Central unit with heat recovery for compact and space-saving floor installation (standing). With a wide range of applications in residential, commercial and industrial applications. Certified according to the passive house standard. , Two low-noise EC high-performance fans with backward-curved impellers guarantee maximum energy efficiency. The special control technology enables constant volume or constant pressure control., Clean outside air supply through F7 filter. On the exhaust air side, an M5 filter (F5) is placed in front of the heat exchanger. All filters are pressure-monitored and can be replaced in just a few steps., Large-area, highly efficient cross-counterflow heat exchanger made of aluminum with up to 90% heat provision and energy-efficient EC motors. Can be dismantled in just a few steps. Optionally with integrated hot water heating register. ,