WilTec 50752 Operating instructions

Brand: WilTec

Model: 50752

Type: Operating instructions

WilTec 50752 is a garden pump suitable for watering green spaces, vegetable patches, and gardens, as well as for operating lawn sprinklers. It can withdraw water from ponds, streams, rain barrels, rainwater tanks, and fountains with its pre-filter. The pumped media can be clear water (sweet water), rainwater, or suds (slightly soiled water). It has a maximum flow rate of 3500 l/h, a maximum delivery head of 46 m, and a maximum suction head of 8 m. The pump output is 1200 W and the voltage/frequency is 220V/50Hz.

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Operation Manual

Garden Pump

ARTICLE 50752

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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Introduction

Thank you for purchasing this quality product. To minimize the risk of injury by means of fire or

electric shock we urge that our clients take some basic safety precautions when using this

device. Please read the operation instructions carefully and make sure you have understood its

content.

Always use a grounded power connection with the appropriate mains voltage. You can find the

corresponding mains voltage on the type plate. If you have any doubts about the connection being

grounded, have it checked by a qualified professional. Never use a faulty electric cable.

Do not open the pump in a wet or damp environment or if you are wet yourself and protect it from

direct sunlight. Install this device in a safe location so that nobody can step on the cable, fall over or

damage it. Make sure additionally you provide sufficient cooling through the ambient air and avoid

heat accumulation. Disconnect the power plug before cleaning the pump and use only a damp cloth

for cleaning. Avoid using cleaning agents and take care that no fluids penetrate into the device.

The interior of the pump contains no parts that can be inspected or serviced by the user. Leave the

maintenance, adjustment and repair to qualified technical personnel. In case of unauthorised

intervention the 2-year warranty is no longer valid! Keep these operation instructions safe.

1. Safety guideline

BEWARE:

The use of this device is allowed on standing bodies of

water, garden ponds or swimming ponds and their

surrounding areas only with fault current protection-switch

with a triggering nominal current up to 30mA (according to

VDE 0100 Article 702 and 738).

The device is not suitable for use in swimming pools,

paddling pools and other bodies of water in which during

operation people or animals linger. The operation of the

device during the stay of people and animals in the danger

zone is not allowed. Ask your electrician.

The device is not intended for use by persons (including children) with impaired or limited physical,

sensory and mental abilities or lack of experience and/or real knowledge, unless they are supervised

by a person responsible for their safety or you follow the instructions made by this person how to use

the device correctly.

Children should be supervised to make sure that they do not play with the device.

ATTENTION:

 Run a visual inspection of the device before every use. Do not use the device if the safety

appliances are damaged or worn out. Never override safety regulations.

 Use the device exclusively according to the intended purpose stated in the instructions for

use.

 You are responsible for the safety of the working environment.

 If the cable or the plug is damaged because of external influences, the cable must not be

repaired! It has to be replaced with a new one. This work can be carried out only by an

electrician.

 The voltage indicated on the type plate of the device of 230 Volt alternating voltage has to

correspond to the existent mains voltage.

 Never lift, carry or fixate the device by using the power cable.

 Make sure that the electrical plug connection is placed in a flood-proof area and is protected

from moisture

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 Before working on the garden pump disconnect the appliance by taking the plug out of the

socket.

 The user is responsible for the compliance with location specific safety and installing

regulations. (Ask an electrician).

 Consequential damage arising from flooded rooms caused by dysfunctions of the appliance

must be avoided by means of the appropriate measures. (installing an alarm system, reserve

pump).

 In case of malfunction the repair work can be carried out only by a qualified electrician or the

WilTec-service.

 The garden pumps must not run dry or having a completely closed intake port. The

manufacturer’s guarantee is no longer valid if the damage is caused by dry running.

 The garden pump must not be used for swimming pools.

 The device cannot be employed for potable water circuits.

WARNING:

Read carefully all the safety guidelines and the instructions.

Non-compliance with the safety rules and regulations can lead to an electric shock, fire and/or serious

injury. Keep the instructions and the safety guidelines in a safe place in case you need them in the

future.

Stability

The max. temperature of the conveyed water should not exceed +35°C in permanent operation. The

conveyance of explosive, flammable or gassing fluids is not allowed.

The conveyance of aggressive fluids (acids, bases, etc.) as well as of abrasive liquids (for example

sand) must be avoided.

To avoid damage caused by dry running we strongly recommend our customers to use one of our

automatic pump controls that prevent the pump from running dry.

