| 摘要 |
PURPOSE:To improve pleasantness of living space, particularly pleasantness when starting room heating by changing an air blow-out which is horizontal and directed to corners of a room to an air blow-out which is downwards and directed to corners of the room and further is downwards and directed in the central direction of the room when the temperature of blow-out air reaches a set temperature. CONSTITUTION:At first, when the temperature (t) of blow-out air is lower than a first set temperature t1, a middle motor 3 is rotated to the right, a left motor 9a to the left and a right motor 9b to the left, and then they are stopped. With those rotations the blow-out air flows horizontally and along the right side wall. If the temperature (t) of a thermistor 21 is higher than the first set temperature t1 and lower than a second set temperature t2, the middle motor 3 is rotated to the left, the left motor 9a to the left, and right motor 9b to the left and then they are stopped. With those rotations the blow-out air blows out downwards and to the right. Further, when the temperature (t) of the thermistor 21 is higher than the second set temperature t2, the middle motor is rotated to the left, the left motor 9a to the right, and the right motor 9b to the right and then they are stopped. The blow-out air blows out downwards and toward the center of the room.
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