| 摘要 |
Headwind (R) is detected based on the deviation between the detected rotation speeds of motors (11, 12) for driving blowers (7, 8) and a target rotation speed. At a strong headwind, an operation is shifted to a headwind mode to stop the driving of the blowers (7, 8) and allow them to be naturally rotated by headwind (R). Air streams (R1) by the headwind (R) flow through a duct (3) to ensure an air volume passing through a heat exchanger (6) and radiation fins (9).
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