Helios Fans KWL 220 D L

Ultra-flat ceiling units with heat recovery for the central supply and extract ventilation of apartments and small single family houses. Certified according to the passive house standard. Equipped with Helios easy Controls 3.0, the innovative control concept for simple network connection and web browser control. Units come with highly efficient plastic heat exchangers and energy-efficient EC motors. Made of galvanised steel sheet, inner and front panels powder coated in white, double-walled, with 20 mm heat and sound insulation on all sides. Installation-friendly and maintenance friendly. All elements are easily accessible through removeable side panels. Large cross counterflow heat exchanger made of plastic, heat recovery efficiency of up to 90 %. Two low-noise high-performance centrifugal fans with energy-saving EC motors ensure the air supply and extraction. Maintenance-free, easily removeable for cleaning, if required. Clean outdoor air supply via ISO Coarse 75% (G4) filter and2nd filter stage via optional ISO ePM1 50% (F7) or activated carbon filter. Extract air side equipped with an ISO Coarse 75% (G4) filter in front of the heat exchanger. Left hand facing. Air flow rates up to approx. 220 m³/​h