Wilo DrainLift WS 40/50 Basic User manual

Pioneering for You
·
Wilo-DrainLift WS 40/50 Basic
6087354 • Ed.2023-07/06
en Installation and operating instructions

DrainLift WS 40/50 Basic
https://qr.wilo.com/759
Rexa MINI3
https://qr.wilo.com/405
Rexa UNI
http://qr.wilo.com/796

en
Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06 3
Table of contents
1 General information...................................................................4
1.1 About these instructions ..................................................... 4
1.2 Copyright ............................................................................... 4
1.3 Subject to change................................................................. 4
1.4 Exclusion from warranty and liability.................................4
2 Safety...........................................................................................4
2.1 Identification of safety instructions................................... 4
2.2 Personnel qualifications....................................................... 6
2.3 Electrical work .......................................................................6
2.4 Monitoring devices ............................................................... 7
2.5 Explosive atmosphere in the collection reservoir ............ 7
2.6 Transport................................................................................ 7
2.7 Use of lifting equipment......................................................7
2.8 Installing/dismantling........................................................... 8
2.9 During operation ................................................................... 8
2.10 Maintenance tasks................................................................ 8
2.11 Operator responsibilities...................................................... 9
3 Application/use...........................................................................9
3.1 Intended use.......................................................................... 9
3.2 Improper use........................................................................10
4 Product description..................................................................10
4.1 Construction........................................................................10
4.2 Technical data .....................................................................12
4.3 Pump chamber extension ..................................................12
4.4 Mode of operation ..............................................................12
4.5 Materials...............................................................................13
4.6 Type key...............................................................................13
4.7 Scope of delivery.................................................................13
4.8 Accessories ..........................................................................14
5 Transportation and storage.....................................................14
5.1 Delivery.................................................................................14
5.2 Transport..............................................................................14
5.3 Transport with lifting accessories ....................................14
5.4 Storage .................................................................................14
6 Installation and electrical connection....................................15
6.1 Personnel qualifications.....................................................15
6.2 Installation types.................................................................15
6.3 Operator responsibilities....................................................15
6.4 Installation – building installation (above ground)........16
6.5 Installation – ground installation (under ground)..........25
6.6 Electrical connection..........................................................30
7 Commissioning .........................................................................30
7.1 Personnel qualifications.....................................................30
7.2 Operator responsibilities....................................................30
7.3 Operation .............................................................................30
7.4 Test run ................................................................................31
7.5 Operation .............................................................................31
7.6 During operation .................................................................32
8 Shut-down/dismantling...........................................................32
8.1 Personnel qualifications.....................................................32
8.2 Operator responsibilities....................................................32
8.3 Shut-down............................................................................32
8.4 Clean and disinfect ..............................................................32
8.5 Pump removal.......................................................................33
9 Maintenance and repair............................................................34
10 Spare parts.................................................................................34
11 Faults, causes and remedies ....................................................34
12 Disposal......................................................................................34
12.1 Protective clothing ..............................................................34
12.2 Information on the collection of used electrical and elec-
tronic products .....................................................................34

en
4 Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06
1 General information
1.1 About these instructions These instructions form part of the product. Compliance with the instructions is essential
for correct handling and use:
•Read the instructions carefully before all activities.
•Keep the instructions in an accessible place at all times.
•Observe all product specifications.
•Observe the markings on the product.
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 WILO SE © 2023
Reproduction, distribution and utilisation of this document in addition to communication of
its contents to others without express authorisation is prohibited. Offenders will be held li-
able for payment of damages. All rights reserved.
1.3 Subject to change Wilo shall reserve the right to change the listed data without notice and shall not be liable
for technical inaccuracies and/or omissions. The illustrations used may differ from the ori-
ginal and are intended as an exemplary representation of the product.
1.4 Exclusion from warranty and liabil-
ity
Wilo shall specifically not assume any warranty or liability in the following cases:
•Inadequate configuration due to inadequate or incorrect instructions by the operator or
the client
•Non-compliance with these instructions
•Improper use
•Incorrect storage or transport
•Incorrect installation or dismantling
•Insufficient maintenance
•Unauthorised repairs
•Inadequate construction site
•Chemical, electrical or electrochemical influences
•Wear
2 Safety This section contains basic information about the individual
stages in the life cycle of the pump. Failure to observe this in-
formation leads to:
•Danger to persons
•Danger to the environment
•Property damage
•Loss of claims for damages
2.1 Identification of safety
instructions
These installation and operating instructions set out safety in-
structions for preventing personal injury and damage to property.
These safety instructions are shown differently:
•Safety instructions relating to personal injury start with a signal
word, are preceded by a corresponding symbol and are shaded
in grey.
DANGER
Type and source of the danger!
Consequences of the danger and instructions for avoidance.
•Safety instructions relating to property damage start with a
signal word and are displayed without a symbol.

