| 摘要 |
PURPOSE:To enable a defrosting operation to be performed in such a degree as preventing a decrease in room temperature for a user to feel uncomfortable by a method wherein in case that a defrosting signal is outputted from a frosting sensor means during ON/OFF control under a heating operation, the heating operation is forcibly carried out for a specified period of time and thereafter the defrosting operation is started. CONSTITUTION:When a defrosting signal is inputted at a point A during the time of turning-ON of the compressor, a forced heating operation is started at the point A, the heating operation is terminated at the point B where T1+alpha (min) is elapsed from the start point D of the heating operation, and then the defrosting operation is started. The defrosting operation is terminated at the point C, thereafter the air conditioner is returned again to its ON/OFF control condition. When the defrosting is inputted at the point E during a turning-OFF of the compressor, a forced heating operation is started, while said operation is carried out from the point E by a time of T1'+beta (min), terminated at the point F, and the defrosting operation is carried out from the point F to the point G. Extended time alpha during a turning-ON and extended time beta during the turning-OFF may be applied for both cases of the same value or different value and they are set in advance. |
