identification of safety instruc-
tions These installation and operating instructions set out safety instructions for preventing
personal injury and damage to property. These safety instructions are shown differ-
ently:
▪Safety instructions relating to personal injury start with a signal word, are preceded by
a corresponding symbol and are shaded in grey.

en Safety
6 WILO SE 2017-06
DANGER
Type and source of the danger!
Consequences of the danger and instructions for avoidance.
▪Safety instructions for property damage start with a signal and are displayed without a
symbol.
CAUTION
Type and source of the danger!
Consequences or information.
Signal words
▪DANGER!
Failure to observe the safety instructions will result in serious injuries or death!
▪WARNING!
Failure to follow the instructions can lead to (serious) injuries!
▪CAUTION!
Failure to follow the instructions can lead to property damage and a possible total loss.
▪NOTE!
Useful information on handling the product.
Markups
‡Prerequisite
1. Work step/list
⇒ Information/instructions
▶ Result
Symbols
These instructions use the following symbols:
Danger of electric voltage
Danger of bacterial infection
Danger of explosion
Warning of hot surfaces
Personal protective equipment: Wear a safety helmet
Personal protective equipment: Wear foot protection
Personal protective equipment: Wear hand protection
Personal protective equipment: Wear mouth protection
Personal protective equipment: Wear safety goggles

Safety en
Installation and operating instructions DrainLift S 7
Autonomous work prohibited! A second person must be present.
Transport by two persons
Useful information
2.2 Personnel qualifications Personnel must:
▪Be instructed in the locally applicable accident prevention regulations.
▪Have read and understood the installation and operating instructions.
Personnel must have the following qualifications:
▪Electrical work: Electrical work must be carried out by a qualified electrician (in accord-
ance with EN50110-1).
▪Installation-/dismantling: The technician must be trained in the use of the necessary
tools and fixation materials for the relevant construction site. The technician must also
be trained in the processing of plastic pipes. In addition, the technician must be instruc-
ted in the locally applicable guidelines for sewage lifting units.
Definition of “qualified electrician”
A qualified electrician is a person with appropriate technical education, knowledge and
experience who can identify and prevent electrical hazards.
2.3 Electrical work ▪A qualified electrician must carry out the electrical work.
▪When connecting to the mains, comply with the locally applicable laws and regulations
of the local energy supply company.
▪Before commencing work, disconnect the device from the mains and secure it against
being switched on again without authorisation.
▪Personnel are trained on the execution of the electrical connection and the options for
switching off the device.
▪Comply with the technical specifications contained in these installation and operating
instructions and on the rating plate.
▪Earth the device.
▪Switchgears are to be arranged overflow-proof.
▪Replace defective power supply cables immediately. Contact customer service.
2.4 Monitoring devices The following monitoring devices must be provided on-site:
Circuit breaker
The size of the circuit breakers conforms to the rated current of the pump. The switch-
ing characteristics should comply with group B or C. Observe local regulations.
Residual-current device (RCD)
Comply with the regulations of the local energy supply company! The use of a residual-
current device is recommended.
If persons come into contact with the device and conductive fluids, secure the connec-
tion with a residual-current device (RCD).
2.5 Pumping fluids that are hazardous
to health When pumping fluids that are hazardous to heath, there is a risk of bacterial infection if
the user comes into contact with the fluid! Thoroughly clean and disinfect the device
during removal and prior to further use. The operator must ensure the following:
▪The following protective equipment is provided and worn when cleaning the device:
– Closed safety goggles
– Breathing mask
– Protective gloves
▪All persons are informed about the fluid, the associated danger and its correct handling!
2.6 Explosive atmosphere in the col-
lection reservoir Gas can collect in the collection reservoir when pumping sewage containing faeces.
These gas accumulations can escape into the operating space and create an explosive
atmosphere as a result of incorrect installation and maintenance work. This atmosphere
can ignite and lead to an explosion. In order to prevent an explosive atmosphere, ob-
serve the following points:
▪The collection reservoir must be undamaged (no cracks, leaks, porous material)! Take
any defective lifting units out of operation.

