| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a storage type hot-water feed system which can instantaneously supply hot water without providing a complicated construction. SOLUTION: This storage type hot-water feed system feeds hot water to hot-water delivery plugs 11 provided at several points in a building through a hot-water feed pipe 10 disposed in the building. In this case, a hot-water storage tank 1 having a hot-water outlet port connected to the pipe 10 and a feed water port 1b connected to a feed water pipe 2 and a heater 6 provided in parallel with the tank 1 are provided, and a first circuit for performing a boiling operation by circulating the water of the tank 1 through the heater 6 and a second circuit for performing a heating operation by circulating the hot water of the pipe 10 through the heater 6 are provided, and after completion of the boiling of the tank 1, the upstream side of the pipe 10 is fluidly connected to the heater 6 through a first multidirectional switch valve 8, while the downstream side of the pipe 10 is fluidly connected to a circulation pump 7 through a second multidirectional switch valve 9.</p> |
