SUPPLY AIR TERMINAL DEVICE AND METHOD FOR REGULATING THE AIRFLOW RATE

The invention concerns a supply air terminal device ( 10 ) and a method for regulating the airflow rate. The supply air terminal device ( 10 ) comprises a heat exchanger ( 11 ), with which a circulated airflow (L2) conducted from a room can be either cooled or heated. The supply air terminal device ( 10 ) comprises a mixing chamber ( 12 ), into which mixing chamber ( 12 ) the air chamber's ( 15 ) nozzles ( 16 a1 , 16 a2 . . . 16 an) or a flow gap ( 16 ) open to conduct a primary airflow (L1) into the mixing chamber ( 12 ), whereby the primary airflow (L1) from the nozzles ( 16 a1 , 16 a2 . . . 16 an) or through the flow gap ( 16 ) as a flow (Qs) will induce a circulated airflow (L2) from the room (H) to flow through the heat exchanger ( 11 ) into the mixing chamber ( 12 ). The combined airflow (L1+L2) is conducted into the room (H). The supply air terminal device ( 10 ) comprises a regulator ( 100 ) bypassing the nozzles ( 16 a1 , 16 a2 . . . 16 an) or the flow gap ( 16 ) to regulate an airflow (Q3) passing through the regulator ( 100 ), with which, depending on the purpose of use of the room, it is possible to regulate the total airflow (SigmaQ) of the fresh primary air (Q3+Qs) supplied from outside the supply air terminal device.