Central box systems with heat recycling are usually installed in commercially used, larger units such as offices, administration buildings, schools, old-age homes and large multi-family houses. They are characterised by a design without thermal bridges and a heat recycling level that is high for box systems. All systems are delivered with controls for constant pressure and volume flow.
Box system 800 to 4000 m³/h, external installation
These weather-proof ventilation systems for outside installation (DA) of the series Zehnder ComfoAir 800, 1500, 3200 and 4000 (DA) also create a pleasant and healthy indoor climate for larger residential and commercial buildings. They combine highest comfort, simple maintenance and a high level of efficiency. The nominal air flows extend from 800 m³/h to 4500 m³/h at an external pressure of 200 Pa.
Box system 800 to 4000 m³/h, internal installation
The ventilation systems for internal installation of the series Zehnder ComfoAir 800, 1500, 3200 and 4000 create a pleasant and healthy room climate, also in larger residential and commercial buildings. They combine highest comfort, simple maintenance and a high degree of efficiency. The nominal air flows extend from 800 to 4500 m³/h at an external pressure of 200 Pa.
