In the case where selection of an icon representing an air conditioner is sensed in a region corresponding to a first room on the floor plan that is larger than a predetermined area, the region corresponding to the first room is switched to an adjustment region for changing the set temperature of the air conditioner. In the case where selection of the icon representing the air conditioner is sensed in a region corresponding to a second room on the floor plan that is equal to or smaller than the predetermined area, an adjustment screen for changing the set temperature of the air conditioner installed in the region corresponding to the second room is displayed on the display screen.