A management system comprising a first remote controller, a second remote controller and an information processing terminal, the first remote controller being configured to manage operation of a first air conditioner, the second remote controller being configured to manage operation of a second air conditioner, wherein the information processing terminal comprising: a conversion unit configured to obtain first setting data for managing the operation of the first air conditioner from the first remote controller and to convert the first setting data into second setting data for managing the operation of the second air conditioner, the second remote controller being able to use the second setting data; and a first terminal-side communication unit configured to send the second setting data by radio to the second remote controller; and the second remote controller comprising: a second apparatus-side communication unit configured to receive the second setting data by radio; and a management unit configured to manage the operation of the second air conditioner by using the second setting data, characterized in that the conversion unit being configured to convert the first setting data into the second setting data in accordance with a corresponding conversion rule which is identified, out of a plurality of conversion rules within a sub conversion database of the information processing terminal, by a combination of model information of the first air conditioner and a software version of the first remote controller, and model information of the second air conditioner and a software version of the second remote controller. a conversion unit configured to obtain first setting data for managing the operation of the first air conditioner from the first remote controller and to convert the first setting data into second setting data for managing the operation of the second air conditioner, the second remote controller being able to use the second setting data; and a first terminal-side communication unit configured to send the second setting data by radio to the second remote controller; and the second remote controller comprising: a second apparatus-side communication unit configured to receive the second setting data by radio; and a management unit configured to manage the operation of the second air conditioner by using the second setting data, characterized in that the conversion unit being configured to convert the first setting data into the second setting data in accordance with a corresponding conversion rule which is identified, out of a plurality of conversion rules within a sub conversion database of the information processing terminal, by a combination of model information of the first air conditioner and a software version of the first remote controller, and model information of the second air conditioner and a software version of the second remote controller. a second apparatus-side communication unit configured to receive the second setting data by radio; and a management unit configured to manage the operation of the second air conditioner by using the second setting data, characterized in that the conversion unit being configured to convert the first setting data into the second setting data in accordance with a corresponding conversion rule which is identified, out of a plurality of conversion rules within a sub conversion database of the information processing terminal, by a combination of model information of the first air conditioner and a software version of the first remote controller, and model information of the second air conditioner and a software version of the second remote controller.