A facade component and an air conditioner form a single unit. This is completed with an additional exhaust air window with outside double glazing and an inner pane, which can swing out for cleaning. On the one hand, this allows to save energy; on the other hand, the interior pane is always held at room temperature. Noise control is effective with the closed exhaust air facade and the result is comfortable workspaces with good thermal comfort, excellent air conditioning and no drafts. By removing suspended ceilings, room is freed up for the installation of a double floor, with supply ducts for the air conditioners as well as electrical and data wiring.
That means that surface area requirements for air distribution are omitted, new buildings can make up to 20 % lower building heights. In summary, the solution with FSL products offers an annual power consumption reduction of around 50% for building services. A self-sufficient heating and air conditioning of each floor makes flexible use possible. Finally, despite the numerous individual devices, maintenance costs are low: Annual maintenance costs are only approx. 1.5 % of the devices; initial costs are lower than the costs of window cleaning.