| 摘要 |
PURPOSE:To stabilize a supplying hot-water temperature by a method wherein the temperature of water entering is effected a sampling to memorize for every predetermined times and a burner calorie is controlled based on the temperature of water entering or the sampling time, retroacted in inverse proportion for the flow amount of the water entering or the suppling hot-water. CONSTITUTION:The output of a water temperature sensor 3 is effected the sampling to be memorized to a shift-register 4 for every predetermined times. On the other hand, the sampling time of a data to be read from the shift-register at an operation unit 6 based on the detection result of a flow meter 5, is operated to read the data of the temperature of water entering. The capacity of the buner 7 is switched nd controlled so as to become to the predetermined, given temperature based on the data of the temperature of water entering thereof for the supplying hot-water tempera ture by control circuit 8. According to this method, the capacity change of the burner 7 may be effected in accordance with the temperature of water entering concidering arriving actually to the inlet port of a heat-exchanger 2, further, the supplying hot-wa ter temperature may be stabilized even when the temperature of water entering is being changed suddenly. |
