Rehau Nea Smart 2.0 24 V U-module Installation Guide

Rehau Nea Smart 2.0 24 V U-module Installation Guide

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REHAU NEA SMART 2.0 24 V U-Module A1

REHAU logo

NEA SMART 2.0
U-Module 24 V

Quickinstall
Safety Instructions and Product Conformity

Warning 2  Risk of life through electrical shock! The electrical installation must follow the applicable national standards and guidelines as well as any specific requirements of your local energy supplier. These instructions are intended for use by a qualified person who is holding an official certificate in one of the following professions: electrician or electronics engineer.
Always read the instructions prior to commencing the installation. Connection to the final power supply must only be carried out after the installation is complete.
Hereby, REHAU Industries SE & Co. KG declares that the Nea Smart 2.0 U-Module 24V is in compliance with EU directives 2014/35/EU, 2014/30/EU and UK regulations UK: 2016 No. 1101, 2016 No. 1091. The full text of the and UK declaration of conformity is available at the following internet address:
www.rehau.com/neasmart2

Adress

REHAU Industries SE & Co. KG
Helmut-Wagner-Str. 1
Rheniumhaus
95111 Rehau
Deutschland / Germany

Only for UK – Importer adress:

REHAU Ltd.
Hill Court
Walford
Ross-on-Wye
Herefordshire
HR9 5QN
United Kingdom

System Overview

REHAU NEA SMART 2.0 24 V U-Module A2

Scope of Delivery

1x REHAU NEA SMART 2.0 24 V U-Module A3

Wall Installation

REHAU NEA SMART 2.0 24 V U-Module B1REHAU NEA SMART 2.0 24 V U-Module B2REHAU NEA SMART 2.0 24 V U-Module B3REHAU NEA SMART 2.0 24 V U-Module B4REHAU NEA SMART 2.0 24 V U-Module B5

DIN Rail Installation

REHAU NEA SMART 2.0 24 V U-Module C1REHAU NEA SMART 2.0 24 V U-Module C2REHAU NEA SMART 2.0 24 V U-Module C3REHAU NEA SMART 2.0 24 V U-Module C4

Diagrams

REHAU NEA SMART 2.0 24 V U-Module C5

Warning 1
Electrical voltage! Danger to life!

The system is live.

  • Prior to opening always disconnect from the mains and secure all components of the system in such a way that they cannot accidentally be switched on.
  • Disconnect external voltages at the relay contacts and secure against unintended activation.
  • Check for absence of voltage!
Electrical terminations

REHAU NEA SMART 2.0 24 V U-Module C6Solid cable                       0,5-1,5 mm²
Multiple stranded cable   1,0-1,5 mm²

REHAU NEA SMART 2.0 24 V U-Module C7

A B C DAnalog Input 1-3: NTC 10K AI4: NTC 10K / 0…10V 
EAnalog output 0-10 V
F G P QDigital Input 1 – 4
SYSBUS
DIP Switch for SYSBUS address
J K M ORelay 1 – 4 5A, Class 2
4 Options: Mixed Circuit / Dehumidifier / Fan Coil / Dehumidifier & Fan Coil
Mixed Circuit

REHAU NEA SMART 2.0 24 V U-Module E1REHAU NEA SMART 2.0 24 V U-Module E2REHAU NEA SMART 2.0 24 V U-Module E3REHAU NEA SMART 2.0 24 V U-Module E4REHAU NEA SMART 2.0 24 V U-Module E5REHAU NEA SMART 2.0 24 V U-Module E6REHAU NEA SMART 2.0 24 V U-Module E7REHAU NEA SMART 2.0 24 V U-Module E8

ASupply temperature sensor
BReturn temperature sensor
COutdoor temperature sensor
E0 – 10 V 3-way valve
HSYSBUS
IDIP switch for SYSBUS address
JPump mixed circuit
Dehumidifier

REHAU NEA SMART 2.0 24 V U-Module F1REHAU NEA SMART 2.0 24 V U-Module F2REHAU NEA SMART 2.0 24 V U-Module F3REHAU NEA SMART 2.0 24 V U-Module F4REHAU NEA SMART 2.0 24 V U-Module F5REHAU NEA SMART 2.0 24 V U-Module F6

HSYSBUS
IDIP switch for SYSBUS address
JHydraulic valve dehumidifier 1 
KDemand dehumidifier 1 
MHydraulic valve dehumidifier 2 
ODemand dehumidifier 2 
Fan Coil

REHAU NEA SMART 2.0 24 V U-Module G1REHAU NEA SMART 2.0 24 V U-Module G2REHAU NEA SMART 2.0 24 V U-Module G3REHAU NEA SMART 2.0 24 V U-Module G4REHAU NEA SMART 2.0 24 V U-Module G5REHAU NEA SMART 2.0 24 V U-Module G6

HSYSBUS
IDIP switch for SYSBUS address
J K M OFan Coil 1-4
Dehumidifier & Fan Coil

REHAU NEA SMART 2.0 24 V U-Module H1REHAU NEA SMART 2.0 24 V U-Module H2REHAU NEA SMART 2.0 24 V U-Module H3REHAU NEA SMART 2.0 24 V U-Module H4REHAU NEA SMART 2.0 24 V U-Module H5REHAU NEA SMART 2.0 24 V U-Module H6

HSYSBUS
IDIP switch for SYSBUS address
JFan Coil 1
KDemand dehumidifier 1 
MFan Coil 2
ODemand dehumidifier 2 
Additional information

CE

REHAU NEA SMART 2.0 24 V U-Module QR1

WWWwebwww.rehau.com/neasmart2

This document is protected by copyright. All rights based on this are reserved. No part of this publication may be translated, reproduced or transmitted in any form or by any similar means, electronic or mechanical, photocopying, recording or otherwise, or stored in a data retrieval system.
Our verbal and written advice with regard to usage is based on years of experience and standardised assumptions and is provided to the best of our knowledge. The intended use of REHAU products is described comprehensively in the technical product information. The latest version can be viewed at www.rehau.com/TI. We have no control over the application, use or processing of the products. Responsibility for these activities therefore remains entirely with the respective user/processor.
Where claims for liability nonetheless arise, they shall be governed exclusively according to our terms and conditions, available at www.rehau.com/conditions, insofar as nothing else has been agreed upon with REHAU in writing.
This shall also apply for all warranty claims, with the warranty applying to the consistent quality of our products in accordance with our specifications. Subject to technical changes.

954635 04.2023 © REHAU Industries SE & Co. KG, Helmut-Wagner-Str. 1, Rheniumhaus, 95111 Rehau

References

Documents / Resouces

Download manual
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.


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