Patent ID: 9237680
Filing Date: 2016-01-12
CPC Classification: F24F,H05K

Claim Text:
1. An air conditioning system for managing a server room, in which a server is installed between first and second spaces, and supply air flowed into the first space is heated by heat generation of the server, and flows out as return air via the second space, thereby to control air conditioning in the server room, the air conditioning system comprising: a cold air generation device that generates cold air satisfying a predetermined condition; an air supply fan that flows the cold air generated by the cold air generation device into the first space; a first differential pressure gauge that measures a differential pressure of a static pressure of the second space with respect to a static pressure of the first space; a return air thermometer that measures a temperature of the return air flowed out from the second space, a first control value decision unit that decides a first control value of a rotating speed of the air supply fan in order to prevent air from flowing from the second space to the first space based on the differential pressure measured by the first differential pressure gauge, a second control value decision unit that decides a second control value of the rotating speed of the air supply fan in order to lower a temperature of the return air when the temperature of the return air measured by the return air thermometer is higher than a set threshold value, a first output unit that outputs a control set value based on a larger control value between the first control value and the second control value, a first rotating speed control unit that controls based on the control set value output by the first output unit.