MANAGEMENT DEVICE

An equipment management system (1) includes a control terminal (20a to 20c) that transmits state information related to an air conditioner (10a to 10i) and a management apparatus (30). The management apparatus (30) includes a calculation unit (341), a load determining unit (343), a reduction control unit (344), and a communication unit (33). The calculation unit (341) executes calculation of information processing that is based on information received from the control terminal (20a to 20c). The load determining unit (343) determines a load level corresponding to a load of the information processing by the calculation unit (341). The reduction control unit (344) executes reduction control to reduce the load on the calculation unit (341) in accordance with the load level. The communication unit (33) transmits the load level to the control terminal (20a to 20c). The control terminal (20 to 20c) includes a processing unit (23) that changes, in accordance with the load level, a communication condition of equipment information to be transmitted to the management apparatus (30).