| 摘要 |
<p>PURPOSE:To supply a low cost and maintenance-free hot water storage type hot water heater which is capable of minimizing waste water, and installing a hot water storage tank rationally in a dwelling house. CONSTITUTION:There are installed a safety vale 12 between the hot water storage tanks 7 to 9 and the pump 10 and the heater 11 and the outlet of the pump 10 from the inlet of the pump 10 and hot water feed pipelines 13 to 15 which are branched on the outlet side of a heater 11 and connected to the upper part of hot water storage tanks 7 to 9 and solenoid valves 16 to 18 and water inlet pipelines 19 to 21 which are branched on the inlet side of a pump 10 and connected to the lower parts of the hot water storage tanks 7 to 9 by way of solenoid valves 22 to 24 and water supply pipelines 26 to 28 which are connected to the lower parts of the hot water storage tanks 7, 8 and 9 by way of a pressure reducing valve 25 and a hot water temperature control means 33 which controls the rotary speed of the pump 10 from a detected temperature by a hot water temperature detector 32. The pump 10, the heater 11, the safety valve 12, the pressure reducing valve 25 and the first solenoid valves 16 to 18 and the sixth solenoid valves 22 to 24 and the hot water temperature control means 33 are housed in a heat source unit 34 where the hot water boiled up with the heat source unit 34 is distributed and stored in the hot water storage tanks 7 to 9.</p> |