en Application/use
8 WILO SE 2017-06
▪Ensure all connections for the inlet, pressure pipe and venting are sealed tightly and in
accordance with regulations!
▪When opening the collection reservoir (e.g. during maintenance work), ensure appropri-
ate replacement of air!
2.7 Transport ▪Wear the following protective equipment:
– Safety shoes
– Safety helmet (when using lifting equipment)
▪Hold the reservoir when transporting the device. Never pull the power supply cable!
▪Devices weighing 50kg and over must be transported by two persons. Generally, it is
recommended that two persons transport the device.
▪If lifting equipment is used, observe the following points:
– Only use legally specified and approved lifting gear.
– Select the lifting gear based on the existing conditions (weather, attachment point,
load, etc.).
– Always attach the lifting gear to the attachment points.
– The stability of the lifting equipment must be ensured during operation.
– When using lifting equipment, a second person must be present to coordinate the
procedure if required (e.g. if the operator’s field of vision is blocked).
– Persons are not permitted to stand beneath suspended loads. Do not carry suspen-
ded loads over workplaces where people are present.
2.8 Installing/dismantling ▪ Wear the following protective equipment:
– Safety shoes
– Safety gloves against cuts
– Safety helmet (when using lifting equipment)
▪Locally applicable laws and regulations for work safety and accident prevention must be
complied with.
▪Disconnect the device from the mains and secure it against being switched on again
without authorisation.
▪Close the gate valve in the inlet and in the pressure pipe.
▪Provide adequate aeration in closed rooms.
▪When working in chambers and closed spaces, a second person must be present for
safety reasons.
▪Take immediate countermeasures if there is a build-up of toxic or suffocating gases!
▪Clean the device thoroughly both inside and outside.
2.9 During operation ▪Do not open the device!
▪Open all gate valves in the inlet and in the pressure pipe!
▪Ensure ventilation!
▪The operator is trained in the functionality and the options for switching off the device!
2.10 Maintenance tasks ▪Wear the following protective equipment:
– Closed safety goggles
– Safety gloves
▪Close the gate valve in the inlet.
▪Only carry out maintenance tasks mentioned in these installation and operating in-
structions.
▪Only original parts from the manufacturer may be used for maintenance and repairs.
Use of parts other than the original parts releases the manufacturer from any liability.
▪Collect any leakage of pumped fluid immediately and dispose of it according to the loc-
ally applicable guidelines.
2.11 Operator responsibilities ▪Installation and operating instructions must be in a language which the personnel can
understand.
▪Make sure that the personnel is relevantly trained for the specified work.
▪Provide the necessary protective equipment and make sure that the personnel wears it.
▪Safety and information signs mounted on the device must be always legible.
▪Train the personnel pertaining to the functioning of the system.
▪Eliminate risk from electrical current.
Children and persons below 16years or with reduced physical, sensory or mental capa-
cities or limited experience are prohibited from handling the device! A technician must
supervise persons below 18years!
3 Application/use

Product description en
Installation and operating instructions DrainLift S 9
3.1 Intended use ▪For the backflow resistant drainage of discharge points for buildings below the back-
flow level
▪Installation inside buildings (according to EN12056 und DIN1986‑100)
▪Pumping sewage with and without faeces (according to EN12050-1) out of the do-
mestic area in accordance with EN12056-1
A grease trap must be installed for pumping greasy sewage!
Application limits
Improper use and overstraining will damage the reservoir. Strictly adhere to the applica-
tion limits:
▪Max. intake/h: 600l
▪Max. positive suction head: 5m
▪Max. pressure in the pressure pipe: 1.5bar
▪Fluid temperature: 3...40°C
▪Ambient temperature: 3...40°C
CAUTION
Overpressure in the collection reservoir!
Exceeding the application limits can result in overpressure in the collection reservoir.
This can cause the collection reservoir to burst! The application limits must be
strictly observed! The maximum possible intake must always be less than the
volume flow of the lifting unit at the respective duty point!
3.2 Improper use
DANGER
Explosion due to pumping of explosive fluids!
Pumping of highly flammable and explosive fluids (gasoline, kerosene, etc.) in pure
form is strictly prohibited. There is a risk of fatal injury due to explosion! The lifting
unit is not designed for these fluids.
The following fluids may not be introduced:
▪Sewage from drainage objects that are located above the backflow level and can be
drained by natural fall (in accordance with EN12056-1).
▪Debris, ash, garbage, glass, sand, plaster, cement, lime, mortar, fibrous materials, tex-
tiles, paper towels, wet-wipes (e.g. fleece 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 ma-
nure, etc.)
▪Toxic, aggressive and corrosive media, such as heavy metals, biocides, pesticides, acids,
bases, salts, swimming-pool water (in Germany in accordance with DIN1986-3)
▪Cleaning agents, disinfectants, dishwashing or laundry detergents in excess amounts,
and such which have a high degree of foam formation
▪Drinking water
Intended use also includes compliance with this manual. Any other use is regarded as
non-compliant with the intended use.
4 Product description
4.1 Design Submersible, ready for connection and fully automatic sewage lifting unit as a single-
pump system for installation in buildings.

