Fremgangsmåte og anordning for å regulere en spreder

The diffuser (50) is located in connection with the ceiling (12) of an air-conditioned space (10) and it comprises an air duct (51), in connection with which guiding devices (52, 60, 61) are fitted, with the aid of which the airflow (LA, LB) discharging from the air duct (51) into the airconditioned space (10) is guided in the direction of the ceiling (12) out of the diffuser (50). The temperature caused by a heat source outside the heating and cooling system of the air-conditioned space (10) is measured by at least one temperature sensor (20), whose measurement signal is conducted to a control unit (30), which is used for controlling an actuator (40). The actuator (40) controls a control device (53a, 53b, 55, 57, 60), which is mounted in connection with the diffuser's (50) air duet (51) and which based on the measured temperature controls an asymmetric throw pattern for the airflow (LA, LB) discharging from the diffuser (50) into the air-conditioned space (10).