| 摘要 |
PURPOSE:To avoid the waste supply of hot water due to its leakage by using a level setter to set the time limit corresponding to the set level and deciding the leakage of water to produce an alarm through a check part in case a lower level sensor is not turned on within a prescribed period of time after the start of supply of hot water. CONSTITUTION:An automatic hot water supply device for bathtub 6 consists of a hot water supply device 1, a solenoid valve 5, a hot water controller 18 connected with an operating board 15 and a setting board part 27, etc. The hot water is supplied automatically up to a prescribed level via a mixture valve 4 between a water pipe 2 and a hot water pipe 3 and through a solenoid valve 5. Here the upper and lower level sensors 14 are set to the bathtub 6 together with a temperature sensor 8. Furthermore a temperature setter and a level setter are provided at the part 27. These outputs of sensors and setting signals are supplied to the controller 18 and at the same time a check part is added. Thus the hot water supply is stopped when a prescribed period of time passed after an upper level sensor 14H is turned on. While the leakage of water is decided in case a lower level sensor 14L is not turned on within a prescribed time after the start of the hot water supply. Thus an alarm is produced from the check part. |
