| 摘要 |
PURPOSE:To enable to keep securely air amount flowing into a heat exchanger by installing a motor for a fan capable of rotating reversely and a wind direction detector to control operation of the motor for the fan following wind direction at the outside of an air conditioner room. CONSTITUTION:A wind direction detector 7 is installed as an outside device of an air conditioner room. By a fan 2, air flows in normal direction C and at that time, when natural wind flows in direction A, the motor for the fan is judged to be in the range of reverse rotation and air flowing direction is made same as natural wind direction after a reverse rotation switch S for the motor FM of the fan is converted from a contact F to a contact R. When natural wind direction is B or D direction, the fan still rotates as before. Also, the output of the motor may be reduced corresponding to reduced amount of natural wind.
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