en
Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06 5
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.
•NOTICE!
Useful information on handling the product
Symbols
These instructions use the following symbols:
Danger caused by electric voltages
Danger of explosion
Personal protective equipment: wear a safety helmet
Personal protective equipment: wear safety footwear
Personal protective equipment: Wear protective
gloves
Personal protective equipment: Wear safety glasses
Personal protective equipment: Wear face mask
General command symbol – follow instructions
Useful information
Markups
✓Prerequisite
1. Work step/list
⇒Notice/instructions
▶Result

en
6 Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06
Identifying cross references
The name of the section or table is in inverted commas [“ ”]. The
page number follows in square brackets [].
2.2 Personnel qualifications •Personnel have been instructed on locally applicable regula-
tions governing accident prevention.
•Personnel have read and understood the installation and oper-
ating instructions.
•Installation/dismantling work: trained specialist in plant tech-
nology for sanitary facilities
Fixation and buoyancy safeguards, connection of plastic pipes
•Ground installation (underground): trained specialist in under-
ground and pipeline construction
Excavate and prepare the pit, backfill the pit, buoyancy safe-
guards, connection of plastic pipes.
•Electrical work: qualified electrician
Person with appropriate technical training, knowledge and ex-
perience who can identify and prevent electrical hazards.
•Maintenance work: skilled person (trained specialist in plant
technology for sanitary facilities)
Hazards caused by sewage, basic knowledge of lifting units, re-
quirements of EN12056
•Lifting work: trained specialist for the operation of lifting
devices
Lifting equipment, lifting gear, attachment points
Children and persons with limited abilities
•Persons under the age of 16: Use of this product is prohibited.
•Persons under the age of 18: Supervise them during use of the
product (supervisor)!
•Persons with limited physical, sensory or mental capacities: Use
of this product is prohibited!
2.3 Electrical work •Electrical work must be carried out by a qualified electrician.
•Disconnect device from the mains and secure it against being
switched on again without authorisation.
•Observe applicable local regulations when connecting to the
mains power supply.
•Comply with the requirements of the local energy supply com-
pany.
•Train personnel on how to make electrical connections.
•Train personnel on the options for switching off the device.
•Observe the technical information in these installation and op-
erating instructions as well as on the rating plate.
•Earth the device.
•Arrange switchgears so as to be overflow-proof.
•Replace defective connection cables. Contact customer service.

en
Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06 7
2.4 Monitoring devices The following monitoring devices must be provided on-site:
Circuit breaker
•Design the power and switching characteristics of the circuit
breakers according to the rated current of the connected
product.
•Observe local regulations.
Residual-current device (RCD)
•Install a residual-current device (RCD) in accordance with the
regulations of the local energy supply company.
•If people can come into contact with the device and conductive
fluids, install a residual-current device (RCD).
2.5 Explosive atmosphere in
the collection reservoir
Sewage containing faeces can lead to gas accumulations in the
tank. These gas accumulations can escape into the operating
space and create an explosive atmosphere as a result of incorrect
installation or maintenance work. This atmosphere can ignite and
lead to an explosion. In order to prevent an explosive atmosphere,
observe the following points:
•Tank must be undamaged (no cracks, leaks, porous material)!
Take any defective lifting units out of operation.
•Connect all connections for inlet, discharge line and venting
line in accordance with regulations and tightly!
•Guide the venting line over the roof.
•When opening the tank (e.g. during maintenance work), ensure
appropriate exchange of air!
2.6 Transport •Locally applicable laws and regulations on work safety and ac-
cident prevention must be complied with.
•Demarcate and cordon off the working area.
•Keep unauthorised persons away from the working area.
•Transport the pump chamber on a pallet.
•Set down the pump chamber vertically.
To avoid damage to the pipework and pipe adaptors, keep the
pump chamber vertical during transport.
•Secure the pump chamber against slipping and falling over.
When lashing, make sure that the plastic parts do not deform.
•Remove loose components from the product.
2.7 Use of lifting equipment If lifting equipment (lifting device, crane, chain hoist…) is used,
observe the following points:
•Wear a safety helmet according to EN397!
•Comply with local regulations on the use of lifting equipment.
•The technically correct use of the lifting equipment is the oper-
ator’s responsibility!
•Lifting gear
–Use legally specified and approved lifting gear.

