VARIABLE AIR VOLUME AIR CONDITIONER AND METHOD OF THE SAME

摘要

PURPOSE: A variable air volume air conditioner and a method of the same are provided to keep necessary amount of fresh outside air appropriately for fluctuation of amount of oxygen dioxide in a room and to supply more accurate and stable amount of air despite fluctuation of air volume due to change of indoor load by applying mixed chamber pressure control method. CONSTITUTION: An air conditioner includes a first sensor(58) installed on an end of a ventilation duct ventilating a room to measure concentration of oxygen dioxide, temperature and humidity at set intervals; a second sensor(54) placed on an exhaust/ventilation chamber to measure pressure in the exhaust/ventilation chamber at set intervals; a third sensor(64) placed in an outside air/mixed air chamber to measure pressure in the outside air/mixed air chamber at set intervals; a fourth sensor(78) placed on an indoor end of an air supply duct to measure static pressure; a fifth sensor(72) measuring temperature and humidity of outside air; and a controller receiving measurements from the sensors to control.