| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an indoor unit that suppresses a decrease in airflow because the airflow drops though noises can be prevented by providing notches in vanes of a fan of the indoor unit and, when a fin pitch in a heat exchanger is partly narrow, the airflow becomes too small due to large ventilation resistance in the narrow fin-pitch part, and the same problem occurs when parts different in ventilation resistance are arranged in the lengthwise direction of the fan even in units other than the heat exchanger. <P>SOLUTION: The fan has a plurality of vaned wheels 21 each having at least two vanes and provided at the same axis of revolution, and each vaned wheel 21 includes a vaned wheel 21A and a vaned wheel 21B, which have the different number of vane notches in the vane. <P>COPYRIGHT: (C)2012,JPO&INPIT |
