AIR CONDITIONER

PROBLEM TO BE SOLVED: To obtain an air conditioner in which adverse effect of disturbance can be suppressed. SOLUTION: When cooling operation is started, initial setting of cooling operation is performed and, upon elapsing a predetermined time, outdoor air temperature G and indoor air temperature S are taken in and stored. Subsequently, variation of outdoor air temperature ΔG, difference e between the indoor air temperature S and a set temperature, and fluctuation Δe of the difference e are calculated (Steps 200-206). Furthermore, a difference ΔHzff being used in feedforward control is determined from a previously prepared table based on the outdoor air temperature G and the variation of outdoor air temperature ΔG, a difference ΔHzfb being used in feedback control is determined based on the difference e and the fluctuation Δe of the difference e, and the target frequency of input power to a motor for driving a compressor is calculated and set based on the differences ΔHzff, ΔHzfb (Steps 208-212).