| 摘要 |
PROBLEM TO BE SOLVED: To ensure a specified air volume of each air conditioning unit by conducting correction of the number of revolutions of a motor in relation to an external static pressure by one centralized controller, in regard to the centralized controller of air conditioning units which controls the air conditioning units in a plurality as to a heating load on a communications apparatus, a computer or the like. SOLUTION: An external static pressure setting switch 13 is provided in a centralized controller 11. A pressure switch is provided in each of air conditioning units 3 and 4, instead of the external static pressure setting switch, so that setting of an external static pressure be conducted automatically. Besides, an air volume setting device for setting an optimum air volume is provided in the centralized controller 11. |
