Abstract: An air-conditioning remote controller allowing a user to intuitively grasp a setting status of an air-conditioner and to use the controller commonly between a plurality of models of the main body of the air-conditioners, the air-conditioning remote controller including an input unit to input setting values for setting items relating to air-conditioning control, and a display unit having a predetermined area to display a plurality of icons thereon and displaying setting values and icons depending on the number of taps, wherein the display unit changes the number of displayable icons depending on the number of taps for the main body of the air-conditioner controlled using the setting values, and also displays the icons with the larger size per tap as the number of the icons in the air-conditioner is getting smaller.

Abstract: In order to determine configuration information of an air conditioner, to display a cause of a malfunction of the air conditioner during a trial operation and maintenance, and to easily check, on the mobile terminal, repair work based on determination results, a maintenance system of the air conditioner includes a display device that displays configuration information, a cause of a malfunction, and a repair work procedure of the air conditioner in which an outdoor device provided with an outdoor heat exchanger and an indoor device provided with an indoor heat exchanger are connected via refrigerant piping and a refrigerant is circulated by a compressor, and the display device includes a control unit that determines a configuration of the outdoor device or the indoor device of the air conditioner, a control unit that determines whether or not a malfunction occurs, and a display unit that displays a repair work procedure.

Abstract: An air-conditioning remote controller allowing a user to intuitively grasp a setting status of an air-conditioner and to use the controller commonly between a plurality of models of the main body of the air-conditioners, the air-conditioning remote controller including an input unit to input setting values for setting items relating to air-conditioning control, and a display unit having a predetermined area to display a plurality of icons thereon and displaying setting values and icons depending on the number of taps, wherein the display unit changes the number of displayable icons depending on the number of taps for the main body of the air-conditioner controlled using the setting values, and also displays the icons with the larger size per tap as the number of the icons in the air-conditioner is getting smaller.