Construction method for air outlet in hollow floor uses single operative to make access opening in room side of floor, install air distribution box, connected air pipe, and install air outlet, all from room side of floor

摘要

An opening is made in the floor covering a hollow chamber (4), or an existing opening is opened, an air distribution box (8) is inserted into the hollow space in the floor from the room side, a flexible air pipe (10) inside the hollow is connected to the box, also from the room side, and an air outlet (35) is installed and a flow connection (38) between distribution box and outlet is created. The flow connection device is fixed in the opening.