| 摘要 |
The present invention discloses a ceiling type air-conditioner, in which motor velocity of indoor machine is set according to setting conditions of an air-conditioner, and its control mehtod. The invention disclosed is characterized in that after completing assignments of an air-conditioner within a ceilling, a ventilation motor is supplied with maximum power and runs with maximum rating, and a series of driving velocity values corresponding to a plurality of velocity enactment instructions offered by users are enacted, on the basis of the allowable upper limit velocity of a motor which is smaller than the maximum velocity of a motor which is running in the maximum rating.
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