EPC Series Pressure Switch
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Product Information
Specifications
- Model: EPC-2
- Item Number: 51566
- Max. Current: 10 A
- Max. Operation Pressure: 10
- Max. Temperature of Liquids: 60°C
- Connections:
- Protection Class: IP 65
Product Usage Instructions
Safety Instructions
Before using the device, please read and understand the safety
instructions provided in the manual. Ensure that the device is not
used by individuals with impaired abilities or children without
supervision.
Electrical Connection
The electrical connection should be made to an earthed socket
with a voltage of 230 V ~ 50 Hz and a minimum 10 A fuse.
Pressure Regulation
The pressure switch has an initial pressure setting of x 1.5 to
2.2 and a minimum pump pressure setting of x + 0.8 to 3.0.
Installation Instructions
Follow the installation instructions provided for the EPC-2
model. Ensure proper wiring and connection as per the wiring
diagrams provided in the manual.
FAQ
Q: What should I do if the device does not operate
correctly?
A: If you encounter any issues with the operation of the device,
please contact our customer service team for assistance before
attempting to return the product.
Q: Can children use or maintain the device?
A: Children should not operate, clean, or maintain the device.
It should only be used by individuals with the necessary knowledge
and experience or under supervision.
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Operation Manual Pressure Switch EPC Series
EPC-2
51566
Illustration similar, may vary depending on model
Please read and follow the operating instructions and safety information prior to initial operation. Technical changes reserved! Illustrations, functional steps, and technical data may deviate insignificantly due to continuous further developments.
The information contained in this document may alter at any time without prior notice. No part of this document may be copied or otherwise duplicated without prior written consent. All rights reserved. WilTec Wildanger Technik GmbH cannot be held liable for any possible mistakes in this operating manual, nor in the diagrams and illustrations shown. Although WilTec Wildanger Technik GmbH has made every possible effort to ensure that this operating manual is complete, accurate, and up-to-date, errors cannot be ruled out entirely. If you have found an error or wish to suggest an improvement, we look forward to hearing from you. Send us an e-mail to:
service@wiltec.info
or use our contact form:
https://www.wiltec.de/contacts/
The most recent version of this manual in several languages can be found in our online shop:
https://www.wiltec.de/docsearch
Our postal address is:
WilTec Wildanger Technik GmbH Königsbenden 28 52249 Eschweiler Germany
To return your goods for exchange, repair, or other purposes, please use the following address. Attention! To allow for a trouble-free complaint or return, it is important to contact our customer service team before returning your goods.
Retourenabteilung WilTec Wildanger Technik GmbH Königsbenden 28 52249 Eschweiler Germany
E-mail: service@wiltec.info Phone: +49 2403 555920 Fax: (+49 2403 5559215)
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Introduction
Thank you for choosing to purchase this quality product. To minimise the risk of injury, we ask you to always take some basic safety precautions when using this product. Please read this operating manual carefully and make sure that you understand it. Keep these operation instructions in a safe place.
Safety instructions
CAUTION: 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 follow the instructions made by this person on how to correctly use the device. Children should be supervised to ensure that they do not play with the device. Children must not clean or maintain the device.
ATTENTION: · Perform 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. · Only use the device accordingly to the intended purpose stated in this manual. · You are responsible for the safety of the working zone. · If the cable or the plug is damaged due to external influences, the cable must not be repaired,
but must be replaced with a new one. This work can only be carried out by an electrician. · The voltage of 230 V AC indicated on the nameplate of the device must match the existent
mains voltage. · Never lift, carry, or fix the device by using the power cable. · Make sure that the electrical plug connection is protected from flood and moisture. · Before working on the device (maintaining, repairing, cleaning it), pull out the plug. · The user is responsible for complying with local safety and mounting regulations. Ask an elec-
trician, if necessary. · In case of device failure, repairs can only be carried out by an electrician.
WARNING: Read all safety precautions and instructions. Failure to obey the safety precautions and instructions might cause an electric shock, a fire, and/or severe injuries. Keep all safety precautions and instructions for future use.
Resistance
· The maximum temperature of the pumped liquid should not exceed +35 in continuous operation.
· The pump must not be used to pump flammable, gassing, or explosive liquids. The pump must not be used to pump other liquids, especially motor fuels, cleaning agent, or other chemical products.
Electrical connection
The electrical connection is made to an earthed socket 230 V ~ 50 Hz. Fuse min. 10 A.
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Technical specifications Refer to the name plate of the device concerning initial pressure and voltage.
