Wilo Vardo WEEDLESS-F User manual

Pioneering for You
·
Wilo-Vardo WEEDLESS-F
6074816 • Ed.01/2019-02
en Installation and operating instructions

en
Installation and operating instructions Wilo-Vardo WEEDLESS-F 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 Drive unit: Gear motor in mixer version ..........................................................................................................................................................8
2.6 Use in fluids hazardous to health ....................................................................................................................................................................8
2.7 Transport.............................................................................................................................................................................................................8
2.8 Installing/dismantling........................................................................................................................................................................................8
2.9 During operation ................................................................................................................................................................................................9
2.10 Maintenance tasks.............................................................................................................................................................................................9
2.11 Operating fluid ...................................................................................................................................................................................................9
2.12 Operator responsibilities...................................................................................................................................................................................9
3 Application/use....................................................................................................................................................................... 10
3.1 Intended use.................................................................................................................................................................................................... 10
3.2 Improper use.................................................................................................................................................................................................... 10
4 Product description................................................................................................................................................................ 10
4.1 Design............................................................................................................................................................................................................... 10
4.2 Operation in an explosive atmosphere ........................................................................................................................................................ 11
4.3 Type key........................................................................................................................................................................................................... 12
4.4 Rating plate...................................................................................................................................................................................................... 13
4.5 Scope of delivery............................................................................................................................................................................................. 13
5 Transportation and storage................................................................................................................................................... 13
5.1 Delivery............................................................................................................................................................................................................. 13
5.2 Transport.......................................................................................................................................................................................................... 14
5.3 Storage ............................................................................................................................................................................................................. 15
6 Installation and electrical connection .................................................................................................................................. 16
6.1 Personnel qualifications................................................................................................................................................................................. 16
6.2 Operator responsibilities................................................................................................................................................................................ 16
6.3 Installation ....................................................................................................................................................................................................... 16
6.4 Electrical connection...................................................................................................................................................................................... 21
6.5 Recommended monitoring devices.............................................................................................................................................................. 22
7 Commissioning........................................................................................................................................................................ 22
7.1 Personnel qualifications................................................................................................................................................................................. 22
7.2 Operator responsibilities................................................................................................................................................................................ 22
7.3 Operation in an explosive atmosphere ........................................................................................................................................................ 22
7.4 Direction of rotation....................................................................................................................................................................................... 23
7.5 Before activating............................................................................................................................................................................................. 23
7.6 Switch on and off............................................................................................................................................................................................ 24
7.7 During operation ............................................................................................................................................................................................. 24
8 Shut-down/dismantling......................................................................................................................................................... 25
8.1 Personnel qualifications................................................................................................................................................................................. 25
8.2 Operator responsibilities................................................................................................................................................................................ 25
8.3 Decommissioning............................................................................................................................................................................................ 25
8.4 Dismantling...................................................................................................................................................................................................... 25
8.5 Clean and disinfect ......................................................................................................................................................................................... 27
9 Maintenance and repair.......................................................................................................................................................... 28

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4 WILO GVA GmbH 2019-02
9.1 Personnel qualifications................................................................................................................................................................................. 28
9.2 Operator responsibilities................................................................................................................................................................................ 28
9.3 Operating fluid ................................................................................................................................................................................................ 28
9.4 Maintenance intervals.................................................................................................................................................................................... 28
9.5 Maintenance measures .................................................................................................................................................................................. 29
9.6 Repairs .............................................................................................................................................................................................................. 32
10 Faults, causes and remedies .................................................................................................................................................. 36
11 Spare parts............................................................................................................................................................................... 37
12 Disposal.................................................................................................................................................................................... 37
12.1 Oils and lubricants........................................................................................................................................................................................... 37
12.2 Protective clothing .........................................................................................................................................................................................37
12.3 Information on the collection of used electrical and electronic products.............................................................................................. 37
13 Appendix.................................................................................................................................................................................. 38
13.1 Shrink disc tightening torques...................................................................................................................................................................... 38
13.2 Ex rating ........................................................................................................................................................................................................... 38

