| 摘要 |
<p>To obtain an air-conditioning apparatus capable of improving safety by not circulating a refrigerant to a vicinity of an indoor unit and improving maintainability. An air-conditioning apparatus 100 includes a heat medium circuit B that circulates a heat medium different to the refrigerant on a heat source side. The heat medium circuit B includes, for example, heat exchangers related to heat medium 15, use side heat exchangers 26, first heat medium flow switching devices 22 and second heat medium flow switching devices 23 that change passages of the use side heat exchangers 26, heat medium flow control devices 25 that controls a heat medium amount in the corresponding use side heat exchangers 26. An on-off device 52 is each provided on the upstream side of the heat medium flow control device 25 and on the downstream side of the second heat medium flow switching device 23 and a first backflow prevention device 40 is each provided on the downstream side of the heat medium flow control device 25 and on the upstream side of the first heat medium flow switching device 22.</p> |
