WilTec 51545 User manual

Operation Manual

Multistage Centrifugal Pump

51545–51547

Illustration similar, may vary depending on model

Read and follow the operating instructions and safety information before using for the first time.

Technical changes reserved!

Due to further developments, illustrations, functioning steps and technical data can differ insignificantly.

Updating the documentation

If you have suggestions for improvement or have found any irregularities, please contact us.

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The information contained in this document may alter at any time without previous notice. It is prohibited

to copy or spread any parts of this document in any way without prior written allowance. All rights re-

served.

The WilTec Wildanger Technik GmbH cannot be held accountable for any possible mistakes in this

operating manual, nor in the diagrams and figures shown.

Even though, the WilTec Wildanger Technik GmbH has undergone biggest possible efforts to ensure

that the operating manual is complete, faultless and up to date, mistakes cannot be entirely avoided.

If you should find a mistake or wish to make a suggestion for improvement, we look forward to hearing

from you.

Send an e-mail to:

[email protected]

or use our contact form:

https://www.wiltec.de/contacts/

The most recent version of this manual in various languages can be found in our online shop via:

https://www.wiltec.de/docsearch

Our postal address is:

WilTec Wildanger Technik GmbH

Königsbenden 12

52249 Eschweiler

Germany

Do you wish to pick goods up? Our pick-up address is:

WilTec Wildanger Technik GmbH

Königsbenden 28

52249 Eschweiler

Germany

To shorten the waiting time and allow for a rapid on-site transaction, we ask you to call us previously or

placing your order via the webshop.

E-mail: service@wiltec.info

Tel:+49 2403 55592-0

Fax: +49 2403 55592-15

To return orders for exchange, repair or for other purposes, please use the following address. Attention!

To allow for a smooth execution of your complaint or return, it is important to contact our customer

service team before returning the goods.

Returns Department

WilTec Wildanger Technik GmbH

Königsbenden 28

52249 Eschweiler

E-mail: [email protected]o

Tel:+49 2403 55592-0

Fax: +49 2403 55592-15

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Introduction

Thank you for purchasing this quality product. To minimize the risk of injury we urge that our clients

take some basic safety precautions when using this device. Please read the operation instruc-

tions carefully and make sure you have understood its content.

Keep these operation instructions safe.

Safety instructions

The symbols and sentences containing the words “danger” or “warning” enumerate the

consequential risks of the safety instructions not being obeyed.

Symbol

Risk: Not obeying the safety instructions might lead to …

… an electric shock.

… serious harms to your health.

… damage of the pump.

General notes

•Make sure that the installation is correct so that the product may work best.

•All materials have been thoroughly inspected. Correct installation can protect the pump from

being damaged and overloaded. Not disobeying the instructions can lead to damages of the

pump.

Assembly

•The pump must not be immersed in water. Water is sucked in via a hose.

•Install the pump slightly higher than the bottom to prevent dirt from blocking the suction end

when the pump is used to pump very dirty water.

•Never suspend the pump by its electric cables or lines.

•Make sure that there is enough space for the float switch to function flawlessly.

Connecting the outlet tube

It is recommended to install a tube with a diameter larger than the one of the outlet in order to reduce

as much as possible friction losses. Install a non-return valve to the pump intake in order to prevent the

line from emptying whenever the pump is stopped. Avoid that during installation the lines twist or bend

and make sure that the connection at the outlet is correct. In both cases, the flow would be reduced at

the outlet if the connection is bad.

Electric connections

The single-phase motor has been equipped with a thermal protection. Protection of three-phased

should be provided by the user.

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Technical data

Item number

51545

51546

51547

Energy supply

220–240 V / 50 Hz

Power (W)

550

900

2,200

Cable length (m)

Noise level (dB (A))

Pressure (bar)

3.5

5.5

10.5

Rotation speed (giri⁄min)

2,900

2,850

Max. flow rate (ℓ⁄h)

6,000

7,200

9,000

Max. suction height (m)

Lifting height (m)

105

Max. temperature (℃)

of pumped liquid

of surroundings

Checks before commissioning

•Make sure that the voltage and frequency correspond to the values stated on the nameplate of

the motor.

•Make sure that the condenser matched the requirements of the pump (single-phase).

•Make sure that the suction via the hose is correct.

•Check the direction of rotation.

•Never let the pump run dry.

•Never change the position of the floating switch as set up by the manufacturer.

