| 摘要 |
PROBLEM TO BE SOLVED: To make air reach almost the floor following heat exchange of the air even when the indoor temperature has reached the vicinity of a set point. SOLUTION: When the indoor temperature Ti is in a prescribed range including a set temperature Tm (102, 104; Y), the supply of air is directed most downward (108) and, when the set air volume is in a weak-draft mode or lower, a shift to an air-volume node is effected (110; Y, 112). The switching frequency of an inverter circuit is controlled (116-122) in a manner of putting the coil temperature Tc of the coil in an indoor heat exchanger in a prescribed range including a set temperature T40. |
