| 摘要 |
<p>An operation control method of a grill lifting unit is provided to set a maximum lowering position of the grill lifting unit as desired by a user and control the unit to stop lowering operation in response to external impact applied to a suction grill, thereby improving the convenience of use and safety. An operation control method of a grill lifting unit includes the steps of checking the insertion state of a suction grill in a front panel(S100), lowering the suction grill by a preset automatic lowering distance by drawing a wire wound on a roller part(S200), lifting the suction grill by re-winding the wire(S300), sensing the deviation of the suction grill from the front panel by the change of tension force applied to the wire(S400), checking the insertion state of the suction grill in the front panel secondarily(500), carrying out standby mode for the possible operation of an indoor unit of an air conditioner(S600).</p> |