en
8 Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06
–Select lifting gear based on the attachment point.
–Attach lifting gear to the attachment point according to local
regulations.
•Lifting equipment
–Check it functions properly before use!
–Sufficient bearing capacity.
–Ensure stability during use.
•Lifting operation
–Do not jam the product when lifting and lowering it.
–Do not exceed the max. permissible bearing capacity!
–If necessary (e.g. blocked view), assign a second person to
coordinate.
–No one should stand under suspended loads!
–Do not move loads over workplaces where persons are
present!
2.8 Installing/dismantling •Locally applicable laws and regulations on work safety and ac-
cident prevention must be complied with.
•Disconnect device from the mains and secure it against being
switched on again without authorisation.
•Close the inlet and pressure pipe.
•Ensure enclosed spaces have sufficient ventilation.
•When working in enclosed spaces, a second person must be
present for safety reasons.
•Toxic or asphyxiating gases may build up in enclosed spaces or
buildings. Observe protective measures in accordance with
work regulations, e.g. carry a gas detector with you.
•Clean the device thoroughly.
WARNING!Risk of fire if inappropriate clothing is worn and
highly flammable cleaning agents are used!
Static charging may occur when cleaning plastic parts. There is
a risk of fire! Only wear anti-static clothing and do not use
highly flammable cleaning agents.
2.9 During operation •Open all gate valves in the inlet and pressure pipe!
•The maximum intake must be lower than the maximum output
of the system.
•Do not open the inspection openings!
•Ensure chamber ventilation!
2.10 Maintenance tasks •Close the inlet and pressure pipe.
•Only carry out maintenance tasks described in these installation
and operating instructions.
•Only original parts of the manufacturer may be used. The use of
any non-original parts releases the manufacturer from any liab-
ility.

en
Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06 9
•Collect any leakage of fluid and operating fluid immediately and
dispose of it according to the locally applicable guidelines.
Installed pumps and accessories
•Disconnect devices from the mains supply and secure against
being switched on again without authorisation.
•Carry out maintenance work according to the instructions of
the products.
2.11 Operator responsibilities •Provide installation and operating instructions in a language
which the personnel can understand.
•Make sure that the personnel have received the required train-
ing for the specified work.
•Provide protective equipment. Ensure that the protective
equipment is worn by personnel.
•Ensure that safety and information signs mounted on the
device are always legible.
•Train the personnel on how the system operates.
•Demarcate and cordon off the working area.
3 Application/use
3.1 Intended use
CAUTION
Overpressure in the tank can cause the tank to burst!
Observe the following points to prevent overpressure in the tank:
• The maximum positive suction head of the lowest inlet is 5m
(16.5ft).
• The maximum inlet volume is smaller than the maximum volume flow
at the duty point!
Application
•As a lifting unit within buildings (above ground installation).
•As a pump chamber outside buildings (concealed floor installation).
•For backflow resistant drainage of
–Drainage points below the backflow level
–Drainage points that cannot be drained via the natural downward slope.
Fluid
For collection and pumping of the following in commercial areas:
•Sewage, with or without faeces
NOTICE!Install grease traps upstream of the pump chamber if pumping greasy sewage!
Sewage pumping according to 12050
•EN12050-1:
–DrainLift WS 50E/D Basic with Rexa MINI3...
–DrainLift WS 50E/D Basic with Rexa UNI...
•EN12050-2:
–DrainLift WS 40E/D Basic with Rexa MINI3...

en
10 Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06
3.2 Improper use
DANGER
Explosion due to use of explosive fluids!
If highly flammable and explosive fluids (gasoline, kerosene, etc.) are in-
troduced, there is a danger of death due to explosion! The lifting unit is
not designed for these fluids.
• Do not introduce highly flammable and explosive fluids!
Do not use the following fluids:
•Sewage from drainage objects that are located above the backflow level and can be
drained by natural fall.
•Debris, ash, rubbish, glass, sand, plaster, cement, lime, mortar, fibrous materials, textiles,
paper towels, wet-wipes (e.g. fleece cloths, moist toilet paper wipes), nappies, card-
board, 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 fluids, such as heavy metals, biocides, pesticides, acids,
bases, salts, swimming-pool water
•Cleaning agents, disinfectants, dishwashing or laundry detergents in excess amounts,
and such that have a disproportionately high degree of foam formation
•Drinking water
Intended use also includes compliance with this manual. Any other use is regarded as non-
compliant with intended use.
4 Product description
4.1 Construction Plastic chamber as single or twin-head pump system. Suitable for ground installation or
building installation.
1
2
2
3
4
5
6
Fig.1: Structure
1 Chamber cover
2 Pressure pipe connection
3 Pump chamber
4 Drain pipe/diaphragm hand pump connection
5 Venting line connection
6 Cable pipe connection
4.1.1 DrainLiftWS40EBasic (1~230V) Chamber
Pump chamber with optimised geometry for deposit-free operation. Chamber component
with finning for high inherent stability and anti-buoyancy. The inlets are freely configur-
able. Two lifting eyes are integrated for attaching the lifting accessory. The upward curved
pump chamber cover can be walked on and can be loaded with max. 200kg. For the build-
ing installation, the pump chamber is equipped with a floor fixation.
Pipework
•Discharge pipe with threaded connection on the pump side
•Shut-off ball valve
•Non-return ball valve
Pump
Submersible sewage pump for single-phase current. Surface-cooled motor with thermal
motor protection (self-switching) and plug.
Level control
The level is controlled via the float switch of the pump.