General information en
Installation and operating instructions Wilo-Vardo WEEDLESS-F 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 requirement for intended use and cor-
rectly operating the product. All specifications 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. The contents, of whatever type, 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 product or
individual components. The illustrations used may differ from the original and are in-
tended as an example representation of the product.
1.4 Warranty The specifications in the current “General Terms and Conditions” apply with regard to
the warranty and the warranty period. Any deviations must be contractually agreed and
shall then be given priority.
Warranty claim
If the following points are satisfied, the manufacturer is obligated to rectify every qual-
itative or constructive flaw:
ƒThe defects are reported in writing to the manufacturer within the warranty period.
ƒApplication according to intended use.
ƒAll monitoring devices are connected and were tested before commissioning.
Exclusion of liability
An exclusion of liability excludes all liability for personal injury, material damage or fi-
nancial losses. This exclusion applies as soon as one of the following applies:
ƒInadequate configuration due to inadequate or incorrect instructions by the operator
or the client
ƒNon-compliance with installation and operating instructions
ƒImproper use
ƒIncorrect storage or transport
ƒIncorrect installation or dismantling
ƒInadequate maintenance
ƒUnauthorised repairs
ƒInadequate construction site
ƒChemical, electrical or electro-chemical influences
ƒWear
2 Safety This chapter contains basic information for the individual phases of the life cycle. Fail-
ure to observe this information carries the following risks:
ƒInjury to persons from electrical, mechanical and bacteriological factors as well as
electromagnetic fields
ƒEnvironmental damage from discharge of hazardous substances
ƒProperty damage
ƒFailure of important functions of the product
Failure to observe the information contained herein will result in the loss of claims for
damages.
The instructions and safety instructions in the other chapters must also be ob-
served!
2.1 Identification of safety instruc-
tions These installation and operating instructions set out safety instructions for preventing
personal injury and damage to property. These safety instructions are shown differ-
ently:
ƒSafety instructions relating to personal injury start with a signal word, are preceded
by a corresponding symbol and are shaded in grey.

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6 WILO GVA GmbH 2019-02
DANGER
Type and source of the danger!
Consequences of the danger and instructions for avoidance.
ƒSafety instructions relating to property damage start with a signal word and are dis-
played without a symbol.
CAUTION
Type and source of the danger!
Consequences or information.
Signal words
ƒDANGER!
Failure to observe the safety instructions will result in serious injuries or death!
ƒWARNING!
Failure to follow the instructions can lead to (serious) injuries!
ƒCAUTION!
Failure to follow the instructions can lead to property damage and a possible total
loss.
ƒNOTICE!
Useful information on handling the product
Markups
‡Prerequisite
1. Work step/list
⇒ Notice/instructions
▶ Result
Symbols
These instructions use the following symbols:
Danger – high voltage
Danger – risk of bacterial infection
Danger – explosive atmosphere
General warning symbol
Warning – risk of cutting injuries
Warning – hot surface
Warning – suspended loads
Personal protective equipment: wear a safety helmet
Personal protective equipment: wear foot protection

Safety en
Installation and operating instructions Wilo-Vardo WEEDLESS-F 7
Personal protective equipment: wear hand protection
Personal protective equipment: wear safety harness
Personal protective equipment: wear mouth protection
Personal protective equipment: wear safety goggles
Working alone is prohibited! A second person must be present.
Useful information
2.2 Personnel qualifications Personnel must:
ƒBe instructed about locally applicable regulations governing accident prevention.
ƒHave read and understood the installation and operating instructions.
Personnel must have the following qualifications.
ƒElectrical work: A qualified electrician must carry out the electrical work.
ƒInstallation/dismantling: The technician must be trained in the use of the necessary
tools and fixation materials for the relevant construction site.
ƒMaintenance tasks: The technician must be familiar with the use of operating fluids
and their disposal. In addition, the technician must have basic knowledge of mech-
anical engineering.
Definition of “qualified electrician”
A qualified electrician is a person with appropriate technical education, knowledge and
experience who can identify and prevent electrical hazards.
2.3 Electrical work ƒElectrical work must be carried out by a qualified electrician.
ƒBefore commencing work, disconnect the product from the mains and secure it
against being switched on again.
ƒObserve applicable local regulations when connecting to the mains power supply.
ƒComply with the requirements of the local energy supply company.
ƒEarth the product.
ƒTrain personnel in how to make the electrical connection as well as the methods for
switching off the device.
ƒMake the electrical connection in accordance with the manufacturer’s instructions.
ƒReplace defective connection cables immediately.
2.4 Monitoring devices The following monitoring devices must be provided by the customer:
Circuit breaker and motor protection switch
Install circuit breaker and motor protection switch in accordance with the manufac-
turer’s instructions. Observe local regulations.
In case of sensitive power supply systems, install further protective devices on-site
(e.g. overvoltage, undervoltage or phase failure relays, etc.).
Residual-current device (RCD)
Comply with the regulations of the local energy supply company! The use of a residual-
current device is recommended.
If persons come into contact with the device and conductive fluids, secure the connec-
tion with a residual-current device (RCD).

