REHAU NEA SMART 2.0 Room Unit

Product Identification

Model Numbers:

(A) 13280001001, 13280001003, 13280001004, 13280041001, 13280041003, 13280041004, 13280051001, 13280051003

(B) 13280101001, 13280101002, 13280101003, 13280101004, 13280121001, 13280121002, 13280121003, 13280121004, 13280131001, 13280131002, 13280131003, 13280131004

Safety Instructions and Product Conformity

Risk of life through electrical shock!

Electrical installation must follow applicable national standards and guidelines, as well as specific requirements of your local energy supplier. These instructions are intended for use by a qualified person holding an official certificate as an electrician or electronics engineer. Always read the instructions carefully before commencing installation. All installation work must be carried out in a de-energized state.

REHAU Industries SE & Co. KG declares that the radio equipment type Room Unit (mat. no. see B) complies with EU Directive 2014/53/EU and UK regulation UK: 2017 No. 1206. The full text of the EU and UK declaration of conformity is available at: www.rehau.com/neasmart2

Technical Specifications

Frequency: 869 MHz

Transmission Power: max. +12 dBm

System Overview

The REHAU NEA SMART 2.0 system provides intelligent room control for heating and cooling systems. The Room Unit is a central component that communicates wirelessly or via bus with other system elements.

Scope of Delivery

• 1x REHAU NEA SMART 2.0 Room Unit
• 1x AAA Battery (for wireless version)

Installation

Mounting Considerations:

• Install the unit at a height of approximately 1.5 meters (5 feet) from the floor.
• Avoid mounting near heat sources (radiators, direct sunlight), drafts (windows, doors), or in areas with poor air circulation.
• Ensure the mounting location allows for easy access and visibility of the unit's display.

Connection Types:

• Bus Connection (ZOBUS): Connect the ZOBUS bus cable to the designated terminals on the unit.
• Wireless Connection: The unit can operate wirelessly.
• External Sensor: An external sensor (NTC) can be connected for more accurate temperature readings.

Assigning a Room Controller to a Room Zone

This process links the Room Unit to a specific heating/cooling zone.

For a single room zone:

1. Press the OK button.
2. Navigate using the '<' or '>' buttons to select the desired zone (RZ1, RZ2, RZ3).
3. Press and hold the OK button for more than 3 seconds to confirm the assignment.

For multiple room zones:

1. Press the OK button.
2. Navigate using '<' or '>' buttons to select the first zone (RZ1). Press OK for less than 1 second.
3. Navigate to the next zone (RZ2). Press OK for less than 1 second.
4. Navigate to the next zone (RZ3). Press OK for less than 1 second.
5. Press and hold the OK button for more than 3 seconds to save the assignments.

Deleting a Room Controller Assignment

1. Press the OK button.
2. Navigate using '<' or '>' buttons to select the zone to delete.
3. Press and hold the OK button for more than 3 seconds to delete the assignment.

Setting up an External Sensor

This allows the Room Unit to use an external temperature or floor sensor.

1. Access the installer menu by pressing and holding the OK button for more than 5 seconds.
2. Navigate using '<' or '>' buttons to select the desired parameter (e.g., P01 for floor temperature, P03 for external room temperature).
3. Press OK for less than 1 second to select the parameter.
4. Navigate using '<' or '>' buttons to set the parameter value (e.g., select the type of sensor connected).
5. Press and hold the OK button for more than 3 seconds to save the settings.

Parameter Descriptions for External Sensors:

• P0: Not connected - No external sensor is used.
• P01: Floor temperature probe for minimum and maximum value monitoring (minimum value for cooling, maximum for heating).
• P02: Floor temperature probe for minimum and maximum value monitoring (minimum value for cooling and heating, maximum for heating).
• P03: External room temperature probe (room temperature control solely based on this value).
• P04: External floor temperature probe (floor temperature control only).
• P05: External room temperature probe (room temperature control based on the average of external and internal sensors).
• P06: Dew point sensor (contact closes when no condensation is present).
• P07: Window contact (contact closes when the window is closed).
• P08: Temperature sensor for chilled surfaces or pipes (stops cooling when dew point temperature is reached).

Error Messages

The following error codes may appear on the Room Unit display:

• Er 01: Room temperature outside the measurement range.
• Er 02: Room temperature sensor broken (interruption).
• Er 03: Room temperature sensor shorted.
• Er 04: Humidity sensor outside the measurement range.
• Er 05: Humidity sensor broken (interruption).
• Er 06: Humidity sensor shorted.
• Er 07: Remote temperature sensor outside the measurement range.
• Er 08: Remote temperature sensor broken (interruption), check supply line.
• Er 09: Remote temperature sensor shorted, check supply line.
• Er 10: Connection error between base and R-/U-module.
• Er 50: Communication error between base and fan coil.
• Er 51: Motor fault.
• Er 52: Fan Coil Stop - difference between air and T2 water temperature too large.
• Er 53: Sensor T2 water temperature defective (short-circuit / interruption).
• Er 54: T2 water temperature too cold for heating or too warm for cooling.
• Er 56: Fan Coil in fault mode.
• Er 90: Communication error between base and R-Module.
• Er 99: Indication of a message shown only in the NEA SMART 2.0 app.

Additional Information

For more details and the latest software versions, please visit:

www.rehau.com/neasmart2

Legal and Copyright Information

This document is protected by copyright. All rights are reserved. REHAU Industries SE & Co. KG provides advice based on experience and standardized assumptions. Application, use, and processing of products are outside REHAU's control and are the sole responsibility of the user. Liability is governed by REHAU's terms and conditions, available at www.rehau.com/conditions. Warranty applies to consistent product quality as per specifications. Technical changes reserved.

REHAU Industries SE & Co. KG
Rheniumhaus
Helmut-Wagner-Straße 1
95111 Rehau
Germany

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