| 摘要 |
In an air conditioning system for rooms in which the cold and hot air is admitted by means of two ducts leading to an air control unit which has an exhaust connected with the room or area to be conditioned the air streams are to be controlled with the least possible waste of energy. To this end the air control unit (10) is designed so that the baffles (20) controlling the admittance of hot and cold air respectively to the unit are alternately opened depending on the heating or cooling demand without the two baffles being open at the same time. Thus, the two air streams are not mixed to any essential extent during the normal operation of the system. |
