| 摘要 |
<p>PURPOSE:To provide a hot-water supplier, preventing the malfunction of a thermistor controlling a circulating pump for circulating hot-water and capable of being utilized for the defection of freezing of a hot-water circulating circuit. CONSTITUTION:The circulating circuit of hot-water is constituted of a circulating pump 27, a primary filter 30, a secondary filter 31, a tubular body 3, a supplying side connecting port 34, and a returning side connecting port 35, to which a thermistor 37 is attached. The returning side connecting port 35 is provided at the lowermost part of the circulating circuit and at the lower part of a main body 41. Accordingly, hot-water in a circulating pipe 36 is circulated by the natural convection thereof and abnormal heating of the part of the thermistor 37 will never be caused as far as the tubular body 3 is heated even when the circulating pump 27 is stopped. On the other hand, the position of the thermistor 37 is a part having the lowest temperature in the circulating circuit whereby the part whereat the thermistor 37 is positioned is frozen before the freezing of water in any part in the circulating circuit.</p> |
