Olimp duct free units are designed for ventilation, heating or cooling of production halls, trading areas, storage rooms, sports halls and other rooms located in large size buildings with empty space inside. They are manufactured in two sizes of 5000 and 8000 m³/h capacity. Their advantage is the elimination of the necessity to install air distributing ducts and the fact that the units are placed on the roof saves space typically occupied by an engine room. As a standard, olimp duct free roof units are equipped with power supply-control automation systems.