Netherlands – Cooling and ventilation equipment – NL-Petten: The supply and installation of air handling units, replacing the existing ones in buildings 308 and 309.

The European Commission's Joint Research Centre (JRC) in Petten intends to replace the existing Air Handling Units (AHUs) and associated HVAC infrastructure located in buildings 308 and 309. The current ventilation systems are obsolete and have reached the end of their operational lifespan. Furthermore, preliminary technical assessments have indicated that the existing air renewal capacity is insufficient to maintain optimal indoor air quality for the occupants. To ensure a healthy, safe, and productive working environment, this procurement aims to upgrade the facilities. The primary objective is to improve indoor air quality, while simultaneously improving the overall energy efficiency of the buildings. The scope of this contract encompasses the supply, installation, and comprehensive commissioning of the new air handling systems and related infrastructure to provide a fully functional delivery. This includes the safe removal and disposal of the existing AHUs, roof support frames, humidification systems, and redundant cabling or piping, ensuring continuous operation of the buildings during the transition. The technical project involves replacing the units with new, highly energy-efficient equipment featuring heat recovery systems. Additionally, the contract covers the complete adaptation of the hydraulic system to operate under a new, lower-temperature regime, the installation of humidification systems, installing structural supports on the roofs, and the execution of all necessary electrical works. Finally, it requires the full integration of the new instrumentation and controls with the existing Siemens Building Management System (BMS), alongside essential auxiliary tasks such as ductwork cleaning.