HVAC system renovation for a historic palace in Paris

The rehabilitation of the Palais Victorien, an iconic 19th-century palace located in central Paris, required the complete modernization of the building’s HVAC systems while preserving its historical and architectural integrity.

The project, managed by our partner Clevia (Eiffage Group), a leader in HVAC-R and energy engineering solutions, presented the challenge of introducing high-efficiency cooling technology in a confined and heritage-protected environment without compromising aesthetics or structural constraints.

To meet the specific technical and architectural requirements, ThermoKey developed 2 custom-made Power Line Dry Coolers with 14 fans each, tailored to fit with the existing structure.

• The equipment was co-engineered with the client and design team, ensuring perfect integration within the available spaces.
• Each unit was remodeled and dimensionally adapted to respect the building’s structural limits and noise restrictions.
• The systems were equipped with high-efficiency EC fans for optimized airflow control and energy performance.
• An integrated electrical panel featuring BACnet IP communication enables full connectivity with the building’s automation system for monitoring and remote management.

• Compact and low-noise configuration suitable for heritage buildings
• Enhanced energy efficiency through EC technology
• Smart control and interoperability with the existing BMS
• Custom finishes to blend with the architectural environment

ThermoKey’s flexible and collaborative approach provided a fully customized HVAC solution that delivers superior thermal comfort and energy performance while fully respecting the architectural value of the Palais Victorien. The project demonstrates ThermoKey’s ability to combine innovation, efficiency, and aesthetic sensitivity in the rehabilitation of prestigious historical sites.