| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable the supply of hot water of different temperature ranges to a first use side and a second use side respectively, using only a dual refrigeration cycle apparatus as a stand-alone system. <P>SOLUTION: The dual refrigeration cycle apparatus includes: a low-temperature side refrigeration cycle 6a having a low-temperature side compressor 1a and a heat source side heat exchanger 3 that are connected by a high-temperature side refrigerant piping, and a high-temperature side refrigeration cycle 6b having a high-temperature side compressor 1b and a first use side heat exchanger 7 that are connected by a high-temperature side refrigeration piping. An intermediate heat exchanger 5, which can perform heat exchange between low-temperature side refrigerants and high-temperature side refrigerants, is disposed in the low-temperature side refrigerant piping and the high temperature side refrigerant piping. A second use side heat exchanger 8 is disposed, which is connected with the low-temperature side refrigerant piping in parallel with the intermediate heat exchanger. A flow control means is disposed, which controls the flow rate of the low-temperature side refrigerants supplied to a second use side heat exchanger and the intermediate heat exchanger. <P>COPYRIGHT: (C)2013,JPO&INPIT |
