AIR CONDITIONING SYSTEM AND AIR CONDITIONING CONTROL METHOD FOR SERVER ROOM MANAGEMENT

In air-conditioning system in which a server is placed between a first space and a second space and in which supply air entering into the first space is heated by heat generation of the server and flown out through the second room as return air, if it is determined that an air state of the outside air is within an air state range greater than an upper limit of the target range of the absolute humidity, or if it is determined that the state of the outside air is within an air state range greater than an upper limit of an enthalpy range corresponding to an air state within the target ranges of the temperature and the absolute humidity and greater than the upper limit of the target range of the temperature, the air state of the outside air and an air state of the return air are compared with each other. Then, in accordance with a result of the comparison, it is determined whether to set the air-conditioning control content so that a cooler performs cooling processing by minimizing an amount of introduction of the outside air or whether to set the air-conditioning control content so that the cooler performs cooling processing by maximizing the amount of introduction of the outside air.