en
Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06 11
4.1.2 DrainLiftWS40EBasic (3~ 400V) Chamber
Pump chamber with optimised geometry for deposit-free operation. Chamber component
with finning for high inherent stability and anti-buoyancy. The inlets are freely configur-
able. Two lifting eyes are integrated for attaching the lifting accessory. The upward curved
pump chamber cover can be walked on and can be loaded with max. 200kg. For the build-
ing installation, the pump chamber is equipped with a floor fixation.
Pipework
•Discharge pipe with threaded connection on the pump side
•Shut-off ball valve
•Non-return ball valve
Pump
Submersible sewage pump for three-phase alternating current (three-phase current con-
nection). Surface-cooled motor with thermal motor protection and bare cable end.
Level control
The level is controlled via a separate float switch and a switchgear.
4.1.3 DrainLiftWS40DBasic (1~230V) Chamber
Pump chamber with optimised geometry for deposit-free operation. Chamber component
with finning for high inherent stability and anti-buoyancy. The inlets are freely configur-
able. Two lifting eyes are integrated for attaching the lifting accessory. The upward curved
pump chamber cover can be walked on and can be loaded with max. 200kg. For the build-
ing installation, the pump chamber is equipped with a floor fixation.
Pipework
•Discharge pipe with threaded connection on the pump side
•Shut-off ball valve
•Non-return ball valve
Pump
Submersible sewage pump for single-phase current. Surface-cooled motor with thermal
motor protection (self-switching) and plug.
Level control
The level is controlled via a level sensor and a switchgear.
4.1.4 DrainLiftWS40DBasic (3~400V) Chamber
Pump chamber with optimised geometry for deposit-free operation. Chamber component
with finning for high inherent stability and anti-buoyancy. The inlets are freely configur-
able. Two lifting eyes are integrated for attaching the lifting accessory. The upward curved
pump chamber cover can be walked on and can be loaded with max. 200kg. For the build-
ing installation, the pump chamber is equipped with a floor fixation.
Pipework
•Discharge pipe with threaded connection on the pump side
•Shut-off ball valve
•Non-return ball valve
Pump
Submersible sewage pump for three-phase alternating current (three-phase current con-
nection). Surface-cooled motor with thermal motor protection and bare cable end.
Level control
The level is controlled via a level sensor and a switchgear.
4.1.5 DrainLiftWS50EBasic Chamber
Pump chamber with optimised geometry for deposit-free operation. Chamber component
with finning for high inherent stability and anti-buoyancy. The inlets are freely configur-
able. Two lifting eyes are integrated for attaching the lifting accessory. The upward curved
pump chamber cover can be walked on and can be loaded with max. 200kg. For the build-
ing installation, the pump chamber is equipped with a floor fixation.
Pipework
•Discharge pipe with threaded connection on the pump side

