| 摘要 |
PURPOSE: To readily meet the change of an air-conditioning system. CONSTITUTION: An air-conditioning system is provided with an air supply fan F1, air circulating fan F2, an outside air duct D1, an exhaust duct D2 and an air circulating duct D3 for supplying again a part of air sucked from a room to an air conditioner, and also provided with an outside air damper MD1, an exhaust damper MD2, and an air circulating damper MD3 on the ducts. In the air-conditioning system, a control means is provided for controlling the opening degree of each damper to obtain the appropriate values of the quantity of outside air, the quantity of exhaust air and the quantity of circulated air based on the rate of outside air cooling while a prescribed quantity or more of outside air is maintained, based on the designed quantity of air of the air supply fan F1 and the air circulating fan F2 and the designed quantity of air of each duct. In order to calculate the opening degree of the respective dampers MD1 to MD3 from the values of the designed quantity of air of the air supply fan F1 and the air circulating fan F2 and the designed quantity of air of the respective ducts D1 to D3, these calculation parameters may be changed relative to the change of the system. |
