Double floors are standard in modern office buildings. However, the entire hollow space under the double floor is not needed for the laying of electric cables, data cables, etc. TROX recognised the potential of this free space for ventilation technology and developed a range of under floor units for various air conditioning solutions.

The latest development from this range is the secondary air unit (FSL-U-SEK). This decentralised ventilation unit is a secondary air unit that can be used to heat and cool rooms. With a supply air volume flow rate of 80 – 300 m³/h, a cooling capacity of 214 - 792 W and a heating capacity of 494 - 1613 W, the system is dimensioned such that it can be individually adapted to various office solutions. The band sound power level of 29 - 42 dB (A) ensures a smooth working environment in the office rooms.

Further TROX products offering under floor ventilation solutions are floor induction diffusers (BID) which enable room-high glass façades to be combined with state-of-the-art ventilation technology.

Decentralised supply air units with secondary air supply (FSL-U-ZUS) which supply outside air into the building, boost the heating and cooling capacity by introducing secondary air.

The supply and extract air units (FSL-U-ZAB) provide complete and self-sustaining room ventilation and allow users to individually control the room climate.

Thanks to these solutions, TROX is one of the few companies on the market for under floor ventilation systems that is capable of offering solutions tailored to meet practically all requirements.

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TROX is the leader in the development, manufacturing, and sales of components and systems for indoor ventilation and air conditioning.

With 24 subsidiaries across 22 countries and 14 production plants, TROX is the European market leader for ventilation and air-conditioning systems and enjoys worldwide success. Founded in 1951, TROX, which has 3,000 employees, earned more than EUR 380 million in revenues worldwide in 2008. With more than 25 sales offices and over 50 representatives and importers, TROX products and concepts are known all over the globe.


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