| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water storage type water heater including a hot water heating function which stops hot water circulated from a pump to a heating circuit and thereby prevents lowering of a temperature of the hot water in a hot water storage tank even when a controller is brought in an uncontrollable state due to malfunction etc.SOLUTION: A hot water storage type water heater includes: first circulation means 101 which conducts circulation in a heating circuit 109; a heating part 102 for heating a heating device in which circulation is conducted by the first circulation means 101; control means formed by a microcomputer 103 which controls the first circulation means 101 and the heating part 102; and signal conversion means 105 which converts a pulse signal output from the microcomputer 103 to a static signal. The operation of the first circulation means 101 is controlled by a driving signal from the control means and a signal from the signal conversion means 105. |
