| 摘要 |
An air conditioner having a duct fan (21), wherein an indoor temperature sensor (31) to detect an indoor temperature Ti and an outdoor temperature sensor (32) to detect an outside air temperature T0 are installed so as to control the introduction of outside air according to a relation between the indoor and outdoor temperatures, and a CO2 sensor (33) is installed so as to introduce outside air positively only when the indoor air is contaminated to a specified level or higher for appropriate ventilation, whereby outside air intake is controlled with saved energy and at low cost by suppressing increase in heat load but without comproming comfortableness. |
