AIR CONDITIONER

摘要

PURPOSE:To execute comfortable air conditioning by accurately detecting clogging of a filter even if an operating environment of a blower is any environment. CONSTITUTION:A regulating amount required for the number of revolutions of a blower 1 detected by a blower speed detecting means 3 to reach the number of revolutions corresponding to an output set by a blower output setting means 2 is detected by blower output regulating means 4, and the amount is compared with a reference value by filter clogging judging means 9 thereby to judge clogging of the filter.