| 摘要 |
PROBLEM TO BE SOLVED: To provide an erroneous piping detection system capable of quickly and securely detecting whether erroneous connection exists in piping connection between a hot water going pipe 12 and a hot water returning pipe 13 or not, in a bathroom heating device 1 including a hot water supply device 10 and a bathroom heater 30. SOLUTION: The erroneous piping detection system in the bathroom heating device includes at least a temperature sensor 14 provided for the hot water going pipe 12, a storage means 71 for storing temperature of the temperature sensor 14, and a determination means 72 for determining whether difference between first temperature T1 before the bathroom heater 30 starts heat exchange with air in a bathroom 20 and second temperature T2 after starting the heat exchange, which are stored by the storage means 71, exceeds a threshold value β set beforehand or not. COPYRIGHT: (C)2011,JPO&INPIT
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