AUTOMATIC HOT WATER FILLING APPARATUS

Japanese Patent JP3101105

B2

PURPOSE: To rapidly reduce an error of an actual hot water filling complete time from a reserved bathing desired set time.
CONSTITUTION: A bathtub body 1 is connected to a heat exchanger for reheating for bath temperature keeping function via a circulation channel (a) for bath temperature keeping function, a hot water supply cock, a hot water supply heat exchanger and a water source are connected via hot water supply channel (b), and a circulation channel for bath temperature keeping function is connected to the hot water supply channel via a hot water filling channel (c). Further, temperature detecting means 13 is provided in the circulation channel, hot water filling quantity detecting means is provided in the hot water filling channel, control means having set means of hot water filling reversed time, hot water filling quantity, hot water temperature, etc., a counter electrically connected to the set means, hot water filling time calculator, etc., is provided. It is so constructed as to complete hot water filling at a previously input reserved time, and the hot water filling start time is calculated by a following formula. T=t1-(Q/V+t2), where T is a hot water filling start time, t1 is reserved time, t2 is reheating time for bath temperature keeping function (a calculated value calculated by the calculator), Q is a hot water filling quantity, and V is a hot water filling instantaneous flow rate (a calculated value calculated by the calculator).

Mikio Ochi
Yoshinori Kawasaki
Osamu Ishikura
Masahiro Hattori
Shoji Inoue

JP33634792A

October 23, 2000

December 16, 1992

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Japan Upro Co., Ltd.
Totou Equipment Co., Ltd.

F24H1/00; F24H1/46; (IPC1-7): F24H1/00

JP6163645U

Kenichiro Matsuo

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