en Product description
10 WILO SE 2017-06
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Fig.1: Overview
1 Collection reservoir
2 Inspection opening
3 Level control
4 Motor
5 Free choice of inlet surface areas
6 Inlet DN40
7 Ventilation connection
8 Pressure connection
9 Transport/fastening straps
4.1.1 Collection reservoir Gas-tight and watertight collection reservoir made from plastic. The base of the reser-
voir is bevelled for reliable operation without any build-up of deposits. The inlet con-
nections DN100 can be selected as required on both sides and on one end. The pres-
sure connection DN80 is configured vertically above the reservoir. Furthermore, the
lifting unit has two inlet connections DN40 and one ventilation connection DN70.
For easy maintenance of the unit, the collection reservoir is equipped with an inspec-
tion opening.
Two fastening straps are provided on the collection reservoir for transport and fixation.
This allows the lifting unit to be gripped securely for transport and anchored in an anti-
buoyant way to the ground with the supplied fixation material.
4.1.2 Motor The motor that is mounted is a surface-cooled, watertight encapsulated motor with a
stainless steel housing. The cooling is done by the ambient air. The waste heat is given
off via the motor housing.
With single-phase AC motors, the operating capacitor is integrated in the motor.
4.1.3 Level control The level control is fitted in the collection reservoir. Rod float switches are used as sig-
nal transmitters. The switching points for “Pump ON” and “High water alarm” are pre-
set. The switching point for “Pump OFF” is defined by the set follow-up time of the
pump.
4.1.4 Switchgear The lifting unit is controlled via the fitted switchgear. The switchgear can also be used
to implement a collective fault signal (SSM). See the enclosed installation and operating
instructions for the precise switchgear specifications.
For detailed information on connecting the lifting unit to the switchgear, refer to
the connection diagram in this operating and maintenance manual!
4.2 Monitoring devices Monitoring of motor winding
The motor is equipped with thermal motor monitoring with bimetallic strips:
▪Single-phase current motor: The motor monitoring is self-switching. This means that
the motor is switched off if it overheats and is automatically switched on again when it
has cooled down.
▪Three-phase current motor: The motor monitoring is displayed and reset via the con-
nected switchgear.
High water alarm with collective fault signal
When the high water level is reached, an acoustic and optical alarm signal is given, the
forced switch-on of the pump follows and the collective fault signalling contact is ac-
tivated. An external alarm (horn, SMS via SmartHome connection) can be triggered via
this potential-free contact.
As soon as the water drops below the high water level, the pump is deactivated once
the follow-up time has elapsed, and the alarm signal is acknowledged automatically.
4.3 Operating principle The sewage that arrives is channelled into the collection reservoir via the inlet pipe,
where it collects. When the water level reaches the switch-on level, the pump is
switched on by the integrated level control and the collected sewage is pumped into
the connected pressure pipe. When the switch-off level is reached, the pump is deac-
tivated after the set follow-up time.

Product description en
Installation and operating instructions DrainLift S 11
4.4 Operating modes Operating mode S3: Intermittent periodic duty
This operating mode defines a switching cycle in a combination of periods of operation
and standstill. Specified value (e.g. S325%) relates to the operating time. The switch-
ing cycle has a duration of 10min.
If two values (e.g. S325%/120s) are specified, the first value relates to the operating
time. The second value specifies the max. period of the switching cycle.
The unit is not designed for continuous duty! The max. volume flow applies to inter-
mittent periodic duty according to EN60034-1!
4.5 Operation with frequency con-
verter Operation on the frequency converter is not permitted.
4.6 Type key Example: Wilo-DrainLift S 1/6M RV
DrainLift Sewage 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
4.7 Technical data Approved field of application
Max. intake per hour 600l
Max. pressure in the pressure
pipe
1.5bar
Max. delivery head 6m
Max. volume flow 35m³/h
Max. positive suction head 5m
Fluid temperature 3...40°C
Ambient temperature 3...40°C
Motor data
Mains connection 1~230V, 50Hz
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 direct
Operating mode S3 15%/120s
Protection class IP68
Cable length to plug 1.4m
Cable length to switchgear 4m
Plug Single-phase current: Shockproof plug
Three-phase current: CEEplug
Connections
Pressure connection DN80, PN10
Inlet connection 1x DN100, 2x DN40
Ventilation connection DN70
Dimensions and weights
Gross volume 45l
Switching volume 21l

