| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a refrigerant circuit device capable of excellently performing a cooling/heating operation while reducing power consumption without inviting the enlargement of an installation space. <P>SOLUTION: The refrigerant circuit device includes: a main route 20 configured by connecting an intra-container heat exchanger 24, a compressor 21 and an extra-container heat exchanger 22; a high pressure refrigerant introduction route 30 for introducing a refrigerant compressed in the compressor 21 by opening high pressure introduction valves 321, 322 and supplying it to a predetermined intra-container heat exchanger 24; return routes 40, 50 for returning the refrigerant condensed in the intra-container heat exchanger 24 through a heating side heat exchanger 42 to the main route 20; and a controller 80 for, when it is determined that the amount of the refrigerant passing through each intra-container heat exchanger 24 via the high pressure refrigerant introduction route 30 is insufficient, allowing the refrigerant to pass through a left intra-container heat exchanger 24c by keeping the predetermined high pressure introduction valve 322 open and regulating the passing of the refrigerant through a middle intra-container heat exchanger 24b by closing the high pressure introduction valve 321. <P>COPYRIGHT: (C)2012,JPO&INPIT |