en
12 Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06
•Shut-off ball valve
•Non-return ball valve
Pump
Submersible sewage pump for single-phase current. Surface-cooled motor with thermal
motor protection (self-switching) and plug.
Level control
The level is controlled via the float switch of the pump.
4.1.6 DrainLiftWS50DBasic Chamber
Pump chamber with optimised geometry for deposit-free operation. Chamber component
with finning for high inherent stability and anti-buoyancy. The inlets are freely configur-
able. Two lifting eyes are integrated for attaching the lifting accessory. The upward curved
pump chamber cover can be walked on and can be loaded with max. 200kg. For the build-
ing installation, the pump chamber is equipped with a floor fixation.
Pipework
•Discharge pipe with threaded connection on the pump side
•Shut-off ball valve
•Non-return ball valve
Pump
Submersible sewage pump for single-phase current. Surface-cooled motor with thermal
motor protection (self-switching) and plug.
Level control
The level is controlled via a level sensor and a switchgear.
4.2 Technical data •Vessel volume: 255l/67US.liq.gal. (WS...E)/400l/105US.liq.gal. (WS...D)
•Maximum pressure in the discharge line: 1.5bar (22psi)
•Pressure connection: G 2/50mm (WS 40), G 2½ /63mm (WS 50)
•Inlet connection: DN 100/150/200
•Ventilation connection: 75mm (3in)
•Cable pipe for ground installation: 63mm (2.5in)
•Threaded cable glands for building installation:
–WS40E.../WS50E...: 1x M25 + 2x M16
–WS40D.../WS50D...: 2x M25 + 2x M16
•Fluid temperature: 3 ... 40°C (37... 104°F)
•Max. ambient temperature: 3 ... 40°C (37... 104°F)
•Max. groundwater level: 500mm (20in)
4.3 Pump chamber extension DrainLift WS40E...
DrainLift WS50E...
DrainLift WS40D...
DrainLift WS50D...
Pump chamber extension height 300mm (12in) 300mm (12in)
Pump chamber total height 1342mm (53in) 1342mm (53in)
Max. vessel volume 325l (86US.liq.gal) 470l (124US.liq.gal)
Max. groundwater level 1000mm (39in) 500mm (20in)
4.4 Mode of operation DrainLift WS40EBasic (1~230V) and DrainLift WS50EBasic
The sewage produced is channelled into the pump chamber via the inlet, where it collects.
When the water level reaches the switch-on level, the pump is switched on. The collected
sewage is pumped into the on-site pressure pipe via the discharge pipe. When the switch-
off level is reached, the pump is immediately deactivated.
DrainLift WS40EBasic (3~400V)
The sewage produced is channelled into the pump chamber via the inlet, where it collects.
When the water level reaches the switch-on level, the pump is switched on. The collected
sewage is pumped into the on-site pressure pipe via the discharge pipe. When the switch-
off level is reached, the pump is deactivated after the set follow-up time.
DrainLift WS40DBasic and DrainLift WS50DBasic
The sewage produced is channelled into the pump chamber via the inlet, where it collects.
When the water level reaches the switch-on level, the pump is switched on. The collected

en
Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06 13
sewage is pumped into the on-site pressure pipe via the discharge pipe. When the switch-
off level is reached, the pump is deactivated after the set follow-up time. The twin-head
pump chambers also offer the following functions:
•During peak loads, both pumps are operated in parallel.
•Pump cycling is carried out after every pumping procedure.
•If one pump malfunctions, the other pump is automatically used.
4.5 Materials Chamber
•Pump chamber: PE
•Pipework: 1.4404 (AISI 316L)
•Stopcock: PVC
•Non-return valve: Grey cast iron
Pump
•Rexa MINI3
–Hydraulics housing: EN-GJL-200 (ASTM A48 Class 30)
–Impeller: PK-GF30
–Motor housing: 1.4301 (AISI 304)
–Seal on the pump side: C/MgSi
–Seal on the motor side: NBR
•Rexa UNI
–Hydraulics housing: PP-GF30
–Impeller: PP-GF30
–Motor housing: 1.4301 (AISI 304)
–Seal on the pump side: SiC/SiC
–Seal on the motor side: C/Cr
4.6 Type key Example: DrainLift WS 40E Basic/Rexa...
DrainLift Product family
WS Pump chamber
40 Size
EChamber design:
•E = Single-pump system
•D = Double-pump system
Basic Pump chamber with pump and level control
Rexa... Installed pump
4.7 Scope of delivery
DrainLift...
WS 40E Basic (1~230V) WS 40E Basic (3~ 400V) WS 40D Basic (1~230V) WS 40D Basic (3~400V) WS 50E Basic WS 50D Basic
Pump chamber with pipework, shut-off ball valve and non-return ball
valve
••••••
Chamber cover with gasket • • • • • •
Pump with float switch and plug • − − − • −
Pump with plug − − • − − •
Pump without float switch and plug − • − • − −
Switchgear with float switch and plug − • − − − −
Switchgear with level sensor and plug − − • • − •
Hose section 50mm (2in) for drain connection, incl. 2 hose clips • • • • • •
Inlet set with hole saw 124mm (5in)and gasket DN 100 • • • • • •
Fixation material • • • • • •
Installation and operating instructions • • • • • •

