| 摘要 |
PURPOSE:To prevent an inhavitant from feeling the feel of cold air upon the rise-up of heating operation and improve the comfortable property of air conditioning, by operating a blow-off port opening and closing means in conjunction with a communicating passageway opening and closing means. CONSTITUTION:When heating operation is started, the blow-off ports 3 are closed by respective airflow direction deflecting panels 6 while a damper 8 is located in a condition that a communicating passageway 7 is opened. Air, sucked through a suction port 2, passes an indoor heat exchanger 4 and is circulated from a fan 5 through the communicating passageway 7 and again the indoor heat exchanger 4 to repeat the circulation through this route. When the temperature of the air has risen to a predetermined temperature, a control unit 12, receiving a detecting signal from a temperature detecting element 11, drives respective driving sources 9, 10 to close the communicating passageway 7 by a damper 8 operated in conjunction with respective airflow direction deflecting panels 6 while respective airflow direction deflecting panels 6 open the blow-off port 3. Cold airflow upon the rise-up of heating operation is circulated in the main body 1 of an air-conditioning machine in such a manner; therefore, the comfortableness of air conditioning may be improved. |
