Indoor unit for air conditioner

An indoor unit for an air conditioner, the indoor unit being configured to be installed in an air-conditioning target space and to be capable of changing a direction of an airflow that is blown out through a blow-out port (15), the indoor unit comprising:

• a control unit (40) configured to switch between a normal mode and a wide mode,
• wherein the control unit (40) is configured to switch to the wide mode when an air conditioning load is higher than a predetermined value and extend at least vertically a range that is to be reached by the airflow in the air-conditioning target space in the wide mode compared with the normal mode, and
• wherein, in the wide mode,
• when a range of 1600 mm high from a floor surface at a position away from the blow-out port (15) by any distance within a range of 1000 mm to 2000 mm on a front side is set as a reference height range, and among three ranges obtained by equally dividing the reference height range into three in a height direction, the range positioned on an upper side is set as a first range, the range positioned on a lower side is set as a second range, and the range positioned in a middle is set as a third range, and when the indoor unit for the air conditioner is provided on a side wall in the air-conditioning target space such that a center of the blow-out port (15) is at a position of 2000 mm above from the floor surface,
• an average wind velocity in the first range and an average wind velocity in the second range are substantially equal to each other, and an average wind velocity in the third range is equal to or more than 0.5 times and less than 1.1 times of the average wind velocity in the first range.