Maintenance

Our pumps do not need special maintenance; nevertheless we urge you to obey the following ad-

vice:

•During cold seasons and by low ambient temperature, empty the outlet line.

•If not used for a long time, the pump should be cleaned and stored in a dry place to avoid

corrosion.

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Technical drawing and parts list

№

Name

№

Name

№

Name

Impeller

Vent cover

Pump holder

Outlet

Holder

Mechanical seal

Clamping box

Rotor system

Intake housing

Vent

Wrapped stator

Pressure pin

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Troubleshooting

Problem

Cause

Solution

Motor does not start

a) Power failure

a) Check power supply.

b) Broken safety wire

b) Replace safety wire.

c) Motor overload

c) Check system.

d) Bad connection of starter or bad

assembly

d) Change starter.

e) Bad control circuit

e) Check control circuit.

f) Defective motor

f) Repair.

Device switches off

when the starter is over-

loaded.

a) Broken safety wire

a) Replace safety wire.

b) Overload device error

b) Check starter.

c) Loose cable connection, problem

with power supply

c) Check cable connection and power

supply.

d) Problem with winding

d) Replace motor.

e) Clogged mechanical parts

e) Repair pump.

Only carry out d) and e) after consultation.

The overload device is

suddenly activated.

a) Overload activation too low

a) Reset.

b) Regular power failure

b) Check power supply.

c) Low voltage during current peak.

c) Install voltage stabiliser.

The pump irregularly

discharges the water.

a) Too small inlet pipe

a) Increase inlet pipe.

b) Insufficient amount of water at the

inlet

b) Improve the system, try to increase

the water flow.

c) Too low liquid level

c) Try to increase liquid level.

d) Too low intake pressure compared

to water temperature, pipe bend, and

flow rate

d) Improve system to increase inlet

pressure.

e) Inlet pipe clogged by various com-

ponents

e) Check and clean.

With the pump running,

no water is discharged

a) Inlet pipe clogged by various com-

ponents

a) Check and clean.

b) Bottom or non-return valve closed

b) Check bottom and non-return

valve.

c) Inlet pipe leak

c) Check inlet pipe.

d) Air inside pump or inlet pipe

d) Re-fill liquid, remove air.

Pump runs backwards

with the power supply

switched off.

a) Inlet pipe leak

a) Check inlet pipe.

b) Problem with bottom or non-return

valve

b) Repair bottom or non-return valve.

c) Clogged bottom valve

c) Check valve.

d) Inlet pipe equipped with non-return

valve

d) Check inlet pipe, remove air.

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The pump emits unusual

noises and vibrations

a) Inlet pipe leak

a) Check inlet pipe.

b) Inlet pipe too small or clogged by

particles

b) Improve or repair inlet pipe.

c) Air in the pump or inlet pipe

c) Re-fill liquid, remove air.

d) Too low pump heads of device and

pump

d) Improve system or choose a differ-

ent model.

e) Friction of mechanical parts

e) Repair pump.

Only carry out e) after consultation.

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Disposal regulations

EU guidelines regarding the disposal of scrap electric appliances (WEEE, 2012/19/EU) were imple-

mented in the law related to electrical and electronic equipment and appliances.

All WilTec electric devices that fall under the WEEE regulations are labelled with the crossed-out

wheeled waste bin logo. This logo indicates that this electric equipment must not be disposed with the

domestic waste.

The company WilTec Technik GmbH has been registered in the German registry EAR under the WEEE-

registration number DE45283704.

Disposal of used electrical and electronic appliances

(intended for use in the countries of the European Un-

ion and other European countries with a separate col-

lection system for these appliances).

The logo on the article or on its packaging points out

that this article must not be treated as normal house-

hold waste but must be disposed to a recycling collec-

tion point for electronic and electrical waste equipment.

By contributing to the correct disposal of this article you

protect the environment and the health of your fellow

men. Environment and health are threatened by inap-

propriate disposal.

Material recycling helps reduce the consumption of raw materials.

Additional information on recycling this article can be provided by your local community, municipal waste

disposal facilities or the store where you purchased the article.

Address:

WilTec Wildanger Technik GmbH

Königsbenden 12 / 28

D-52249 Eschweiler

Important notice:

The reprint or reproduction, even of excerpts, and any commercial use, even in part, of this instruction

manual require the written permission of WilTec Wildanger Technik GmbH.

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