REHAU NEA SMART 2.0 R-Module 230 V

⚠️ Safety Instructions and Product Conformity

Risk of electric shock! Danger to life!

Electrical installation must be performed by qualified personnel (electrician or electronics engineer) in accordance with applicable national and local regulations and energy supplier requirements.

• Always read the instructions carefully before starting installation.
• All installation work must be performed with the system de-energized (power disconnected).
• Disconnect any external voltages at the relay contacts and secure against unintended activation.
• Always check for the absence of voltage before proceeding.

REHAU AG + Co hereby declares that the radio equipment type Nea Smart 2.0 complies with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at: www.rehau.com/neasmart2.

System Overview

The REHAU NEA SMART 2.0 system includes various components designed for intelligent room control. Key elements include:

• R-Module 230 V: The central module for system expansion.
• Base 230 V: The main control unit, providing power and connectivity.
• Room Unit: Features a digital display (e.g., showing '20.5') for temperature and settings, and user interface.
• Various other modules and connectors for system integration.

Scope of Delivery

The package typically includes:

• 1x R-Module 230 V
• Base unit
• Room Unit
• Cables and connectors
• Mounting hardware

(Note: Exact contents may vary based on the specific system configuration.)

Installation

Wall Installation

Follow these steps for mounting the unit on a wall:

1. Attach the unit to a wall bracket using screws (labeled 'a' and 'b'). Detail 'C' shows a clip mechanism.
2. Connect the necessary cables to the terminal blocks on the rear of the unit.
3. Insert the unit into its mounting position.
4. Drill holes as indicated (represented by a drill icon) for secure mounting.
5. Secure the unit using screws.

DIN Rail Installation

For installation on a standard DIN rail:

1. Mount the DIN rail using screws.
2. Clip the unit onto the DIN rail. Detail 'C' shows a locking mechanism.
3. Secure the unit on the rail using a lever or clip.
4. Connect the required cables to the unit's terminals.

Electrical Connections

The system involves connecting the R-Module 230 V to the Base 230 V unit and other components. Key connection points and functions are:

R-Module 230 V Terminals:

• ZOBUS1, ZOBUS2: System bus connections for communication with other modules and the Base unit.
• DI1: Digital Input 1.
• RZ9 - RZ12: Relay outputs (numbered 1 and 2 for each).
• RELAY1, RELAY2: Terminal designations for relay connections.
• L, N: Power connections (230 V AC).

Base 230 V Terminals (Refer to page 15 for detailed layout):

• 230 V AC L, N: Main power input.
• GND: Ground connection.
• IN 230V / OUT 230V: Power input/output terminals.
• RELAY 1-4: Relay outputs.
• RZ1 - RZ8: Relay outputs.
• DI 1, DI 2: Digital Inputs.

System Bus (ZOBUS)

The ZOBUS connection links the Room Unit to the Base unit, enabling communication and control.

Terminal Functions (from pages 19-20):

(Note: Terminal labels and functions may vary slightly across different languages provided in the document.)

Cable Specifications

The following cable types and sizes are recommended for electrical connections:

• Solid cable: 0.5 - 1.5 mm²
• Flexible cable (multiple stranded): 1.0 - 1.5 mm²

(A diagram shows an 8 mm cable diameter.)

Legal Information

This document is protected by copyright. All rights are reserved. REHAU AG + Co provides advice based on years of experience and standardized assumptions. The intended use of REHAU products is described in the technical product information, available at www.rehau.com/TI. Application, use, and processing of products are outside REHAU's control and are the sole responsibility of the user. Liability claims are governed by REHAU's terms and conditions, available at www.rehau.com/conditions. Warranty applies to consistent product quality as per specifications. Technical changes are reserved.

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