| 摘要 |
PURPOSE:To make it possible to blow off air which has received sufficient heat- exchange in a small amount through a primary blow-off port and in a large amount through another blow-off port by providing a suction port and a plurality of draft ports, disposing an air guide on the downstream side surface of the heat exchanger, and providing a communicating port connecting vent passages on the downstream side of the air guide to each other. CONSTITUTION:A sufficient heat-exchange ability can be displayed by flowing a large amount (or a small amount) of air which has passed the heat exchanger to the blow-off ports through which a large amount (or a small ambunt) of air is flowed, among a plurality of blow-off ports. In a case where a large amount of hot air is discharged in a larger amount through the blow-off port 22a than the amount of air discharged through th blow-off port 22b, the rotation number of a fan 24b is set to a value which is higher than that of a fan 24a. Indoor air which has been sucked up through the suction port 21 is heated in the heat exchanger 23 and dispersed to the vent passage 29a and the vent passage 29b. A part of indoor air flowing downwardly within the vent passage 29a is induced to the vent passage 29b through a gap 32, and is mixed with indoor air within the vent passage 29b, thus being discharged through the blow-off port 22b. |