en
14 Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06
Key
• = Included in the scope of delivery, − = not included in the scope of delivery
4.8 Accessories •Pump chamber extension
•Clamp bolting
•Diaphragm hand pump
•Alarm switchgear
•Additionally for chambers with switchgear:
–Float switch to detect high water levels
–Horn
–Flash light
5 Transportation and storage
5.1 Delivery •After receiving the shipment, check it immediately for defects (damage, completeness).
•Defects must be noted on the freight documentation.
•Defects must be notified to the transport company or the manufacturer on the day of
receipt of shipment.
•Subsequently notified defects can no longer be asserted.
5.2 Transport
Fig.2: Slinging points
•Wear protective equipment! Observe the work regulations.
–Protective gloves: 4X42C (uvex C500 wet)
–Safety shoes: Protection class S1 (uvex 1 sport S1)
•Transport the pump chamber on a pallet.
•Set down the pump chamber vertically.
To avoid damage to the pipework and pipe adaptors, keep the pump chamber vertical
during transport.
•Secure the pump chamber against slipping and falling over.
When lashing, make sure that the plastic parts do not deform.
•Close any openings, ensuring they are sealed watertight.
•Remove loose accessories from the pump chamber and pack them separately.
NOTICE!Thoroughly clean used pump chambers before shipping and disinfect them!
5.3 Transport with lifting accessories If lifting accessories (lifting equipment, crane, chain hoist…) are used, observe the follow-
ing points:
•Wear a safety helmet according to EN397!
•Comply with local regulations on the use of lifting equipment.
•The technically correct use of the lifting accessory is the operator’s responsibility!
•Lifting slings
–Use legally specified and approved lifting slings.
–Select lifting slings based on the slinging point.
–Attach lifting slings to the slinging point according to local regulations.
•Lifting accessories
–Check it functions properly before use!
–Sufficient bearing capacity.
–Ensure stability during use.
•Lifting operation
–Do not jam the product when lifting and lowering it.
–Do not exceed the max. permissible bearing capacity!
–If necessary (e.g. blocked view), assign a second person to coordinate.
–No one should stand under suspended loads!
–Do not move loads over workplaces where persons are present!
5.4 Storage
DANGER
Danger of death from fluids hazardous to health!
Danger of bacterial infection!
• Disinfect the pump chamber after draining and before removal!
• Observe the specifications of the factory regulations!

en
Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06 15
•Drain the pump chamber completely.
•Place the pump chamber on a firm surface. Check the stability.
•Secure the pump chamber against falling over and slipping!
•Storage conditions:
–Maximum: -15 ... 60°C (5 ... 140°F), max. humidity: 90%, non-condensing.
–Recommended: 5 ... 25°C (41 ... 77°F), relative humidity: 40 ... 50%.
•Close all openings, ensuring they are sealed watertight.
•Do not store the pump chamber in spaces where welding work is carried out. The result-
ing gases or radiation can corrode the plastic parts.
•Protect the pump chamber from direct exposure to sunlight. Extreme heat can cause the
plastic parts to deform!
If pumps or signal transmitters are installed, please also observe the following points:
•Seal the ends of the connection cables against water ingress.
•Coil up connection cables and attach in the pump chamber.
•Observe information on the max. storage temperature of the pumps and signal trans-
mitters.
•Store the switchgear according to the manufacturer's instructions.
6 Installation and electrical con-
nection
6.1 Personnel qualifications •Installation/dismantling work: trained specialist in plant technology for sanitary facilities
Fixation and buoyancy safeguards, connection of plastic pipes
•Ground installation (underground): trained specialist in underground and pipeline con-
struction
Excavate and prepare the pit, backfill the pit, buoyancy safeguards, connection of plastic
pipes.
•Lifting work: trained specialist for the operation of lifting devices
Lifting equipment, lifting gear, attachment points
•Electrical work: qualified electrician
Person with appropriate technical training, knowledge and experience who can identify
and prevent electrical hazards.
•Personnel have been instructed on locally applicable regulations governing accident
prevention.
•Personnel have read and understood the installation and operating instructions.
6.2 Installation types •Installation (above ground) inside buildings
•Ground installation (below ground) outside buildings
6.3 Operator responsibilities •Observe locally applicable accident prevention and safety regulations.
•Observe all regulations for working with heavy loads and under suspended loads.
•Provide protective equipment. Ensure that the protective equipment is worn by person-
nel.
•Observe local sewage technology regulations for the operation of sewage systems.
•Structural components and foundations must be of sufficient stability in order to allow
the device to be fixed in a secure and functional manner. The operator is responsible for
the provision and suitability of the structural component/foundation!
•Demarcate the working area.
•Keep unauthorised persons away from the working area.
•Ensure free access to the installation location.
•Horizontal and flat installation surface!
•Carry out the installation work according to locally applicable regulations.
•If the weather conditions (e.g. ice formation, strong wind) mean it is no longer possible
to work safely, stop work.
•Check that the available consulting documents (installation plans, installation location,
inflow conditions) are complete and accurate.
•Lay and prepare the pipes according to the consulting documents.
•Mains connection is overflow-proof.