en Transportation and storage
12 WILO SE 2017-06
Diagonal dimension 853mm
Weight 30kg
4.8 Scope of delivery ▪Sewage lifting unit ready for connection with switchgear and plug
▪1x inlet seal DN100 for plastic pipe (Ø110mm)
▪1x hole saw (Ø124mm) for inlet DN100
▪1x non-return valve DN80 (only for “RV” version)
▪1x flange connector DN80/100
▪1x PVC hose section (Ø50mm) with clamps for inlet connection DN40
▪1x collar for ventilation connection DN70
▪1x set of fixation material (2x mounting brackets, screws, wall plugs, washers)
▪3x sound absorption strips for insulation of structure-borne noise
▪Installation and operating instructions
4.9 Accessories On the pressure side
▪Flange connector DN80 for connection of a pressure pipe with flange connection
▪Flange gate valve DN80 made of cast material
On the inlet side
▪Flange connector DN100 for connection of a flange gate valve
▪Flange gate valve DN100 made of cast material
▪Gate valve DN100 made of PVC with fixed pipe ends
▪Inlet seal DN100
General
▪Diaphragm hand pump with R1½ connection (without hose)
▪3-way stopcock for switching over to the manual suctioning
▪Horn 230V, 50Hz
▪Flash light 230V, 50Hz
▪Signal lamp 230V, 50Hz
▪SmartHome radio transmitter for networking with the Wilo wibutler
5 Transportation and storage
5.1 Delivery After receiving the shipment, this must be checked immediately for defects (damage,
completeness). Defects must be noted on the freight documentation! Furthermore, de-
fects must be notified to the transport company or the manufacturer immediately on
the day of receipt of shipment. Subsequently notified defects can no longer be asser-
ted.
5.2 Transport
WARNING
Head and foot injuries due to lack of protective equipment!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety shoes
• Safety helmet must be used if lifting equipment are used!
Only remove the outer packaging at the place of utilisation to ensure that the lifting
unit is not damaged during transport. Use tear-proof plastic sacks of sufficient size to
package used lifting units for transport in a leak-proof manner.
The following points must also be observed:
▪To transport the device, use the carrying straps – never pull the power supply cable!
▪Transport with two persons.
▪If lifting equipment is used, observe the following points:
– Use legally specified and approved lifting gear.
– Select the lifting gear based on the existing conditions (weather, attachment point,
load, etc.).
– Always attach the lifting gear to the attachment points (handle or lifting eyelet).
– The stability of the lifting equipment must be ensured during operation.
– When using lifting equipment, a second person must be present to coordinate the
procedure if required (e.g. if the operator’s field of vision is blocked).
– Persons are not permitted to stand beneath suspended loads. Do not carry suspen-
ded loads over workplaces where people are present.

Installation and electrical connection en
Installation and operating instructions DrainLift S 13
5.3 Storage
DANGER
Danger due to fluids hazardous to health! Disinfect the lifting unit!
If the lifting unit is used to pump fluids that are hazardous to health, decontaminate
the lifting unit after dismantling and before carrying out any other work! There is a
risk of fatal injury! Observe the specifications in the work regulations! The operator
must make sure that the personnel have received and read the work regulations!
CAUTION
Total damage due to moisture ingress
Moisture ingress in the power supply cable damages the power supply cable and the
pump! Never immerse the end of the power supply cable in a fluid and firmly seal it
during storage.
Newly supplied lifting units can be stored for one year. For longer storage periods, con-
tact customer service.
The following must be observed for storage:
▪Place the lifting unit on a firm bearing surface and secure it against slipping and falling
over!
▪The max. storage temperature is -15°C to +60°C at a max. relative humidity of 90%,
non-condensing. Frost-proof storage at a temperature of 5°C to 25°C with relative
humidity of 40% to 50% is recommended.
▪Drain the collection reservoir completely.
▪Coil the power supply cables and attach them to the pump.
▪Seal the ends of the power supply cables against water ingress.
▪Remove the existing switchgear and store it according to the manufacturer’s instruc-
tions.
▪Tightly seal all open connections.
▪Do not store the lifting unit in rooms in which welding work is carried out. The resulting
gases or radiation can corrode the elastomer parts.
▪The lifting unit must be protected from direct sunlight and heat. Extreme heat can
cause damage to the reservoir and the pumps!
▪Elastomer parts are subject to natural brittleness. Contact customer service if the pump
must be stored for more than 6months.
After storage, the maintenance work according to EN12056‑4 must be carried out
prior to commissioning.
6 Installation and electrical con-
nection
6.1 Personnel qualifications ▪Electrical work: Electrical work must be carried out by a qualified electrician (in accord-
ance with EN50110-1).
▪Installation-/dismantling: The technician must be trained in the use of the necessary
tools and fixation materials for the relevant construction site. The technician must also
be trained in the processing of plastic pipes. In addition, the technician must be instruc-
ted in the locally applicable guidelines for sewage lifting units.
6.2 Installation types ▪Floor-mounted installation in buildings
▪Concealed floor installation in pump chambers outside of buildings
6.3 Operator responsibilities ▪Observe locally applicable accident prevention and safety regulations of trade associ-
ations.
▪Provide protective equipment and ensure that the protective equipment is worn by
personnel.
▪Observe all regulations for working under suspended loads when using lifting equip-
ment.
▪The operating space must be freely accessible in order to be able to easily deliver the
lifting unit incl. transport equipment. There must be adequate access to the operating
space, and existing elevators must have the required load-bearing capacity.

