Air conditioning system and control method

Abstract

An air conditioning system of an embodiment includes an indoor air handling unit controller and an outdoor air handling unit controller. The indoor air handling unit controller is configured to increase and decrease an operating capacity of the indoor air handling unit. The outdoor air handling unit controller is configured to increase and decrease an operating capacity of the outdoor air handling unit.

What is claimed is: 
     
         1 . An air conditioning system including an indoor air handling unit and an outdoor air handling unit, comprising:
 an indoor air handling unit controller configured to
 increase an operating capacity of the indoor air handling unit in a case in which an operating capacity of the outdoor air handling unit is greater than or equal to a first threshold value and the operating capacity of the indoor air handling unit is able to be increased, and 
 decrease the operating capacity of the indoor air handling unit in a case in which the operating capacity of the outdoor air handling unit is less than a second threshold value that is lower than the first threshold value and the operating capacity of the indoor air handling unit is able to be decreased; and 
   an outdoor air handling unit controller configured to
 increase the operating capacity of the outdoor air handling unit in a case in which the operating capacity of the indoor air handling unit is greater than or equal to a third threshold value and the operating capacity of the outdoor air handling unit is able to be increased, and 
 decrease the operating capacity of the outdoor air handling unit in a case in which the operating capacity of the indoor air handling unit is less than a fourth threshold value that is lower than the third threshold value and the operating capacity of the outdoor air handling unit is able to be decreased. 
   
     
     
         2 . An air conditioning system including an indoor air handling unit and an outdoor air handling unit, comprising:
 an indoor air handling unit controller configured to
 increase an operating capacity of the indoor air handling unit in a case in which a difference between an operating capacity of the outdoor air handling unit and the operating capacity of the indoor air handling unit becomes greater than or equal to a predetermined value and the operating capacity of the indoor air handling unit is able to be increased, and 
 decrease the operating capacity of the indoor air handling unit in a case in which the difference between the operating capacity of the outdoor air handling unit and the operating capacity of the indoor air handling unit becomes less than the predetermined value and the operating capacity of the indoor air handling unit is able to be decreased; and 
   an outdoor air handling unit controller configured to
 increase the operating capacity of the outdoor air handling unit in a case in which a difference between the operating capacity of the indoor air handling unit and the operating capacity of the outdoor air handling unit becomes greater than or equal to a predetermined value and the operating capacity of the outdoor air handling unit is able to be increased, and 
 decrease the operating capacity of the outdoor air handling unit in a case in which the difference between the operating capacity of the indoor air handling unit and the operating capacity of the outdoor air handling unit becomes less than the predetermined value and the operating capacity of the outdoor air handling unit is able to be decreased. 
   
     
     
         3 . A control method of an air conditioning system including an indoor air handling unit and an outdoor air handling unit, comprising:
 increasing an operating capacity of the indoor air handling unit in a case in which an operating capacity of the outdoor air handling unit is greater than or equal to a first threshold value and the operating capacity of the indoor air handling unit is able to be increased, and decreasing the operating capacity of the indoor air handling unit in a case in which the operating capacity of the outdoor air handling unit is less than a second threshold value that is lower than the first threshold value and the operating capacity of the indoor air handling unit is able to be decreased; and   increasing the operating capacity of the outdoor air handling unit in a case in which the operating capacity of the indoor air handling unit is greater than or equal to a third threshold value and the operating capacity of the outdoor air handling unit is able to be increased, and decreasing the operating capacity of the outdoor air handling unit in a case in which the operating capacity of the indoor air handling unit is less than a fourth threshold value that is lower than the third threshold value and the operating capacity of the outdoor air handling unit is able to be decreased.   
     
     
         4 . A control method of an air conditioning system including an indoor air handling unit and an outdoor air handling unit, comprising:
 increasing an operating capacity of the indoor air handling unit in a case in which a difference between an operating capacity of the outdoor air handling unit and the operating capacity of the indoor air handling unit becomes greater than or equal to a predetermined value and the operating capacity of the indoor air handling unit is able to be increased, and decreasing the operating capacity of the indoor air handling unit in a case in which the difference between the operating capacity of the outdoor air handling unit and the operating capacity of the indoor air handling unit becomes less than the predetermined value and the operating capacity of the indoor air handling unit is able to be decreased; and   increasing the operating capacity of the outdoor air handling unit in a case in which a difference between the operating capacity of the indoor air handling unit and the operating capacity of the outdoor air handling unit becomes greater than or equal to a predetermined value and the operating capacity of the outdoor air handling unit is able to be increased, and decreasing the operating capacity of the outdoor air handling unit in a case in which the difference between the operating capacity of the indoor air handling unit and the operating capacity of the outdoor air handling unit becomes less than the predetermined value and the operating capacity of the outdoor air handling unit is able to be decreased.