| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reservoir type hot water supply system capable of preventing supply of unintended high-temperature hot water and also preventing reduction in heating efficiency (performance factor) in boiling up in a heating system using a heat pump cycle. <P>SOLUTION: This reservoir type hot water supply system comprises a first hot water pipe 5 for supplying hot water from the upper part of a hot water storage tank 1, and one or more second hot water supply pipes 20 for supplying hot water from about the middle of the hot water storage tank 1. This system further comprises a selector valve 19 for switching either first water supplied from the first hot water supply pipe 5 or second water supplied from the second hot water supply pipe 20; a mixing valve 2 for mixing the water supplied after switching the selector valve 19 with city water to generate hot water of a desired temperature; an opening and closing valve 24 located on the downstream of the mixing valve 22 to perform supply and stop of the generated hot water; and a control device 30 for controlling the operation of the whole hot water supply system such as the selector valve 19, the mixing valve 22, the opening and closing valve 24 and the like, in which the opening and closing vale 24 is temporarily closed before the switching operation of the selector valve 19. According to this structure, the problem in the reservoir type hot water supply system using the heat pump cycle that when the temperature of the hot water supplied from a hot water storage tank to an outdoor machine is high, the heat efficiency (performance factor) in boiling up of the heat pump cycle is deteriorated can be solved. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
