| 摘要 |
<p>PURPOSE:To make it possible to supply hot water of a predetermined temperature immediately from the starting of use by providing a bypass passage communicating an inlet path of a hot water apparatus with an outlet path thereof, and a secondary joined point at a point where the downstream of the joined point of said bypass passage and a water side pipeline, connecting a terminal hot water supply port to the downstream of said secondary joined point, and disposing variable turn-down portions in a first flowpath system and a second flowpath system which flow along the bypass passage. CONSTITUTION:The hot water supplying device has an inlet path 8 at the lower part of a hot water storage tank 7A provided in the downstream of a main heat source apparatus 1, and an outlet path 9 at the upper part thereof and further a heating member 10 in the inner part thereof. A bypass path 11 is branched from the inlet path 8, connected to the outlet path 9 at a bypass passage joined point 12, further, combined with the water side pipeline 4 at a secondary joined point 13, and guided to a terminal hot water supply port 14. A temperature detecting portion15 is provided in the secondary joined point 13, and a hot water side turn-down portion 16 for controlling the hot water side flow amount based on a signal from the temperature detecting portion 15 and a water side turn-down portion 17 for controlling the water side flow amount are controlled to assume set temperatures. Furthermore, a first variable turn-down portion 18A is disposed in a first flowpath system 18 and a second variable turndown portion 19A is disposed in a second flowpath system 19.</p> |
