| 摘要 |
PURPOSE:To prevent a reduction in temperature of hot water and also to facilitate the piping work by providing a check valve and a separator in a hot water feed pipe for bathtub in the downstream from a closure valve, the hot water feed pipe being connected to a circulation pipe in the body of an automatic boiler for bath. CONSTITUTION:Hot water heated to a high temperature by a heat exchanger for hot water delivery flows into a hot water feed pipe 3 to a bathtub and flows into an upper circulation pipe 9 in a boiler 1 through a check valve 23 and a separator 24. When filled to a set water level, a water level sensor 6 of an automatic feed water control section 17 is actuated to close a closure valve 7 through a hot water feed controller 5, and at the same time, a circulation pump 11 is operated to circulate water in a bathtub 4. When the set hot water temperature is exceeded, a temperature sensor 14 actuates so as to close a gas cock 12 for bath through a boiling controller 10, and also causes the circulation pump 11 to be shut down. |