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2.5 Drive unit: Gear motor in mixer
version The drive unit is the mixer version of a gear motor. For all information, consult the man-
ufacturer’s instructions. Retain these instructions and store them with the product.
2.6 Use in fluids hazardous to health There is a danger of bacterial infection when using the device in fluids hazardous to
health! Thoroughly clean and disinfect the device after dismantling and prior to further
use. The operator must ensure the following:
ƒThe following protective equipment is provided and worn when cleaning the device:
–Closed safety goggles
–Breathing mask
–Protective gloves
ƒAll persons are informed about the fluid, the associated danger and its correct hand-
ling!
2.7 Transport ƒRisk of injury from impact or crushing. Wear the following protective equipment:
–Safety shoes
–Safety helmet
ƒComply with laws and regulations on work safety and accident prevention in force at
the site of installation.
ƒDemarcate the working area.
ƒKeep unauthorised persons away from the working area.
ƒUse the securing mechanisms provided.
ƒRemove loose components from the product.
ƒObserve packaging regulations:
–Impact-resistant
–Water-resistant
–Ensure the product is properly fixed in place.
–Protect product against dust, oil and moisture.
ƒUse only legally specified and approved hoisting and lifting gear.
ƒSelect the lifting gear based on the prevailing conditions (weather, attachment
point, load, etc.).
ƒAlways attach the lifting gear to the attachment points (lifting eyes) and ensure they
are securely attached.
ƒThe stability of the hoisting gear must be ensured during use.
ƒWhen using hoisting gear, a second person must be present to coordinate the pro-
cedure if required (e.g. if the operator’s field of vision is blocked).
ƒKeep away from the hoisting gear’s swivel range when hoisting the product.
ƒPersons must not stand underneath suspended loads. Do not move suspended loads
over workplaces where people are present.
2.8 Installing/dismantling ƒRisk of injury from:
–Slipping
–Tripping
–Impact
–Crushing
–Falling
Wear the following protective equipment:
–Safety shoes
–Safety gloves for protection against cuts
–Safety helmet
–Safety harness
ƒComply with laws and regulations on work safety and accident prevention in force at
the site of installation.
ƒDemarcate the working area.
ƒKeep the working area free of ice.
ƒKeep the working area free of any objects lying around.
ƒIf the weather conditions mean it is no longer possible to work safely, stop work.
ƒKeep unauthorised persons away from the working area.
ƒWork must always be carried out by two persons.
ƒAvoid any painful or tiring body postures.
ƒWhen working at a height of more than 1m (3ft) above the ground, use scaffolding
with a safety harness.
ƒCordon off the working area around the scaffolding.
ƒDisconnect the device from the mains and secure it against being switched on again
without authorisation.
ƒAll rotating parts must be at a standstill.

Safety en
Installation and operating instructions Wilo-Vardo WEEDLESS-F 9
ƒClean and disinfect the product thoroughly.
ƒMake sure that there is no risk of explosion when carrying out any work with elec-
trical devices.
ƒOnly use properly functioning hoisting gear.
ƒKeep away from the hoisting gear’s swivel range when hoisting the product.
ƒToxic or asphyxiating gases may build up when working in closed rooms or buildings.
Ensure there is sufficient ventilation and observe protective measures according to
work regulations (examples):
–Measure the gas concentration before entering.
–Carry a gas detector with you.
–etc.
2.9 During operation ƒThe work area in which the device is used is not a recreational area. No persons are
allowed in the work area during operation.
ƒWear protective equipment in accordance with the work regulations notice.
ƒThe operator must immediately report any faults or irregularities to their line man-
ager.
ƒIf hazardous defects occur, the operator must immediately deactivate the device.
Hazardous defects include:
–Malfunction of safety and monitoring devices
–Damage to housing parts
–Damage to electrical equipment
ƒThe propeller must not bump into fixtures or walls in the operating space. Observe
defined clearances to fixtures and basin walls in accordance with consulting docu-
ments.
ƒIf the water level fluctuates significantly, ensure the required water immersion using
level monitoring.
ƒUnder normal operating conditions, the sound-pressure level of the product is below
85dB(A). However, the actual sound-pressure level depends on several factors:
–Installation type
–Utilisation
–Immersion depth
2.10 Maintenance tasks ƒRisk of injury through crushing and hot operating fluid. Wear the following protect-
ive equipment:
–Sealed safety goggles
–Protective gloves
–Safety shoes
ƒOnly carry out the maintenance tasks described in these installation and operating
instructions.
ƒCarry out maintenance tasks in accordance with the manufacturer’s instructions.
ƒUse only original parts from the manufacturer for maintenance and repairs. Use of
parts other than original parts releases the manufacturer from any liability.
ƒDo not carry out maintenance on the product during operation. Disconnect the
device from the mains and secure it against being switched on again without au-
thorisation.
ƒCollect any drips of fluid and operating fluid immediately and dispose of them ac-
cording to locally applicable guidelines.
Changing gear oil in the drive unit
The oil change procedure uses compressed air. Observe the following points:
ƒAllow the gear to cool down before opening the gear oil chamber.
ƒOnly insert compressed air in the gear’s fill hole.
ƒTo avoid inhaling oil mist, limit the compressed air to 0.8bar (11.5psi).
2.11 Operating fluid The drive unit’s gear is filled with gear oil at the factory. Consult the manufacturer’s in-
structions for information on change intervals and disposal of operating fluid.
The interior of the hub is covered with water-resistant grease. Dispose of operating
fluid in accordance with local guidelines.
2.12 Operator responsibilities ƒProvide installation and operating instructions in a language which the personnel can
understand.
ƒMake sure that the personnel is relevantly trained for the specified work.
ƒProvide the necessary protective equipment and make sure that personnel wear it.
ƒSafety and information signs mounted on the device must always be legible.
ƒTrain the personnel on how the system operates.