Intended use

Field of application

 For watering green spaces, vegetable patches and gardens.

 For operating lawn sprinklers.

 With pre-filter for withdrawing water from ponds, streams, rain barrels, rainwater tanks and

fountains.

Pumped media

For pumping clear water (sweet water), rain water or suds (slightly soiled water).

Operating instructions

We recommend the use of a prefilter and a suction set with suction hose, suction strainer and a check

valve to prolong the suction process and to avoid damaging the pump with stones and foreign bodies.

Technical Data:

Pump output

1200 W

Voltage/Frequency

220V/50Hz

Max. flow rate

3500 l/h

Max. delivery head

46 m

Max. suction head

8 m

Connection

1“ IG

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Electrical connection

 The electrical connection takes place via an electric safety socket 230 V ~ 50 Hz. Fuse protection

at least 10 Amperes.

 The appliance is turned on/off by means of the ON-/OFF-switch. The indicator light of the switch

glows, if the engine is started.

 The engine is protected against overloading or blocking by means of a built-in motor protection. In

case of overheating the pump is turned off automatically due to the overheat protection and after

the cooling the pump is automatically started.

Suction line

 Connect a suction hose (plastic hose min. 3/4" spiral reinforced) directly or with a thread nipple to

the suction connection (1" internal thread) of the pump.

 The suction which is used should have a suction valve. In case the suction valve cannot be

employed a check valve should be installed in the suction line.

 Position the suction line from the water withdrawal to the pump on a rising gradient. Avoid by all

means placing the suction line higher than the pump height, air pockets in the suction line slow

down and impede the suction process.

 The suction and the pressure line have to be installed in such a way, so that they do not exert any

mechanical pressure on the pump.

 The suction valve should lie deeply enough in the water, so that a drop in the water level cannot

lead to the dry running of the pump.

 A leaking suction line prevents the suction of water due to air intake.

 Avoid sucking in foreign particles (sand etc.) and if necessary install a prefilter.

Pressure line connection

 The pressure line (should be at least 3/4") must be connected directly or via a thread nipple to the

pressure line connector (1" internal thread) of the pump.

With the suitable screw joints a 1/2"- pressure hose can be used. Correspondingly the pump

output is reduced due to the small pressure hose.

 During the suction process the shut-off devices (valves, spray nozzles) in the pressure line must

be completely open so that the air in the suction line can escape freely.

Commissioning

 Position the pump on a stable and flat location with a temperature that does not exceed 40°C.

Place the pump in a horizontal position so that the bearing can function properly; tighten the

pump to the ground.

 Install the suction line so that it is ready for use. The suction hose should not be narrower than

the suction connection. If the suction height exceeds 4 m, you must use a suction line with a

larger diameter.

 Establish the electrical connection.

 Fill in the pump with water at the pressure port.

 During the suction process the shut-off devices (valves, spray nozzles) in the pressure line must

be completely open so that the air in the suction line can escape freely.

 Depending on the suction height and the air quantity in the suction line, the first suction process

can take approx. 0,5 min - 5 min. For longer suction periods new water should be refilled.

 If the pump is removed after its use, do not forget it has to be refilled with water (before you

operate the pump again) before restarting and connecting it again.

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Maintenance advise

 The pump is largely maintenance-free. For a long operating life we recommend regular checks

and maintenance.

Attention!

Before every maintenance the pump must be switched off, so disconnect the pump from the

power supply.

 During long periods of non-use the pump must be rinsed thoroughly with water, completely

emptied and stored in a dry environment.

 In case of danger frost the pump must be completely emptied.

 After longer non-operation periods, check if the rotor turning is carried out properly by briefly

switching on and off.

 In case the pump is blocked, connect the pressure line to the water line and remove the suction

hose. Open the water line. Turn on the pump for sevaral times for approx. two seconds. This way

blockages can be cleared in most cases.

