| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner capable of improving heating start-up performance or defrost restoration performance.SOLUTION: An air conditioner includes: a compressor to compress a refrigerant; an indoor heat exchanger where the refrigerant compressed by the compressor flows when heating is operating; an electrically-driven expansion valve where the refrigerant condensed by the indoor heat exchanger flows; an outdoor heat exchanger where the refrigerant expanded by the electrically-driven expansion valve flows; an outdoor temperature detection means to detect outside air temperatures; and a control section to control the opening degree of the electrically-driven expansion valve. The control section controls the opening degree of the electrically-driven expansion valve to fix at a set time and a set opening degree when operation of heating starts to change the set opening degree depending on the difference between the temperature detected by the outdoor temperature detection means at the time of starting the heating operation and a temperature of gas saturation on an intake side of the compressor. |