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10 WILO GVA GmbH 2019-02
ƒEliminate risk from electrical current.
ƒDemarcate and cordon off the working area.
ƒTo ensure safe working practice, define personnel responsibilities.
ƒCarry out sound pressure measurement when the product is in normal operation. If
the measured sound pressure is more than 85dB(A), wear hearing protection and in-
clude such instruction in the work regulations!
3 Application/use
3.1 Intended use The mixers are suitable for both intermittent and continuous duty in drainage and
sewage (with and without faeces) as well as in sludge:
ƒFor suspension of solid matter
ƒFor homogenisation
Intended use also includes compliance with this manual. Any use other than the inten-
ded use is considered improper use.
3.2 Improper use
The mixers must not be used in:
ƒDrinking water
ƒNon-Newtonian fluids
ƒSeverely contaminated fluids containing hard components such as stone, wood,
metals, etc.
ƒHighly flammable and explosive fluids in pure form
4 Product description
4.1 Design The vertical mixer consists of the following main components:
1
2
3
4
5
Fig.1: Overview
1 Drive unit
2 Motor plate
3 Mixer shaft
4 Hub
5 Propeller blade

Product description en
Installation and operating instructions Wilo-Vardo WEEDLESS-F 11
4.1.1 Drive unit
1
6
3
2
4
5
Fig.2: Drive unit components
1 Motor
2 Oil drain line
3 Motor plate
4 Bearing lantern
5 Output shaft
6 Gear
The drive unit is composed of a motor with a mounted gear and a mixer lantern with an
additional bearing. It is fixed in place via the motor plate.
4.1.2 Hydraulics
1
2
35
4
Fig.3: Hydraulics components
1 Shrink disc
2 Mixer shaft
3 Propeller blade
4 Cover cap
5 Hub
The mixer shaft is connected to the output shaft by a shrink disc. The hub is mounted
on the other end of the mixer shaft. The hub is fixed in place with two tensioning kits.
The propeller blades are mounted on the hub. A union insert adjusts and fixes the set-
ting angle (30°, 35°, 40° or 45°) of the propeller blades. A cover cap is fitted to the hub
to protect the tensioning kits and the components fixing the propeller blades in place
against corrosion and dirt.
4.1.3 Material ƒMotor housing: EN-AC
ƒGear housing: EN-GJL-200 (ASTMA48 Class30)
ƒOutput shaft: Steel (C45)
ƒMotor plate:
–Steel, hot-galvanised
–Stainless steel A2 (AISI304/304L)
–Stainless steel A4 (AISI 316L/316Ti)
ƒMixer shaft:
–Steel, coated
–Stainless steel A2 (AISI304/304L)
–Stainless steel A4 (AISI316L/316Ti)
ƒRotary shaft seals: FKM
ƒHub: PUR/A4 (AISI316L/316Ti)
ƒPropeller blades: PUR
ƒCover cap: PUR
The motor housing, gear housing and steel mixer shaft are triple-coated for corrosion
protection.
4.2 Operation in an explosive atmo-
sphere Approval according to ATEX FM
Vardo WEEDLESS-F o −
Vardo WEEDLESS-S − −
Vardo WEEDLESS-M o −
Key: − = not available/possible, o = optional, • = as standard
For use in explosive atmospheres, the mixer and the drive unit must be marked as fol-
lows on the rating plate:

