| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a refrigerating cycle device enabling the efficient simultaneous operation of cooling and heating even if the temperature difference between indoor and outdoor sides is large. <P>SOLUTION: A plurality of outdoor modules 20a, 20b including compressors 1, 2, flow passage changeover valves 5, 13, outdoor heat exchangers 3, 4 and decompression means 6, 14 and a plurality of indoor units 21a, 21b are connected by a high pressure gas pipe 8, a low pressure gas pipe 9 and a liquid pipe 10. The liquid pipe including the decompression means is connected to one end of the outdoor heat exchanger and the flow rate changeover valve is connected to the other end. In the first outdoor module 20a out of the plurality of outdoor modules, a discharge port of the compressor is connected to piping between the flow passage changeover valve and the high pressure gas pipe. The second outdoor module 20b includes a high pressure control valve 11 provided in piping connecting the flow passage changeover valve with the high pressure gas pipe and a low pressure control valve 12 provided in piping connecting the flow passage changeover valve with the low pressure gas pipe. During heat recovery operation, the decompression means is closed in the first outdoor module to make a refrigerant flow to the high pressure gas pipe and the decompression means is opened in the second outdoor module to make a refrigerant flow to the outdoor heat exchanger. <P>COPYRIGHT: (C)2010,JPO&INPIT |