en Installation and electrical connection
14 WILO SE 2017-06
▪Structural components and foundations must have sufficient stability in order to allow
the device to be fixed securely and functionally. The operator is responsible for the pro-
vision and suitability of the structural component/foundation!
▪The installation surface must be horizontal and flat, as well as suitable for fixation with
anchors.
▪Carry out installation according to locally applicable regulations (DIN1986-100,
EN12056).
▪For correct installation and operation of the lifting unit, lay and prepare the pipes ac-
cording to the consulting documents.
▪Mains connection must be arranged overflow-proof.
6.4 Installation
WARNING
Hand and foot injuries due to lack of protective equipment!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety gloves
• Safety shoes
CAUTION
Material damage due to incorrect transport!
It is not possible to transport and to position the lifting unit alone. There is a risk of
material damage to the lifting unit! Always transport the lifting unit and align it at
the installation location with two persons.
▪Prepare operating space/installation location as follows:
– Clean, free of coarse solids
– Dry well
– Frost-free
– Well lit
▪Ensure adequate aeration of the operating space.
▪Ensure a clearance of min. 60cm around the system for maintenance work.
▪An additional pump sump in the operating space must be provided for draining large
leakages, min. dimensions: 500x500x500mm. Select the pump used according to the
delivery head of the lifting unit. Draining by hand must be possible in an emergency
situation.
▪The power supply cables must be properly laid. There must be no danger to the power
supply cables (i.e. tripping, damage during operation). Check whether the cable cross-
section and the cable length are sufficient for the selected installation type.
▪The mounted switchgear is not overflow-proof. Install the switchgear adequately high.
Ensure good operation!
▪To transport the lifting unit , use the carrying straps – never pull the power supply
cable! Transport with two persons.
Installation in the pump chamber
DANGER
Potentially fatal danger due to dangerous autonomous work!
Work in chambers and narrow rooms as well as work involving risk of falling are dan-
gerous work. Such work may not be carried out autonomously! A second person
must be present for safety reasons.
WARNING
Head injuries due to lack of protective equipment!
Danger of (serious) injuries during work. If lifting equipment is used, wear a safety
helmet!
Additionally comply with the following points if the lifting unit is installed in a pump
chamber:
▪Take immediate countermeasures if there is a build-up of toxic or suffocating gases!