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12 WILO GVA GmbH 2019-02
ƒMixer
–“Ex” symbol of the corresponding approval
–Ex classification
ƒDrive unit
–“Ex” symbol of the corresponding approval
–Ex classification
–Certification number (depending on the approval)
If required by the approval, the certification number is printed on the rating plate.
Consult the explosion protection chapter in the appendix of these installation and
operating instructions for corresponding requirements!
ATEX approval
The mixers are suitable for operation in potentially explosive atmospheres:
ƒDevice group: II
ƒCategory: 2, zone 1 and zone 2
Mixers must not be used in zone0!
4.3 Type key Example: Wilo-Vardo WEEDLESS-F.5.A1.A.A-00.A-00
F Mixer version
- F = vertical mixer in fixed installation
- S = vertical mixer in floating installation
- M = vertical mixer with two propeller levels
5 Size
A1 Gear motor version depending on size for 3~400V, 50Hz
Size 5 6 7 8
A 0.37kW
9rpm
0.75kW
15rpm
4.00kW
39rpm
7.50kW
42rpm
B 0.55kW
12rpm
1.10kW
20rpm
4.00kW
34rpm
C 1.50kW
24rpm
5.50kW
39rpm
D 2.20kW
30rpm
E 3.00kW
35rpm
1 = Gear motor version 3~400V, 50Hz without Ex
2 = Gear motor version 3~400V, 50Hz with Ex
3 = Gear motor version 3~460V, 60Hz without Ex
4 = Gear motor version 3~460V, 60Hz with Ex
9 = Gear motor, special version
A Motor plate version
(MPC = normal, MPR = reinforced, MPT = triangular)
Without Ex
A = MPC-ST
B = MPC-A2
C = MPC-A4
D = MPR-ST
E = MPR-A2
F = MPR-A4
G = MPT-ST
H = MPT-A2
I = MPT-A4
With Ex
M = MPC-ST
N = MPC-A2
O = MPC-A4
P = MPR-ST
Q = MPR-A2
R = MPR-A4
S = MPT-ST
T = MPT-A2
U = MPT-A4
Z = Special version

Transportation and storage en
Installation and operating instructions Wilo-Vardo WEEDLESS-F 13
Example: Wilo-Vardo WEEDLESS-F.5.A1.A.A-00.A-00
A-00 Mixer shaft version
A = MSS-ST
B = MSS-A2 / MSM-A2
C = MSS-A4 / MSM-A4
Z = Special version
00 = Mixer shaft length in dm
A-00 Propeller unit version
(2/3 = number of propeller blades, 30°/35°/40°/45° = setting angle)
Upward direction of thrust
A = 2/40°
B = 3/40°
C = 2/35°
D = 3/35°
E = 2/45°
F = 3/45°
G = 2/30°
H = 3/30°
Downward direction of thrust
Q = 2/40°
R = 3/40°
S = 2/35°
T = 3/35°
U = 2/45°
V = 3/45°
W = 2/30°
X = 3/30°
00 = Propeller diameter in dm
4.4 Rating plate The following is an overview of the abbreviations and associated data on the rating
plate:
Vertical mixer
WEEDLESS-F.5.A1.A.A-20.A-25Typ
S/N xxxxxxxxx JJJJWww
MFY
P20,37 kW n29 1/min
MSØ60 mm MSL2000 mm
PBn 2 PBa 40°
DoT DoR 
M 90.00 kg PUØ2500 mm
WILO GVA GmbH
Dieselstraße 6
42489 Wülfrath Germany
Made in Germany
Fig.4: Rating plate
Type Product name
S/N Serial number
MFY Date of manufacture (according to ISO8601)
- JJJJ = year
- ww = calendar week
P2Required rated power of the mixer
n2Propeller speed
MSØDiameter of mixer shaft
MSLLength of mixer shaft
PBn Number of propeller blades
PBa Setting angle of propeller blades
DoT Direction of thrust
DoR Direction of rotation
MMass of the mixer without drive unit
CAUTION!For the total mass, the mass of the drive unit must also be ad-
ded. See rating plate!
PUØNominal diameter of the propeller
NOTICE!For technical data on the drive unit, consult the rating plate!
4.5 Scope of delivery Scope of delivery according to order confirmation and illustration.
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.

