| 摘要 |
<p>PURPOSE:To make it possible to supply hot water of a low temperature constantly after releasing priority and prevent burns and the like of a user by setting the temperature of hot water to a minimum set temperature when a signal of releasing the priority is supplied from a remote control portion which is in a priority state to a main control portion. CONSTITUTION:In a case where a remote control portion 6 carries out an operation of pressing button to close a changeover switch and in a priority state, even when operations of pressing button to close switches of other remote control parts 4 and 5 are carried out, these operations are invalidated until the priority releasing switch of the control part 6 is pressed and closed to release the priority. A main remote control portion 4 transmits data output from the remote control portion 6 to a main control part 2. Thereafter, when the supply of hot water due to the set temperature set by the remote control portion 6 is completed and the priority releasing switch is pressed and closed, an interface circuit 39 detects a priority releasing signal. An indication signal indicating 'tepid' which shows a minimum set temperature to the main control portion 2 and remote control portion 5 and 6 and the main control portion 2 outputs to a control circuit 8 a signal indicating the set temperature of hot water based on the indication signal indicating 'tepid'.</p> |
