An overhead window system comprising a skylight window and a ventilation unit, and method for operating the ventilation unit in the skylight window

摘要

The roof window (1) has a frame (2) defining a frame plane, and a sash (3). The roof window (1) forms part of a roof window system further comprising a ventilation assembly (100). The ventilation assembly (100) comprises a housing (150) having predefined dimensions and accommodating said ventilation unit or units (110, 120). Each ventilation unit includes a set of flow channels (1511, 1521) and a set of transition channels (1611) having a first connecting end connected, in a mounted condition, to the set of flow channels (1511, 1521) and a second connecting end connected, in the mounted condition, to the ventilation device of the roof window (1).