en
16 Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06
6.4 Installation – building installation
(above ground) DANGER
Danger due to fluids hazardous to health during installation!
Danger of bacterial infection!
• Clean and disinfect installation location.
• Wipe up drips immediately.
• Observe the specifications of the factory regulations!
• If contact with fluids that are hazardous to health is possible, wear the
following protective equipment:
– sealed safety glasses
– mouth protection
– safety gloves
DANGER
Risk of fatal injury due to dangerous lone working practices!
Work in chambers and narrow rooms as well as work involving risk of fall-
ing are dangerous work. Such work may not be carried out autonom-
ously!
• Only carry out work with another person!
NOTICE
Installation of the pump chamber inside buildings
Observe EN12056 and local regulations during installation!
•Wear protective equipment! Observe the work regulations.
–Protective gloves: 4X42C (uvex C500 wet)
–Safety shoes: Protection class S1 (uvex 1 sport S1)
•Prepare the installation site:
–Clean, free of coarse solids
–Dry
–Frost-free
–Well lit
•Ensure operating space has sufficient ventilation.
•If toxic or asphyxiating gases accumulate, leave the workplace immediately!
•Ensure a clearance area of min. 60cm (2ft) around the unit.
•In the event of an accident: Provide pump sump in the operating space, min. dimensions:
500x500x500mm (20x20x20in). Select pump accordingly. Ensure that manual drainage
is possible.
•All connection cables must be laid properly. The connection cables must not pose any
risk (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 at an adequate
height. Ensure good operation!
6.4.1 Note on fixation material The lifting unit can be installed on various constructions (concrete, steel construction etc.).
Select the fixation material which is suitable for the relevant construction. For correct in-
stallation, 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 con-
dition.
6.4.2 Note on pipework The pipework is subjected to different pressures during operation. Pressure peaks can also
occur (e.g. when closing the swing check valve) which may be several times higher than the
pump pressure, depending on the operating conditions. These different pressures put a

en
Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06 17
strain on the piping and the pipe adaptors. In order to ensure safe and faultless operation,
the piping and pipe adaptors must be checked based on the following parameters and de-
signed according to the requirements:
•On-site pipes are self-supporting.
No tensile or compressive forces may act on the lifting unit.
•Pressure resistance of pipework and pipe adaptors
•Tensile strength of the pipe adaptors (= longitudinal force fit connection)
•Connect the pipes free of stress and oscillations.
•Provide a gate valve in the inlet and the discharge line on-site!
6.4.3 Work steps The pump chamber is installed in the following steps:
•Preparatory tasks.
•Install the pump chamber.
•Connect the pressure pipe.
•Connect the inlet.
•Connect the vent.
•Connect the emergency drain.
•Check the pump is properly fitted.
•Install the level control device.
•Lay the connection cable.
•Fit the chamber cover.
6.4.4 Preparatory tasks •Unpack the pump chamber.
•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!
•Prepare the installation location:
–Horizontal and flat installation surface!
–Space for an additional clearance area of at least 60cm (2ft) provided!
–Fixation with dowels possible.
–Clean, free of coarse solids
–Dry
–Frost-free
–Well lit
•Keep accessories available for later use:
–Chamber cover
–Y-piece
The pump chambers WS40...D and WS50...D have separate pipework for each
pump. They therefore also have two discharge ports.
NOTICE!Y-piece to be provided on-site!
–Switchgear
–Level control

en
18 Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06
6.4.5 Install the pump chamber
1
2
3
Fig.3: Install the pump chamber
1 Mounting bracket (2 pieces)
2 Fixation for mounting bracket:
•4x M5x25 hexagon head screw
•4x M5 hexagon nut
•8x washers
3 Floor fixation:
•2x SXRL 10x80FUS long-shaft dowel
•2x 7mm hexagon head screw
Install pump chamber so as to protect against buoyancy and twisting. Anchor the lifting unit
to the floor for this.
✓Preparatory tasks have been completed.
✓Installation location prepared according to consulting documents.
✓Enclosed fixation material: Observe the information on the building ground! If necessary,
provide suitable fixation material for the floor fixation on-site.
✓SW8 and SW13 wrench
1. Place the pump chamber at the installation site and align it with the on-site pipework.
NOTICE!The pump chamber must be vertical!
2. Mount the mounting brackets on the chamber ribs (Item2).
3. Mark the boreholes.
4. Place the pump chamber to one side.
5. Drill and clean the boreholes.
6. Insert wall plugs (Item3)
7. Align the pump chamber with the boreholes.
8. Attach the pump chamber to the floor (Item3).
▶Pump chamber installed so as to protect against buoyancy and twisting.
▶Next step: Connect the pressure pipe.
6.4.6 Connecting the pressure pipe
Fig.4: Labelling on the pump chamber
DrainLift WS 40E/50E Basic DrainLift WS 40D/50D Basic
2
2
2
Fig.5: Discharge port
2 Discharge port
Observe the following information when connecting the pressure pipe:
•Flow rate in the pressure pipe: 0.7m/s (2.3ft/s) to 2.3m/s (7.5ft/s)!
•Reducing the pipe diameter is not permitted!
•All connections must be completely tight!
•Lay the pressure pipe so that it is protected from frost.
•Install the gate valve.
•Install the discharge line as a “pipe loop” to avoid backflow from the main public sewer.
At its highest point, the bottom edge of the pipe loop must be above the locally determ-
ined backflow level!