Installation and electrical connection en
Installation and operating instructions DrainLift S 15
▪Note the diagonal dimension of the lifting unit.
▪It must be possible to attach lifting equipment safely. The storage place and the oper-
ating space/installation site must be accessible with the lifting equipment without any
difficulty. The set-down location must have a solid bearing surface.
▪Attach the lifting gear to the lifting unit using the two transport straps. Secure the
transport straps against slipping! Only use lifting gear which has been technically ap-
proved.
6.4.1 Note on fixation material The lifting unit can be installed on various constructions (concrete, steel, etc.). Select
the fixation material which is suitable for the relevant construction. For correct installa-
tion, observe the following instructions for the fixation material:
▪Avoid tearing or chipping of the construction surface, observe the minimum edge dis-
tances.
▪Ensure tight and secure installation, adhere to the prescribed borehole depth.
▪Drilling dust impairs holding strength, always blow out or vacuum out the borehole.
▪Only use components (e.g. screws, anchors, mortar cartridges) which are in perfect
condition.
6.4.2 Note on pipework The pipework is subjected to different pressures during operation. Pressure surges can
also occur (e.g. when closing the non-return valve) which may be several times higher
than the pump pressure, depending on the operating conditions. These different pres-
sures put a strain on the piping and the pipe adaptors. In order to ensure safe and fault-
less operation, the following parameters must be checked and adapted for the piping
and pipe adaptors and designed according to the requirements:
▪Pressure resistance of pipework and pipe adaptors
▪Tensile strength of the pipe adaptors (= longitudinal force fit connection)
The following points must also be observed:
▪Pipes are self-supporting.
▪Connect the pipes free of stress and vibrations.
▪No tensile or compressive forces must act on the lifting unit.
▪In order to allow the inlet pipe to drain automatically, lay the pipe with a slope to the
lifting unit.
▪Do not install constrictions/reductions!
▪Provide a gate valve in the inlet and the pressure pipe on-site!
6.4.3 Work steps The lifting unit is installed in the following steps:
▪Preparatory tasks.
▪Place the lifting unit.
▪Connect the pressure pipe.
▪Connect the main inlet.
▪Connect the vent.
▪Connect additional inlets.
6.4.4 Preparatory tasks ▪ Unpack the lifting unit and remove the securing mechanisms.
▪Check the scope of delivery.
▪Check all components are in proper working condition.
CAUTION!Do not install defective components! Defective components can lead to
system failures!
▪Place accessories to one side and keep them for later use.
▪Select the installation location.
NOTICE!Provide a clearance of min. 60cm around the lifting unit for maintenance
work!
6.4.5 Placing the lifting unit
11
2
2
Fig.2: Lifting unit underside
1 Sound absorption strip
2 Mounting bracket
Lifting units must be installed so they are prevented from twisting and also in an anti-
buoyant fashion, depending on the installation location. Anchor the lifting unit to the
floor using the mounting brackets.
‡Preparatory tasks have been completed.
‡Operating space prepared according to consulting documents.
1. Place the lifting unit at the installation location and align to the pipework.
CAUTION!Secure the switchgear to the lifting unit against falling. The
switchgear may be destroyed if it falls over!

en Installation and electrical connection
16 WILO SE 2017-06
2. Insert mounting bracket into the fastening strap (on both front ends) and mark the
drilling holes.
3. Remove mounting bracket and place lifting unit to one side.
4. Drill and clean the boreholes. NOTICE!Observe the information on the fixation
material used!
5. Tilt the lifting unit and attach the sound absorption strips to the underside of the
lifting unit.
WARNING!This work must be carried out by two persons. If the lifting unit slips,
it can lead to (severe) crushing injuries!
6. Reposition the lifting unit and insert the mounting bracket into the fastening strap.
7. Attach mounting bracket to the floor. NOTICE!Observe the information on the
fixation material used!
▶ Lifting unit is installed in the operating space in an anti-buoyant fashion and also
prevented from twisting. Next step: Connect the pressure pipe.
6.4.6 Connecting the pressure pipe Observe the following information when connecting the pressure pipe:
▪Pressure pipe in DN80 or DN100 (in accordance with DINEN12050‑1)!
▪The flow rate in the pressure pipe must be between 0.7m/s and 2.3m/s (in accordance
with EN12056‑4)!
▪Reducing the pipe diameter in the pressure pipe is not permitted!
▪Ensure all connections are completely tight!
▪To avoid backflow from the main public sewer, the pressure pipe must be installed as a
“pipe loop”.
The bottom edge of the pipe loop must be above the locally defined backflow level at
its highest point!
▪Pressure pipe installed must be frost-proof.
▪Install non-return valve with ventilation device at the discharge port.
The ventilation device allows the pressure pipe to be drained if the lifting unit is sub-
sequently removed.
▪Install the gate valve on the non-return valve.
40...60 mm
1
2
3
4
5
7
6
Fig.3: Fitting pressure connection
Lifting unit
2 Pressure connection
3 Non-return valve with ventilation device
4 Gate valve
5 Pressure pipe
6 Flange connector
7 Connecting hose, flexible
‡Pressure pipe installed correctly according to consulting documents and perpen-
dicular to the pressure port.
‡Installation materials available:
1x gate valve
1x non-return valve with ventilation device
1x connecting hose
2x pipe clamps
1. Install the supplied non-return valve on the pressure port.
2. Install the gate valve on the non-return valve.
3. Push the flexible connecting hose over the pressure pipe and secure against shift-
ing.
4. Install flange connector on the gate valve.
⇒ To ensure that the pressure pipe is installed acoustically isolated, maintain a
distance of 40–60mm between end discharge pipeline and the end of the
flange connector!
- If the distance is too small, the discharge pipe or the flange connector must
be shortened.
- If the distance is too large, the hose section supplied cannot be used. A suit-
able connecting sleeve must be provided by the customer!
5. Push the pipe clamps over the flange connector.

