Symbols Used In This Document; Product Introduction; Applications; Construction - Grundfos LC A2 Instrucciones De Instalación Y Funcionamiento

English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
1. Symbols used in this document
2. Product introduction
3. Applications
3.1 Construction
4. Installation
5. Examples of systems
6. Level switches
6.1 Float switch
6.2 Vertical level switch
7. Electrical connection
8. Technical data
9. Disposal
Warning
Prior to installation, read these installation
and operating instructions. Installation and
operation must comply with local
regulations and accepted codes of good
practice.
Warning
The use of this product requires
experience with and knowledge of the
product.
Persons with reduced physical, sensory or
mental capabilities must not use this
product, unless they are under supervision
or have been instructed in the use of the
product by a person responsible for their
safety.
Children must not use or play with this
product.

1. Symbols used in this document

Warning
Page
If these safety instructions are not
observed, it may result in personal injury.
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If these safety instructions are not
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Caution observed, it may result in malfunction or
damage to the equipment.
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Notes or instructions that make the job
Note
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easier and ensure safe operation.
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The safety instructions in the manuals for the lifting
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station and the appliances connected must also be
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2. Product introduction

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The LC A2 alarm device is designed for stopping
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washing machines or dishwashers to prevent
flooding.

3. Applications

The LC A2 is intended for the monitoring of pumping
stations and small lifting stations.
A level switch, installed in the appliance to be
monitored, will be activated for example in case of
overflow due to pump failure or clogging. The unit
will sound alarm and activate an integrated relay
contact to switch off the power supply to the washing
machine connected. The function, which is preset,
prevents flooding by stopping the washing machine
pump.

3.1 Construction

The LC A2 consists of a plug housing with integrated
socket. The socket can be used as power supply for
other appliances and for switching on/off appliances
in case of fault.
The unit is mains-powered by means of a
short-circuit-proof safety isolating transformer. The
voltage for the control relay (normally open contact)
is below 24 V.
The LC A2 has a potential-free signal output.
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