Pump’s Dysfunctions

No engine running

Cause

Remedy

No supply voltage

Check the power supply

Pump wheel is blocked– Thermal controller has

shut down

Dismantle the pump and

clean it

Parts

Description

Pump housing

Vent screw

sealing

Impeller

Screw

Impeller

Rotating. mech. sealing

Fixed mech. sealing

Abstreifer

Screw

Engine connection

Bearing

Connection box

Capacitor (1 Phase)

Cable connection

Stator

End cap

Fan casing

Bearing

Washer

Fan

Cable inlet

Screw

Engine housing

Foot

Rotor

Shaft

Key (Block)

Screw nut

"O" Ring

Drain screw +sealing

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The pump does not suck in

Cause

Remedy

The suction valve is not in the water

Put the suction valve in the water

Pump room without water

Fill in water in the pump suction

nozzles

There is air in the suction line

Check the sealing of the suction line

Suction valve leaks

Clean the suction valve

Saugkorb (Saugventil) verstopft

Clean the suction strainer

Max. suction height is exceeded

Check the suction height

Insufficient flow rate

Cause

Remedy

Suction head is too high

Check the suction height

Dirty suction strainer

Clean the suction strainer

Water level drops rapidly

Place the suction valve more deeply

Pump efficiency is reduced due to

harmful substances

Clean the pump and replace the wear

part

Thermal controller shuts down the pump

Cause

Remedy

Engine overload – high friction with

other foreign particles

Dismantle the pump and clean it,

prevent the suction of foreign

particles (Filter)

Attention!

The pump must not run dry.

Pump control

Pressure switch EDWC2001

The pressure switch automatically controls the start & stop of the pump depending on the pressure

drop (opening of the water faucet) and the water flow stop (closing the water faucet). The pressure

switch stops the pump if no water is conveyed (protection against dry running).

Technical data - specifications:

Input voltage 220-250V / 50 Hz / Max. 10A

Pressure range 1 - 3,5 bar / 51 psi

Max. pressure 10 bar

Max temperature 55°C

Connections 25,4 mm external thread

Protection class IP 65

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Function:

1. Starts and Stops the pump automatically.

2. It protects the pump against damage caused by dry running.

3. The pressure switch starts the pump for 15 seconds, if it is connected to the voltage

source. If the pressure in the line system drops, the pump is restarted. In the case of the

conventional systems with pressure switch & pressure tank, the pump stops running if a

certain pressure level is achieved. In contrast to this, the pressure switch stops depending

on the flow rate. In doing so it delays the pump’s switching off for a few seconds (7 to 15

seconds) to minimize the number of pump starts.

LED-indication:

1. The upper (1st) LED (Alarm) blinks: the automatic unit is off due to lack of water (protection

against dry running), press „Restart“ to start the unit again.

2. The middle (2nd) LED blinks: the pump is switched on.

3. The lower (3rd) LED blinks: the switch has voltage

4. Restart (Reset) – restart button

Possible dysfunctions and their solutions:

Dysfunction

Dysfunction of the unit

Dysfunction outside the unit

The pump won’t start

- Circuit board is damaged

- Missing voltage

- Pump is defect

- Mixed up electric cables

Dry running display

despite water

- Set pressure too high (Adjust the

pressure setting screw till the red

Alarm-LED is off, if the pump stops

Pump does not stop

- Circuit board is damaged

- The flow detector is trapped in the

upper position

- the reset-button is blocked

- The pump has not enough pressure

- There is a leak with more

than 0,6 l/min loss

Pump runs intermittently

(The pump starts and

stops constantly)

- Circuit board is damaged

- The pump has not sufficient

pressure

- There is a leak with more

than 0,6 l/min loss

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Disposal regulations

EU guidelines regarding the disposal of scrap electric appliances (WEEE, 2002/96/EC) were

implemented 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 registrated 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

Union and other European countries with a separate

collection system for these appliances).

The logo on the article or on its packaging points out

that this article must not be treated as normal

household waste but must be disposed to a recycling

collection 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 inappropriate disposal.

Materials’ 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 instructions

manual require the written permission of Wiltec Wildanger Technik GmbH.

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EC-Declaration of Conformity

(According to the guidelines 2004/108/EC)

Producer / person responsible

WilTec Wildanger Technik GmbH

Koenigsbenden 12

52249 Eschweiler, Deutschland

Ensures that the product:

Hauswasserwerk / Gartenpumpe

Type:

50752

Intended use:

Water pump with pressure switch

When properly used, the above mentioned model fulfils the basic requirements and

the guidelines complying with the

2004/108/EC

When evaluating the product according to the EU demands, the following standards

were applied:

EN 55014-1:2006

EN 55014-2:1997+A1

EN61000-3-2:2006

EN61000-3-3:1995+A1+A2

If the product is changed this declaration loses its validity.

Eschweiler, 13. Oktober 2009

__________________________

Bernd Wildanger

Manager

This product can be employed in all EU-states without any restrictions (as well as in other states that

follow the EU Directives).

WilTec 50752 Operating instructions

WilTec 50752 Operating instructions

WilTec 50752 Operating instructions

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