WilTec SKD-1 with cord User manual

Operation Manual
SKD-1 - Pressure Switch
50610 SKD-1
51264 SKD-1 with cord
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.

The information contained in this document is subject to change without prior notice. o part of this
document can be copied or duplicated in another form without the prior written consent of WilTec
Wildanger Technik GmbH. The WilTec Wildanger Technik GmbH assumes no liability for any errors in
this user manual or the connection diagram.
Although WilTec Wildanger Technik GmbH has made every effort to make sure that this user manual
is complete, accurate and updated, errors cannot always be avoided. In the event of problems with
this user manual please complete and send this form back to us.
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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
instructions carefully and make sure you have understood its content.
Keep these operation instructions safe.
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Safety Instructions
CAUTION:
This device is not intended for use by persons (including children) with limited physical, sensory or
mental abilities or for lack of experience and/or knowledge, unless they are supervised or instructed
how to use this device by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the device. Cleaning and user
maintenance must not be carried out by children.
ATTENTION:
Perform a visual inspection of the device before each use. Do not use the device if safety de-
vices are damaged or worn. ever disable safety devices.
Only use the device for the purpose specified in these instructions for use.
You are responsible for safety in the work area.
If the cable or plug is damaged due to external influences, the cable must not be repaired! The
cable must be replaced with a new one. This work may only be carried out by a qualified elec-
trician.
The voltage of 230 Volt alternating voltage specified on the type plate of the device must cor-
respond to the existing mains voltage.
ever lift, transport or attach the device to the power cord.
Make sure that the electrical plug connections are located in a flood-proof area or are pro-
tected from moisture.
Disconnect the mains plug before carrying out any work on the appliance.
The operator is responsible for compliance with local safety and installation regulations. (Ask a
qualified electrician if necessary)
If the device should fail, repair work may only be carried out by a qualified electrician.
WARNING:
Read all safety instructions and instructions. Failure to follow the safety precautions and instruc-
tions may result in electric shock, fire and/or serious injury.
Keep all safety instructions and instructions for the future.
Stability
The maximum temperature of the pumped liquid should not exceed +35°C in continuous operation.
o flammable, gassing or explosive liquids may be pumped with this pump. This pump must not be
used for other liquids, in particular motor fuels, cleaning agents and other chemical products!
Electrical connection
The electrical connection is made at a 230 V ~ 50 Hz socket outlet with grounding contact. Fuse
protection at least 10 Ampere.
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Technical Data - Specifications:
Input Voltage 220-250V / 50 Hz / Max. 10A
Max. pressure 10 bar
Max. temperature 60°C
Connections 25,4 mm external threads
Protection class IP 65
Functional description of the general operating mode of the pump control:
The pump control consists of a pressure switch and a water flow switch. The switching cycles are then
determined from the two switching states of the pressure switch and the water flow switch.
Water pressure switch actuated + water flow switch not actuated = normal switch-off (delay of
approx. 3-8 sec. until switch-off).
Wasser water pressure switch not actuated + water flow switch actuated = pump on
Water pressure switch not actuated + water flow switch not actuated = switch-off due to dry
running and indication of fault. (delay 8-15 seconds)
Common causes of errors:
First problem case:
The pump control switches off and displays failure/error even though water was pumped successfully
before. After a reset, this error will reoccur immediately or after a short time.
Possible causes:
A: The water pressure of the pump used is not sufficient to operate the water pressure switch.
(Causes can be a blockage, a worn pump body or a pump that is too weak).
B: The water pressure switch in the pump control is blocked. (Cleaning with clean water can solve the
problem or the housing of the pressure switch in the pump control must be cleaned. Sand and other
sediments may have deposited here.)
Second problem case:
The pump control leaves the pump permanently switched on regardless of whether the tap is open or
closed.
Possible causes:
A: The installation position of the pump control was not taken into account. This does not reset the wa-
ter flow switch and it is permanently actuated. (Check installation position and correct if necessary.
B: The water flow switch at the pump control input is permanently actuated. This can be caused by
contamination, calcification or a foreign body. (An optical check confirms this problem and can be cor-
rected by cleaning.)
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Notes on installation:
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If the water column between
the pump and the highest
point of the pipe exceeds 15
meters, the automat cannot
be installed directly at the
pump. The machine must
then be installed at a height
where the overhanging wa-
ter column is shorter than 15
meters. For example: If the
water column is 20 meters,
the machine must be in-
stalled at least 5 meters
above the pump.
The machine is equipped
with a test valve to protect
the piping system from pres-
sure loss.
Do not place any
extraction points between
the pump and the Automat.
Pump
Pressure
The automat is set to an
inlet pressure of 1.5 bar. The
pump inlet pressure must
normally be 0.5 bar higher
than the starting pressure,
i.e. at least 2
bar.
Before the start of
the machine the
suction hose and the
pump filling must be
checked!
We recommend
connecting the pump
control to the house
water pipe via a flexi-
ble hose.
The safety valve to
prevent water leakage
if the diaphragm bursts
(do not work on or
change!).
The control must be
oriented upwards ac-
cording to the direction
of the arrow.
The controller can be
installed directly on the
pump or between the
pump and the first tap-
ping point.

Wiring diagram for connecting various pump motors to the automatic machines:
Wiring diagram for single-
phase 220V pumps up to 1.1
kW
Wiring diagram for single-
phase 220V pumps over 1.1
kW Control via 2-phase relay
(contactor), relay selection
according to pump perfor-
mance
Wiring diagram for three-phase
400V pumps also over 1.1 kW
Control via 3-phase relay (con-
tactor), selection of relay ac-
cording to pump capacity
Possible errors and their elimination:
Error Error at the machine Error outside the machine
Pump does not start - Board is damaged - Missing voltage
- Pump defective
- Replaced electrical cables
Pump does not stop - Board is damaged
- The flow detector is stuck in the up-
per position.
- The reset button is blocked.
- The pump does not have sufficient
pressure
- There is a leak with more
than 0.6 l/min loss.
Intermittent pump
work
- Board is damaged
- The pump does not have 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, 2012/19/EU) 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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