THE CHALLENGES

High requirements for energy efficiency and sustainability to meet DGNB Platinum standards

Ensuring fail‑safety in complex room automation systems

Integration of comfort functions and accessibility into a sophisticated design concept

For the building automation of the Kimpton Hotel, LOYTEC Electronics implemented an end-to-end solution that ensures both comfort and energy efficiency. The core element of the room automation system is the LROC‑400, installed in each of the 155 rooms.

These controllers manage the regulation of the HVAC systems (fan coils), control the electric underfloor heating in the bathrooms, and operate the exhaust fans. In addition, the L‑ROC enables lighting control via switched power outlets. Thanks to the integrated KNX interface, operation is carried out using high‑quality room control units and switches from JUNG, which blend seamlessly into the hotel’s design concept.

Communication with the central Building Management System (BMS) takes place via BACnet, ensuring seamless integration of all building services. Fault messages are transmitted directly from the room to the BMS, enabling fast diagnostics and troubleshooting. A special feature is the integration of vibrating pillows for deaf guests in the event of a fire alarm, highlighting the hotel’s commitment to accessibility

Reliability and Flexibility

A key advantage of the LOYTEC solution is its distributed logic architecture: in the event of a malfunction, only a single room is affected, never an entire floor or the whole building. Furthermore, the L‑ROC system architecture offers flexibility for future modifications.

Because the controllers include an integrated DALI interface, the lighting system can easily be upgraded from conventional wiring to DALI during future renovations. In case of a device failure, the room controller can be

replaced within minutes by an electrician without the need for any software tools.Furthermore, the L‑ROC system architecture offers flexibility for future modifications.

Because the controllers include an integrated DALI interface, the lighting system can easily be upgraded from conventional wiring to DALI during future renovations. In case of a device failure, the room controller can be replaced within minutes by an electrician without the need for any software tools.

Sustainability and DGNB Platinum Certification

Sustainability: Contribution to the DGNB Platinum certification of the district through energy‑efficient control strategies and centralized setpoint management.
Flexibility: Future‑proof system architecture with the option for DALI upgrades.
Comfort & Safety: Individual room control, rapid fault diagnostics, and accessible alarm signaling.

The entire FOUR Frankfurt district has been awarded DGNB Platinum certification by the German Sustainable Building Council (DGNB).

LOYTEC solutions play a significant role in achieving this distinction by enabling highly energy‑efficient regulation of room climate and centralized setpoint control for every guest room.

In addition, the hotel supports the IHG Green Engage digital environmental management system, which monitors and optimizes energy, water, and waste performance in real time.

Project Timeline and Challenges

Spring 2023: Start of the building automation installation

Spring 2025: Official opening

Project Partners and Implementation

The electrical installation was carried out by Heinle Elektrotechnik GmbH, while the planning was handled by TP‑Elektroplan.
The building automation system was installed in spring 2023, ensuring that the hotel was fully operational and ready for its official opening in spring 2025.

With the LOYTEC solution, the Kimpton Hotel at FOUR has implemented a state‑of‑the‑art, flexible, and sustainable building automation system that meets the high requirements for comfort, design, and energy efficiency.

In doing so, LOYTEC makes a key contribution to the district’s DGNB Platinum certification and supports the environmental strategy of the IHG Green Engage program.