Occupancy controlled ventilation in refurbished office building, combining presence and CO2 detection

From September 2015 to March 2016, UTC engaged in a major refurbishment of its Design and Research Center located in Culoz (France). Originally built in 1983, this building was intended to accommodate the Air Side Engineering team with about 60 permanent employees. The objective was first to increase the Energy Efficiency and the Indoor Air Quality of the building for the well-being of the occupants, but also to demonstrate and showcase to visiting customers a “technological and evolutionary platform” of our offer and innovations in real conditions of use. By selecting A+ Class certified materials and energy efficient equipment  (heat pump, heat recovery Air Handling Unit, sensors , easy and smart controller, ...), and by carrying out detailed commissioning and follow-up of the equipment (MANAG’R(1) methodology), it was possible to demonstrate a high level of performance to share with designers and installers. This article details the characteristics and functions of the installation, the fresh air management strategy, and finally, the performance obtained for different room types and situations.