| 摘要 |
<P>PROBLEM TO BE SOLVED: To notify a user in a bathtub that drain water is being discharged through a reheating circulation passage without giving discomfort to. <P>SOLUTION: The reheating circulation passage connected to a bathtub is connected to an outlet side of a hot water supply side circuit via a connection passage. The bath water heater device has: a drainage function for discharging drain water generated in a latent heat recovery hot water supply heat exchanger to the bathroom through the reheating circulation passage; and a drain cleaning function for supplying water from the hot water supply side circuit to the reheating circulation passage after the drainage operation so as to clean a flow passage of the drain. When the drainage operation and drain cleaning operation are performed at other than the start of and during an automatic hot water filling operation for supplying hot water in the bathtub to a predetermined set water level through the reheating circulation passage, a drainage display control means 48 indicates that the drainage operation of the drainage function is in operation and the drain is being cleaned on a display part 49 of a remote control device 50. <P>COPYRIGHT: (C)2012,JPO&INPIT |
