| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve the problem of a hot water supply apparatus using solar energy, wherein as a hot water supply temperature control valve, two of a hot water supply temperature control vale and a boiler feed water temperature control valve are needed causing complicated piping, and further since a switching valve is provided in a water hot supply port of a boiler, outdoor specifications and special rainwater-proof structure are needed, and the appearance of pulling a wire and the executability of work for piping are inferior. <P>SOLUTION: In this hot water supply apparatus S1 using solar energy, main hot water supply pipes 9, 24, 22c, 22a connected between a hot water storing tank 7 and a hot water supply plug 17 are provided with temperature control means 11, 10a for mixing water. An auxiliary hot water supply pipe 22b for supplying hot water through a boiler 8 is connected to the downstream side of the temperature control means in the main hot water supply pipes. Switching means 15, 23 capable of selecting the supply of water from the temperature control means side to the boiler 8 or the supply of hot water to the hot water supply plug are provided on the upstream side of the auxiliary hot water supply pipe in the main hot water supply pipes. <P>COPYRIGHT: (C)2003,JPO</p> |
