| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner which when there exists no person, is capable of sufficiently achieve energy saving operation without sacrificing comfort when a person enters into a room again.SOLUTION: The air conditioner includes a compressor 42 for compressing and discharging a refrigerant, a human body detection sensor 35 for detecting existence of a person and a control part 51 for controlling drive/stop and a rotational frequency of the compressor 42. The control part 51 determines absence of a person from a detection result of the human body detection sensor 35, and after lapse of predetermined waiting time, gradually changes a target set temperature with the lapse of time and transfers an operation mode to an energy saving operation mode repeating a combination of drive and stop of the compressor 42 several times based on comparison of a room temperature with the target set temperature. |
