HOT-WATER SUPPLY DEVICE

摘要

PURPOSE:To contrive to supply immediately the hot-water after opening a tap of a hot-water supply port and decrease the temperature changing of the hot-water by a method wherein a hot-water storage tank having a heating device and a bypass pipe are connected in parallel to the terminal of a hot-water supply circuit on a main hot-water supply heat source unit in a central hot-water supply system. CONSTITUTION:A hot-water storage tank 9 installing a heating device therein is arranged in the vicinity of a hot-water supply port of a hot-water supply piping where a main hot-water supply heat source unit 1 and a terminal hot-water supply port 2 are connected. A cold-water introducing pipe 10 and a hot-water supply pipe 11 for the hot-water storage tank 9 are connected in parallel by a bypass pipe 12. By opening a tape of a hot-water supply port 2, a cold-water introduced through a bypass pipe 12 from a hot-water supply piping 3 and a high temperature hot-water from the hot-water storage tank 9 are mixed with the flow rate ratio at one versus one in the hot-water supply pipe 11, accordingly, a warm water can be obtained from the bigining of hot-water supply. At the end of exhausting of the high temperature hot-water in the hot-water storage tank 9, the high temperature water from the main hot-water supply heat source unit 1 is flowed into the hot-water storage tank 9 and the bypass pipe 12, the mixed hot-water temperature in the hot-water supply pipe 11 is raised.