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14 WILO GVA GmbH 2019-02
5.2 Transport
WARNING
Standing under suspended loads!
Never allow anyone to stand under suspended loads! Danger of (serious) injuries
caused by falling parts. Loads may not be carried over work places where people are
present!
WARNING
Head and foot injuries due to a lack of protective equipment!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety shoes
• Safety helmet must be worn if lifting equipment are used!
NOTICE
Only use properly functioning hoisting and lifting gear!
Only use properly functioning hoisting gear to lift and lower the mixer. Screw the
lifting eyes needed for attachment to the motor plate. Ensure that the mixer is not
damaged during lifting and lowering. Do not exceed the maximum permissible bear-
ing capacity of the lifting equipment. Check that lifting equipment is functioning
properly before use!
CAUTION
Material damage due to incorrect transport.
The hub and propeller blades can be damaged when the mixer is lifted.
• When lifting the mixer, place foam padding (min. 20mm/1in thick) beneath the
hub.
•Never set the mixer down on the hub during transport.
ƒOnly remove the outer packaging at the site of use to ensure that the mixer is not
damaged during transport.
ƒOnly transport the mixer horizontally when on a pallet and using a forklift truck!
ƒOnly transport the mixer vertically using hoisting and lifting gear!
ƒUse tear-proof plastic sacks of sufficient size to package used mixers for transport
in a leak-proof manner.
ƒPackage the drive unit in a water-resistant manner. Moisture ingress will lead to
total failure! For further information, consult the manufacturer’s instructions.

Transportation and storage en
Installation and operating instructions Wilo-Vardo WEEDLESS-F 15
Attachment points
Fig.5: Motor plate attachment points
ƒComply with applicable national safety regulations.
ƒUse lifting eyes permitted for angular loading up to 90° (e.g. “Theipa Point TP”)
–Up to 3kW: M12 lifting eye
–4kW and over: M16 lifting eye
–Consult type key for motor power!
ƒAlways screw two lifting eyes into the motor plate for horizontal transport.
ƒUse legally specified and approved lifting gear.
ƒSelect the lifting gear based on the prevailing conditions (weather, attachment
point, load, etc.).
ƒOnly attach the lifting gear to the attachment point. Fix in place with a shackle.
ƒDo not stretch lifting gear over the drive unit. If necessary, use a load bar!
ƒUse lifting equipment with sufficient bearing capacity.
ƒThe stability of the hoisting gear must be ensured during use.
ƒWhen using hoisting gear, ensure a second person is present to coordinate the pro-
cedure if required (e.g. if the operator’s field of vision is blocked).
5.3 Storage
DANGER
Danger from fluids hazardous to health!
Risk of fatal injury if the mixer is used in fluids hazardous to health.
• Decontaminate the mixer after dismantling and before carrying out any other
work.
• Observe the specifications provided by work regulations. The operator must
make sure that personnel have received and read work regulations.
CAUTION
Total damage due to moisture ingress
The ingress of moisture into the drive unit will result in total damage! Ensure the
drive unit is sealed watertight during storage. Prevent condensation from forming!
The storage location must be overflow-proof. Observe information in the manufac-
turer’s instructions!
CAUTION
Material damage to the drive unit
If the product is stored in environments with high humidity (e.g.maritime or tropical
environments), severe rusting can damage the gear. In such environmental condi-
tions, simply moving the propeller on a regular basis is no longer sufficient. In such
cases, add an oil-soluble concentrate with anti-rust additives (concentration approx.
2%) to the gear oil. For further information, consult the manufacturer’s instructions!
Newly supplied mixers can be stored for 2years. Consult customer service before stor-
ing the mixer for more than 2years.

