Supply air terminal device

A supply air terminal device, comprising:

• a housing having top and side walls, and open below defining a supply air chamber from which supply air is provided and side chambers in which the supply air and circulated air from a room space is mixed;
• air guiding parts arranged on both sides of a central axis of said housing, a flow path leading from said side chamber to an exterior and below said housing and through which the mixed supply air and circulated air passes being defined in said side chamber and at least in part by said air guiding parts;
• a heat exchanger arranged below said supply air chamber and between said air guiding parts;
• nozzles arranged in connection with said supply air chamber to direct supply air from said supply air chamber into said side chambers and induce a flow of circulated air from the room space through said heat exchanger into said side chambers;
• a control device arranged in each of said side chambers placed after the heat exchanger and nozzles for controlling an induction ratio between a flow of supply air through said nozzles and the flow of circulated air through said heat exchanger induced by said nozzles,
• each of said control devices including a turning damper arranged in said side chamber after said heat exchanger in a direction of flow of the circulated air and to regulate opening and closing of the flow path through which the mixed supply air and circulated air passes from said side chamber to exterior of said housing such that said damper is effective to regulate a flow of mixed supply air and circulated air from said housing;
• and
• a piece which engages with said turning damper to cause rotational movement of said turning damper about a joint, said turning damper being rotatably supported about said joint, and said turning damper enabling an induction ratio Q2/Q1 between flows L2 and L1 to be controlled within a range of 2–6.