JPH0294687U

JPH0294687U -

Info

Publication number: JPH0294687U
Application number: JP405689U
Authority: JP
Priority date: 1989-01-17
Filing date: 1989-01-17
Publication date: 1990-07-27
Anticipated expiration: 2003-03-11
Also published as: JPH059903Y2

Description

[Brief explanation of drawings]

第１図は本考案実施例の説明図、第２図は制御
プログラムを説明するフローチヤート、第３図は
従来例の説明図であり、図中、２……浴槽、３……追焚き回路、１１……湯張
り弁、１５……給湯回路、３０……追焚き用熱交
換器、３１……水流スイツチ、３７……切替弁、
９０……信号発生手段、Ｐ……循環ポンプ。 Fig. 1 is an explanatory diagram of an embodiment of the present invention, Fig. 2 is a flow chart illustrating a control program, and Fig. 3 is an explanatory diagram of a conventional example. , 11... hot water filling valve, 15... hot water supply circuit, 30... heat exchanger for reheating, 31... water flow switch, 37... switching valve,
90...Signal generating means, P...Circulation pump.

Claims

[Scope of utility model registration request]

A reheating circuit 3 formed to circulate between the bathtub 2 and a reheating heat exchanger 30, a water flow switch 31 and a circulation pump P inserted into the reheating circuit 3, and an upstream of the circulation pump P. a hot water supply circuit 15 for filling hot water connected to the side and equipped with a hot water filling valve 11;
Furthermore, the reheating circuit 3 is shut off and the hot water supply circuit 15 is switched off.
A switching valve 37 is provided to switch between at least two states: a hot water filling state in which the hot water is connected to the circulation pump P side, and a reheating state in which the hot water supply circuit 15 is shut off by opening the reheating circuit 3. After the operation, the circulation pump P is operated with the reheating circuit 3 established, and the water flow switch 31 is turned on at this time.
- Signal generating means that outputs a signal when water supplied from the hot water supply circuit 15 reaches the circulation pump P section in a device that detects the presence or absence of residual water in the bathtub 2 based on the OFF signal. 90, and at the start of the water supply operation of the hot water supply circuit 15, the hot water supply circuit 1
A switching valve control device is provided for switching the switching valve 37 to a state where the switching valve 5 is connected to the circulation pump P side, and the switching valve control device shuts off the hot water supply circuit 15 when a signal is output from the signal generating means 90 described above. A signal is issued to switch the switching valve 37 so that the reheating circuit 3 is established, and before the residual water detection operation in the bathtub 2, the hot water supply circuit 15 is activated.
A residual water detection device for a bathtub, which operates the signal generating means 90 by supplying water from the bathtub.