| 摘要 |
<p>In an air conditioner having a function to judge the adequacy of the refrigerant quantity in a refrigerant circuit, a period of time for a refrigerant quantity judging operation is reduced and the refrigerant quantity judging operation is reliably completed. An air conditioner (1) includes a refrigerant circuit (10), operation controlling means, stability judging means, refrigerant quantity judging means, and condition changing means. The operation controlling means is capable of performing a refrigerant quantity judging operation to control constituent equipment to reach a predetermined target control value. The stability judging means judges whether or not the refrigerant quantity judging operation has stabilized. The refrigerant quantity judging means judges the adequacy of the refrigerant quantity in the refrigerant circuit (10) by using an operation state quantity of constituent equipment or refrigerant flowing in the refrigerant circuit (10) when it is judged that the refrigerant quantity judging operation has stabilized. The condition changing means changes the target control value in the refrigerant quantity judging operation when it is judged that the refrigerant quantity judging operation has not stabilized.</p> |
