AIR CONDITIONER

To solve a problem of a conventional air conditioner performing refrigerant recovery operation at stopping or at refrigerant leakage that sufficient safety and reliability of the refrigerant recovery operation cannot be attained.SOLUTION: An air conditioner includes first refrigerant shut-off means, second refrigerant shut-off means, state detecting means for acquiring information for estimating a state of a refrigerant in an indoor unit, refrigerant storage means disposed between an expansion valve and the first refrigerant shut-off means, and control means for controlling operation of the device. After the refrigerant is recovered in an outdoor unit and the second refrigerant shut-off means is closed, the expansion valve is closed, and after the first refrigerant shut-off means is opened, the first refrigerant shut-off means is closed again.SELECTED DRAWING: Figure 1 【課題】従来の停止時や冷媒漏洩時に冷媒回収運転を行う空気調和機では、冷媒回収運転の安全性や信頼性に課題があった。【解決手段】 第１冷媒遮断手段と、第２冷媒遮断手段と、室内機の冷媒の状態を推定するための情報を取得する状態検知手段と、膨張弁と前記第１冷媒遮断手段との間に配置された冷媒貯留手段と、装置の動作を制御する制御手段を備え、冷媒を前記室外機に回収し、前記第２冷媒遮断手段を閉めた後に、前記膨張弁を閉状態とし、前記第１冷媒遮断手段を開状態とした後、再び前記第１冷媒遮断手段を閉状態とする。【選択図】 図１