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16 WILO GVA GmbH 2019-02
The following must be observed as regards storage:
ƒPlace the mixer on a solid surface and secure it against slipping and falling over!
ƒThe max. storage temperature is -15°C to +60°C (5°F to 140°F) at a max. relative
humidity of 90%, non-condensing. Frost-proof storage at a temperature of 5°C to
25°C (41°F to 77°F) with relative humidity of 40% to 50% is recommended.
ƒDo not store the mixer in rooms in which welding work is carried out. The resulting
gases or radiation can corrode the elastomer parts and coatings.
ƒProtect the mixer from direct sunlight and heat. Extreme heat can cause damage to
the propeller and the coating!
ƒTurn the propeller for five full rotations at regular intervals (every 2–4weeks) when
in storage. Doing so presents the drive from jamming and renews the film of lubrica-
tion on the pinions.
ƒFor information on storing the drive unit, consult and observe the manufacturer’s in-
structions!
After storage, remove any dust and oil from the mixer and check the coatings for dam-
age. Repair damaged coatings before further use.
6 Installation and electrical con-
nection
6.1 Personnel qualifications ƒElectrical work: A qualified electrician must carry out the electrical work.
ƒInstallation/dismantling: The technician must be trained in the use of the necessary
tools and fixation materials for the relevant construction site.
6.2 Operator responsibilities ƒObserve the locally applicable accident prevention and safety regulations of trade
associations.
ƒObserve all regulations for working with heavy loads and under suspended loads.
ƒProvide protective equipment and ensure that the protective equipment is worn by
personnel.
ƒDemarcate the working area and keep it free from any objects lying around.
ƒUnauthorised persons must be kept away from the working area.
ƒIf the weather conditions (e.g. ice formation, strong wind) mean it is no longer pos-
sible to work safely, stop work.
ƒStructural components and foundations must be of sufficient stability in order to al-
low the device to be fixed in a secure and functional manner. The operator is re-
sponsible for the provision and suitability of the building/foundation!
ƒCheck that the available consulting documents (installation plans, design of the op-
erating space, inflow conditions) are complete and correct.
6.3 Installation
DANGER
Danger due to fluids hazardous to health during installation!
Ensure that the installation site is clean and disinfected during installation. If contact
with fluids that are hazardous to health is possible, observe the following points:
• Wear protective equipment:
⇒ Closed safety goggles
⇒ Mouth protection
⇒ Protective gloves
• Immediately wipe up drips.
• Observe the specifications provided by work regulations! The operator must
make sure that personnel have received and read work regulations!
DANGER
Risk of fatal injury due to dangerous lone working practices!
Work in chambers and narrow rooms as well as work involving risk of falling are dan-
gerous work. Such work may not be carried out autonomously! A second person
must be present for safety reasons.

Installation and electrical connection en
Installation and operating instructions Wilo-Vardo WEEDLESS-F 17
WARNING
A lack of protective equipment may result in hand and foot injuries or the
risk of falling!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety gloves for protection against cuts
• Safety shoes
• Safety harness
• Safety helmet must be worn if lifting equipment is used!
CAUTION
Material damage due to incorrect fixation
Defective fixation may limit the functionality of the mixer or damage it.
• If the mixer is fixed to a concrete structure, use anchor bolts for fixation. Follow the
manufacturer’s installation instructions! Temperature specifications and hardening
periods must be strictly observed.
• If the mixer is fixed to a steel structure, ensure that the structure is sufficiently
strong. Use fixation materials with sufficient strength!
Use suitable materials to avoid electrochemical corrosion!
• Tighten all screwed connections. Observe torque specifications.
NOTICE
Only use properly functioning hoisting and lifting gear!
Only use properly functioning hoisting gear to lift and lower the mixer. Screw the
lifting eyes needed for attachment to the motor plate. Ensure that the mixer is not
damaged during lifting and lowering. Do not exceed the maximum permissible bear-
ing capacity of the lifting equipment. Check that lifting equipment is functioning
properly before use!
ƒPrepare the operating space/installation site:
–Clean, free of coarse solids
–Dry
–Frost-free
–Decontaminated
ƒWork must always be carried out by two persons.
ƒAvoid any painful or tiring body postures.
ƒWhen working at a height of more than 1m (3ft) above the ground, use scaffolding
with a safety harness.
ƒCordon off the working area around the scaffolding.
ƒToxic or asphyxiating gases may build up when working in closed rooms. Ensure
there is sufficient ventilation and observe protective measures according to work
regulations (examples):
–Measure the gas concentration before entering.
–Carry a gas detector with you.
–etc.
ƒTake immediate countermeasures if there is a build-up of toxic or asphyxiating
gases.
ƒUse hoisting gear to lift, lower and transport the mixer.
ƒAttach the hoisting gear to the attachment point using a shackle. Only use lifting
gear which has been technically approved.
ƒKeep away from the hoisting gear’s swivel range when hoisting the product.
ƒOnly use hoisting gear if it can be safely attached. The storage place and the install-
ation site must be accessible with the hoisting gear. The set-down location must
have a firm surface.
ƒObserve minimum clearances with respect to walls and any fixtures.