en
Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06 19
6.4.6.1 DrainLiftWS40E/WS40D Basic
12 3
Fig.6: WS40...Basic: Connecting the pres-
sure pipe
1 Pump chamber discharge outlet
2 Discharge line, on-site
3 Union nut and clamp ring
✓Pump chamber installed properly.
✓Pressure pipe installed correctly to the discharge port according to consulting docu-
ments.
✓Installation material DrainLift WS40D: Y-piece, to be provided on-site
1. Loosen the union nut, remove the clamp ring.
2. Push the union nut and clamp ring onto the discharge line provided on-site.
3. Plug the discharge line provided on-site into the discharge outlet.
4. Place the clamp ring and tighten the union nut.
▶Pressure pipe connected.
▶Next step: Connect the inlet.
6.4.6.2 DrainLift WS50E/WS50D Basic
12 34 5
Fig.7: WS 50...Basic: Connecting the pres-
sure pipe
1 Pump chamber discharge outlet
2 Discharge line, on-site
3 Clamp bolting, fixed part
4 Clamp bolting, clamp ring
5 Clamp bolting with female thread 2½"
✓Pump chamber installed properly.
✓Pressure pipe installed correctly to the discharge port according to consulting docu-
ments.
✓Installation material DrainLift WS50E: 1x clamp bolting or threaded fitting, to be
provided on-site.
✓Installation material DrainLift WS50D: 2x clamp bolting or threaded fittings and Y-piece,
to be provided on-site
1. Loosen the clamp ring, do not unscrew.
2. Screw the clamp bolting onto the discharge outlet.
3. Insert the discharge line into the clamp bolting as far as it will go.
4. Tighten the union nut and clamp ring firmly.
5. Tighten the clamp ring firmly.
▶Pressure pipe connected.
▶Next step: Connect the inlet.
6.4.7 Connect the inlet
Fig.8: Labelling on the pump chamber
The inlet can be in the areas indicated for the chamber wall, as desired.
min. 450
max. 620
min. 450
max. 620
Fig.9: Inlet areas

en
20 Installation and operating instructions • Wilo-DrainLift WS 40/50 Basic • Ed.2023-07/06
Note the following when connecting the inlet:
•Connect the inlet within the marked areas. If the inlet is outside the marked areas, the fol-
lowing problems can occur:
–The connection leaks.
–Statics of the pump chamber are affected.
–Backflow into the inlet pipe.
•Avoid an inlet surge and air intake into the pump chamber. Lay the inlet properly.
CAUTION!Inlet surges or air intake into the pump chamber can cause the level control
device to malfunction!
•Lay the inlet pipe with a slope to the pump chamber so that it can drain automatically.
•All connections must be completely tight!
•Install gate valve in the inlet!
50 mm
2 in
1
1
1
1
1
2
3
3
3
4
4
4
5
5
1234
Fig.10: Connecting the inlet
1 Tank wall
2 Hole saw for drill
3 Inlet seal
4 Inlet pipe
5 Pipe clamp
✓Pump chamber installed properly.
✓Inlet pipe installed properly up to the pump chamber and according to consulting docu-
ments.
✓Installation materials provided:
1x hole saw
1x drill
1x inlet seal
1x pipe clamp
1. Mark the inlet point on the pump chamber.
2. Use the supplied hole saw to cut the hole for the inlet into the pump chamber wall.
When drilling holes on the pump chamber, observe the following points:
- Observe the dimensions of the inlet surfaces. CAUTION!The drilled hole must be
completely within the marked inlet surfaces!
- Max. speed of the drill: 200rpm.
- Check the hole diameter: DN100 = 124mm (5in). NOTICE!Drill the connection care-
fully. Impermeability of the connection depends on the quality of the drilled hole!
- Make sure the excess material in the drill bit is removed completely! If the excess ma-
terial removal rate decreases, the material will heat up too quickly and melt.
⇒Stop the drilling process, allow the material to cool down 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 50mm (2in) into the pump chamber.