Installation and electrical connection en
Installation and operating instructions DrainLift S 17
6. Align the flexible connecting hose centrally between the flange connector and the
discharge pipe.
7. Attach the connecting hose on each flange connector and the pressure pipe with
the two pipe clamps. Max. tightening torque: 5Nm!
▶ Pressure pipe connected. Next step: Connect the inlet.
6.4.7 Connecting the 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 to a toilet:
▪Stand-alone toilets: Positive suction head 180mm
▪Wall-mounted toilet: Positive suction head 250mm
45
290
45
60
45290
4560
45 45
45
80
Fig.4: Free inlets
Observe the following information when connecting the inlet pipe:
▪The inlet must be within the marked areas. If the inlet is outside the marked areas, the
following problems can occur:
– Connection on the collection reservoir will leak.
– Backflow into the connected inlet pipe.
▪Avoid an inlet surge and air intake in the collection reservoir. Route the inlet properly.
CAUTION!Inlet surges or air intake in the collection reservoir can cause malfunc-
tions of the lifting unit!
▪The minimum connection height is 180mm.
NOTICE!An inlet at less than this height can lead to backflow in the inlet pipe!
▪Ensure all connections are completely tight!
▪Install gate valve in the inlet!
10...20 mm
111
1
1
3
2
3
3
44
4
5
5
1234
Fig.5: Connecting the inlet
1 Reservoir wall
2 Hole saw for drill
3 Inlet seal
4 Inlet pipe
5 Pipe clamp
‡Inlet pipe installed properly to collection reservoir and according to consulting doc-
uments.
‡Installation materials available:
1x hole saw
1x drill

en Installation and electrical connection
18 WILO SE 2017-06
1x inlet seal
1x pipe clamp
1. Mark the inlet point on the collection reservoir.
2. Use the supplied hole saw to cut the hole for the inlet into the reservoir wall.
When cutting holes on the collection reservoir, observe the following points:
- Observe the dimensions of the inlet surfaces.
- Max. speed of the drill: 200rpm.
- Check the hole diameter: DN100 = 124mm. NOTICE!Drill the connection care-
fully. Impermeability of the connection depends on the hole diameter!
- 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.
3. Deburr and smooth the cut surface.
4. Insert the inlet seal into the hole.
5. Push the pipe clamp onto the inlet seal.
6. Coat the inner surface of the inlet seal with lubricant.
7. Push the inlet pipe into the inlet seal.
Push the inlet pipe 10...20mm into the collection reservoir.
8. Connect the inlet seal and pipe firmly to the pipe clamp. Max. tightening torque:
5Nm.
▶ Inlet connected. Next step: Connect the vent.
6.4.8 Connecting the vent Connection of a ventilation line is a specified requirement and essential for correct
function of the lifting unit. Observe the following points when connecting the ventila-
tion line:
▪Guide the ventilation line over the roof.
▪Ensure all connections are completely tight.
‡Ventilation line is properly installed.
‡Installation materials available:
1x pipe clamp
1. Open the connection port: Pull the strip on the Konfix connector and open the
connection port.
2. Put the pipe clamp on the connection port.
3. Attach the ventilation pipe to the connection port.
4. Secure the ventilation pipe on the connection port with the pipe clamp. Max.
tightening torque: 5Nm.
▶ Lifting unit is installed. If required, further drainage fixtures or a diaphragm hand
pump can be connected to the additional connection port.
6.4.9 Connecting additional inlets In general, all drainage fixtures are connected centrally to the lifting unit via an inlet
pipe. However, because this is not always possible, the lifting unit has two additional
connections:
min.
180 mm
1:50
Fig.6: Inlet connection with seal
▪DN40 connection on the front longitudinal side
For fixed connection of a diaphragm hand pump. NOTICE!When drainage fixtures are
connected on the longitudinal side, it is possible that drainage problems will arise
for physical reasons. Install inlet with a pipe loop! The inlet height of the pipe loop
must be 180mm!
▪DN40 connection next to the ventilation connection piece
To connect additional drainage fixtures.
When using additional connections, observe the following points:
▪Connect the inlet pipe only at the connection port.
▪Avoid an inlet surge and air intake in the collection reservoir. Route the inlet properly.
CAUTION!Inlet surges or air intake in the collection reservoir can cause malfunc-
tions of the lifting unit!
▪Ensure all connections are completely tight!
▪Install gate valve in the inlet!

