Title:
温水装置
Document Type and Number:
Japanese Patent JP7230497
Kind Code:
B2
Abstract:
To provide a water heating device capable of removing an additive contained in clean water during a hot water storing operation, and preventing the additive contained in the clean water from being removed during a cleaning operation.SOLUTION: A water heating device comprises a circulation duct, a hot water supply duct, a hot water pouring duct connecting the circulation duct with the hot water supply duct, and a control section. The hot water pouring duct includes a flow channel switching valve, a first duct, a second duct and a third duct. The first duct is connected to the hot water supply duct in one end and connected to the flow channel switching valve in the other end. The second duct is connected to the flow channel switching valve in one end and connected to the circulation duct in the other end. The third duct is connected to the flow channel switching valve in one end and connected to any one of the first duct and the second duct in the other end. The third duct includes a filter part. The control section controls the flow channel switching valve into a first state when performing a hot water storing operation and controls the flow channel switching valve into a second state when performing a cleaning operation of the circulation duct.SELECTED DRAWING: Figure 1
Inventors:
Yoshiya Masaya
Application Number:
JP2018242799A
Publication Date:
March 01, 2023
Filing Date:
December 26, 2018
Export Citation:
Assignee:
Noritsu Co., Ltd.
International Classes:
A47K3/00; F24H15/196
Domestic Patent References:
| JP2013002669A | ||||
| JP2002115903A | ||||
| JP11123383A | ||||
| JP2012163248A | ||||
| JP2010002114A | ||||
| JP2005058992A | ||||
| JP2001173973A |
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office