Intelligent and secure room control: the new KNX approach with eTR 103 AC KNX sec

In modern building automation systems, climate control is one of the most essential yet complex functions to optimize. Overly complex interfaces, multiple devices, and intricate configurations can reduce both installation efficiency and everyday usability.

To address these challenges, Elsner Elektronik introduces the new generation of KNX room controllers, eTR Secure, designed to focus strictly on what is truly required in the room, reducing unnecessary complexity without compromising essential functionality.

The first device in the range is the eTR 103 AC KNX sec, developed for controlling VRF and AC climate systems with a clear design philosophy: direct control, functional integration, and maximum ease of use.

A more essential approach to room control

The eTR Secure philosophy is based on a straightforward principle: simplify system architecture by integrating all essential room climate functions directly into the device.

This approach reduces the need for additional components and streamlines design, installation, and day-to-day operation. The result is a more transparent and efficient solution, ideally suited for applications such as hotels, offices, and commercial buildings.

Direct and intuitive climate control

The eTR 103 AC KNX sec enables full control of VRF units directly from the room.
Through touch-sensitive controls, users can effortlessly adjust setpoint temperature, operating modes, and fan speed in a clear and intuitive way.

The device supports the main operating modes—heating, cooling, and dehumidification—with both automatic and manual operation depending on system requirements.

Discover eTR 103 AC KNX sec

Measurement, control, and flexibility

The controller integrates a built-in temperature and humidity sensor for direct room measurement, while also allowing the use of external or combined values for more precise control.

Automatic operation is based on an integrated PI controller, ensuring stable and continuous comfort regulation even under varying conditions.

In addition, configurable inputs allow the connection of push-buttons, window contacts, or temperature sensors. Integrated logic functions enable advanced control scenarios directly within the device, eliminating the need for external modules.

Security with KNX Data Secure

The new generation natively supports KNX Data Secure, ensuring encrypted and protected communication within the KNX system.

This significantly enhances system security and meets current requirements for data protection, integrity, and network reliability.

Simplified installation and commissioning

The eTR Secure series is designed to reduce complexity throughout installation and commissioning.

Features such as Smart Linking and semantic tagging enable faster, more structured configuration, reducing commissioning time and improving overall project clarity.

The result is a more efficient workflow from initial setup through to long-term maintenance.

Applications

The eTR 103 AC KNX sec is ideally suited for environments where climate control must combine precision with simplicity of use:

• hotels

• office buildings

• commercial spaces

• VRF and AC-based applications

In these environments, direct room control reduces the need for additional devices and enhances the overall user experience.

The eTR 103 AC KNX sec marks a clear evolution in KNX room control: more streamlined, more integrated, and significantly easier to use.

A solution designed to simplify the work of professionals while delivering reliable, consistent comfort in modern buildings.

Available from MT Distribuzione!

Contact us for further technical information, assistance in selecting the right solution, and a tailored quotation for your project.