Installation and electrical connection en
Installation and operating instructions DrainLift S 19
1
2
3
4
5
5
1
15 mm
12
Fig.7: DN40 connection
1 Inlet connecting piece
2 Hole saw
3 Inlet pipe
4 Hose section
5 Pipe clamp
‡Inlet pipe installed properly to collection reservoir and according to consulting doc-
uments.
‡Installation materials available:
1x hole saw (size suitable for connection port)
1x hose section
2x pipe clamps
1. Open the connection port with the hole saw.
Alternatively, the connection port can also be opened using a hand saw. Using the
hand saw, saw off the seal above the lip.
2. Deburr and smooth the opening.
3. Push the hose section over the connection port and secure it with a pipe clamp.
Max. tightening torque: 5Nm!
4. Place the second pipe clamp over the inlet pipe.
5. Place the inlet in the hose section.
6. Pull the pipe clamp over the hose section and secure the inlet to the hose section.
Max. tightening torque: 5Nm!
▶ Additional inlet installed.
6.5 Optional: Installation of a dia-
phragm hand pump If the lifting unit fails, the accumulated sewage is collected for a period of time depend-
ing on the inflow quantity. In order to avoid bursting of the collection reservoir and ma-
jor damage to the lifting unit, the collected sewage must be regularly pumped into the
pressure pipe. For this purpose, it is recommended to install a diaphragm hand pump
between the lifting unit and the pressure pipe.
Fig.8: Optional: Diaphragm hand pump
When installing the diaphragm hand pump, the following points must be observed:
▪Select an installation height which is optimal for operation.
▪Connect the inlet to a connection port at the end of the lifting unit (lowest point for
complete draining).
▪Connect the pressure pipe after the gate valve on the pressure side.
Alternatively, the connection can be made via a pipe loop directly on the sewer.
▪Ensure all connections are completely tight!
▪Observe the installation and operating instructions for the diaphragm hand pump!
6.6 Electrical connection
DANGER
Risk of death due to electrocution!
Improper conduct when carrying out electrical work can lead to death due to electric
shock! Electrical work must be carried out by a qualified electrician in accordance
with the locally applicable regulations.
▪The mains connection must match the specifications on the rating plate.
▪Power supply on mains side for three-phase current motors with clockwise rotating
field.
▪Lay the power supply cables in accordance with the locally applicable regulations.
▪Earth the device properly in accordance with the locally applicable regulations.
The cross-section of the cable for the protective earth conductor connection must
comply with local regulations.

en Commissioning
20 WILO SE 2017-06
▪Attached switchgear is to be arranged overflow-proof.
6.6.1 Fuse on mains side Circuit breaker
The size of the circuit breakers conforms to the rated current of the pump. The switch-
ing characteristics should comply with group B or C. Observe local regulations.
Residual-current device (RCD)
Comply with the regulations of the local energy supply company! The use of a residual-
current device is recommended.
If persons come into contact with the device and conductive fluids, secure the connec-
tion with a residual-current device (RCD).
6.6.2 Mains connection The attached switchgear of the lifting unit is equipped with a shock-proof or CEE plug.
For connection to the power supply, a shock-proof socket (according to local regula-
tions) or a CEE socket must be provided on-site (according to local regulations).
6.6.3 Attached switchgear The switchgear is pre-wired and factory set for use on the lifting unit. The switchgear
has the following functions:
▪Level-dependent control
The switching points of the level control have permanent settings and cannot be adjus-
ted.
▪Motor protection
▪Rotation direction monitoring (only for the three-phase current version)
▪High water alarm
The switching level for the alarm signal is about 220mm (above the installation surface
upper edge).
The connections of the power supply cable to the switchgear are shown in the circuit
diagram in the appendix of these installation and operating instructions. For further
information on the individual functions, observe the installation and operating instruc-
tions for the switchgear.
6.6.4 Operation with frequency con-
verter Operation on the frequency converter is not permitted.
7 Commissioning
WARNING
Foot injuries due to lack of protective equipment!
Danger of (serious) injuries during work. Wear safety shoes!
7.1 Personnel qualifications ▪Electrical work: Electrical work must be carried out by a qualified electrician (in accord-
ance with EN50110-1).
▪Operation/control: Operating personnel must be instructed in the functioning of the
complete system.
7.2 Operator responsibilities ▪Providing installation and operating instructions by the lifting unit or at a place specially
reserved for it.
▪Making the installation and operating instructions available in the language of the per-
sonnel.
▪Making sure that the installation and operating instructions are read and understood by
all personnel.
▪All safety devices and emergency cut-outs must be active and checked to ensure that
they function properly.
▪The lifting unit is suitable for use under the specified operating conditions.
7.3 Operation
CAUTION
Malfunction due to incorrect operation of the switchgear!
When the plug is inserted, the switchgear starts in the last operating mode that was
set. In order to be familiar with the operation of the switchgear, the installation and
operating instructions of the switchgear must be read before inserting the plug.