Max. current (A)
10
Max. operation pressure () 10
Max. temperature of liquids () 60
Connections ()
32,8933,25 (1) external thread
Operating mode and connection of the pressure switch
Notes: · The circuit board must not be removed from the casing. · The control of the pump comes with a connection diagram showing the correct installation. Take the appropriate marks into consideration; a wrong connection may cause a court circuit and destroy the control of the pump. · For connection, only use an earthed three-conductor cable. The diameter of the cable must have a minimum of 7 mm and a maximum of 9.5 mm. Make sure to install the cable so that a portion of the cable is below the level of the fixing screws (s. fig.). One of the front ends of the cable must be inferior to the position of the fixing screw while de cable is connected to the mains as shown on the figure. · The four screws of the casing and the coupling nut fixing the cables must be well tightened to avoid any penetration of water into the casing.
Operation
· With the pressure switch being connected to the mains, the green LED “Power On” will light up, and the orange LED “ON” (pump is working) will show that the pump has been switched on.
· The pump continues for about 12 s to fill the system with water and to reach the pressure required.
· After incorrect finishing of this cycle, the red LED “Failure” will light up. In that case, with the water tap open, press the restart button until the red LED goes off.
· Let the restart button go and close the water tap. The pump will stop as soon as the maximum pressure will have been reached.
Working principle
· The control of the pump is adjusted so that the entire process is automatic. · Failures, e.g., a suction line blocked, lack of water, or comparable problems, are recognised
automatically; then the pressure switch will activate the failure mode. The red LED “Failure” will light up; a stop signal is sent to the pump at the same moment to avoid damages caused by the pump running dry. · After solving the problem, the system can be re-started with the help of the restart button.
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Pressure regulation
· Before commissioning, check the initial pressure and mains voltage. The appropriate information is to be found on the name plate and instruction manual.
· The pressure switch needs to be installed in vertical position; when operating on an initial pressure of 1.5 bar, the position of the highest water tap/water outtake point must not exceed 13 m in relation to the pressure switch. The pump must have a pressure 0.8 bar superior to the initial pressure.
· If using variable settings, make sure that the initial pressure, height, and minimum pump pressure match the following schedule:
Initial pressure () x 1.5 2.2
Height (m) H 10 × x 2
13 20
Min. pump pressure () P = x + 0.8 2.3 3.0
Model
51566 EPC-2
Protection class IP 65
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Installation instructions EPC-2
1 1
1
2
1
1
1 2
3 300 00
50 0 H
1
1 2 3
1
1
nta t r
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3
5
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Wiring diagram for connection of different pump motors to pressure switch
1
1
1
2 3
1
1
1
ela
ela
1
1
3
Wiring diagram for monophase 220 V pumps up to
0.55 kW/1.1 kW.
Wiring diagram for monophase 220 V pumps over
0.55 kW/1.1 kW — control via 2phase relay (contactor); choose
of relay depending on pump power, max. 4 kW or 5.5 hp.
Wiring diagram for three-phase pumps — control via 3-phase relay (contactor); choose of relay depending on pump power,
max. 4 kW or 5.5 hp.
Possible errors and solutions
Problem Pump does not start. Pump does not stop.
Intermittent operation of pump Pump blocked
Dysfunction of pressure switch
Other dysfunction
Circuit board damaged
Missing voltage
Pump defect
Mixed-up electric cables
Circuit board damaged
There is a leak with a loss supe-
Flow detector trapped in the up- rior to 1 /min.
per position
Reset button blocked
Pump has not enough pressure
Circuit board damaged
There is a leak with a loss inferior
Pump has not enough pressure to 1 /min.
Circuit board damaged
No water
The pump generates less water Suction impossible/blocked than required for start.
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Regulations for waste disposal
The Waste Electrical and Electronic Equipment Directive (WEEE Directive, 2012/19/EU) of the EU was implemented in the German law related to electrical and electronic equipment and appliances.
All WilTec electric devices that fall under the WEEE directive are labelled with the symbol of a crossedout wheeled rubbish bin. This symbol indicates that this electric device must not be disposed of with the domestic waste.
WilTec Technik GmbH is registered with the German registration authority EAR (Stiftung ElektroAltgeräte Register) under the WEEE-registration number DE45283704.
Disposal of used electrical and electronic devices (intended for use in the countries of the European Union and other European countries with a separate waste collection system for these devices). The symbol on the packaging or the product itself indicates that this product must not be treated as normal domestic waste but must be disposed of at a recycling collection station for electrical and electronic waste. By disposing of this product correctly, you contribute to the protection of the environment and the health of your fellow people. Inappropriate disposal threatens the environment and health.
Material recycling helps to reduce the consumption of raw materials.
Additional information about the recycling of this product can be provided by your local commune, the municipal waste disposal facilities, or the store where you purchased the product.
Address: WilTec Wildanger Technik GmbH
Königsbenden 12 / 28 52249 Eschweiler Germany
Important Note:
Reproduction and any commercial use (of parts) of this operating manual, requires a written permission of WilTec Wildanger Technik GmbH.
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Documents / Resources
 | WilTec EPC Series Pressure Switch [pdf] Instruction Manual EPC-2, 51566, EPC Series Pressure Switch, EPC Series, Pressure Switch, Switch |