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18 WILO GVA GmbH 2019-02
ƒThe laid connection cable must allow safe operation. Check whether the cable
cross-section and the cable length are sufficient for the selected installation type.
6.3.1 Installing the mixer
DANGER
Risk of explosion due to incorrect installation!
Ensure the connection made between the motor plate and support structure is gas-
tight. If gases can escape, there is a risk of explosion! This work must only be carried
out by customer service or approved qualified specialists!
CAUTION
Material damage due to excessive bending stresses!
If the mixer shaft is not installed perpendicularly, it may be subjected to high bend-
ing stresses. These bending stresses can damage the mixer shaft and the gear. To
ensure perpendicular installation of the mixer shaft, install the motor plate precisely
using equalisation sheets.
Affix the drive unit, with the mixer shaft and hub mounted, to a suitable support struc-
ture. Once the mixer has been installed, attach the propeller blades.
1
2
3
4
5
Fig.6: Installing the mixer
1 Drive unit
2 Motor plate
3 Mixer shaft
4 Support structure
5 Motor plate fixation
‡Attachment points installed on the motor plate.
‡Work area demarcated and free of any other objects or contaminants.
‡Ensure work is carried out by two persons.
1. Fasten the hoisting gear to the attachment points.
2. Slowly lift the mixer. CAUTION!Material damage! Place a soft surface under-
neath the mixer while lifting.
3. Position the mixer over the support structure.
4. Slowly lower the mixer. CAUTION!Material damage! Do not impact the support
structure heavily while lowering!
⇒ Make precise positioning adjustments by hand while lowering.
5. Lower the mixer until the motor plate rests completely on the support structure.
⇒ Check perpendicular alignment of the mixer shaft. If necessary, adjust the mo-
tor plate with equalisation sheets.
6. Affix the motor plate to the support structure. Tightening torque according to as-
sembly drawing!
7. Detach hoisting gear.
▶ Mixer is installed. Prepare and attach propeller blades.
6.3.2 Attaching the propeller blades
Adjusting the setting angle
The setting angle of the propeller blades can be adjusted to adapt the mixer to the re-
quirements of the respective system. The following union inserts are included in the
scope of delivery for this purpose:
ƒUnion insert for a setting angle of 30/45°
ƒUnion insert for a setting angle of 35/40°

Installation and electrical connection en
Installation and operating instructions Wilo-Vardo WEEDLESS-F 19
NOTICE
Different setting angles can cause malfunction
Attach all propeller blades with the same setting angle. Different angles may lead to
malfunctions.
1
2
3
30°
35°
40°
45°
Fig.7: Propeller blade setting angle
1 Hub
2 Mixer shaft
3 Propeller blade
The system-specific setting angle is marked on the rating plate.
NOTICE!Other setting angles may only be used following consultation with cus-
tomer service.
Defining the direction of thrust
The mixer can exert thrust either upwards or downwards in the operating space. To do
this, the direction of rotation and propeller blade direction must match. The following
graphic shows the propeller blade direction for each respective direction of rotation.
1 1
A B
2
2
33
Fig.8: Propeller blade direction
A Direction of thrust: upward
B Direction of thrust: downward
1 Mixer shaft
2 Union insert
3 Propeller blade
NOTICE!The system-specific direction of thrust (DoT) is marked on the rating plate!

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20 WILO GVA GmbH 2019-02
Attaching the propeller blades
2
1
3
4
4
2
3
5
1
6
Fig.9: Inserting the union insert
1 Flat gasket
2 Hub
3 Union insert
4 Propeller blade
5 Drilled hole for union insert
6 Threaded pin
7 Washer
8 Hexagon nut
9 Hexagon counter nut
‡The drive unit, with pre-assembled mixer shaft and hub, is firmly affixed to the
support structure.
‡Propeller blades and required union inserts are to hand.
‡Setting angle defined.
‡Direction of thrust defined.
‡Torque wrench with width across flats of 55 and 750Nm (553ft·lb) is to hand.
‡Ensure work is carried out by two persons.
1. Insert the union insert sideways into the drilled hole.
NOTICE!Observe the angle specification engraved on the union insert. The
angle specification must be visible when inserted.
NOTICE!Ensure the propeller blade alignment matches the direction of thrust!
2. Place flat gasket on threaded pin.
3. Insert propeller blade with threaded pin into the specified attachment on the hub,
and fix in place. NOTICE!The union insert must engage in the specified notch on
the hub.
2 4
7
6
8
9
3
4
Fig.10: Attaching the propeller blades
4. Slide the washer onto the threaded pin.
5. Screw the hexagon nut on the threaded pin until hand-tight.
6. Tighten the hexagon nut with the torque wrench. Tightening torque: 750Nm
(553ft·lb).
7. Screw the hexagon counter nut on the threaded pin until hand-tight.
8. Tighten the hexagon counter nut with the torque wrench. Tightening torque:
750Nm (553ft·lb).
9. Repeat these work steps for each propeller blade.
10.Check that all propeller blades are firmly fixed in place.
▶ Propeller blades are installed. Mount the cover cap.