Title:
HOT WATER SUPPLY UNIT
Document Type and Number:
Japanese Patent JP3129977
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To supply hot water of a desired temperature as quick as possible by an arrangement wherein a temperature keeping combustion mode can be executed when set conditions are satisfied upon interruption of water supply to a heat-exchanger and a time for switching from a normal combustion mode to the temperature keeping combustion mode can be set previously.
SOLUTION: A control means 30 comprises a section 31 for executing a normal combustion mode during hot water supply, and a section 32 for executing a temperature keeping combustion mode at the time of waiting hot water supply. The control means 30 further comprises an auxiliary control section 33 provided with means 34 for setting a switching time between the normal combustion mode and the temperature keeping combustion mode, and means 35 for storing start of water supply detected by a water supply quantity sensor 7. If set conditions tar temperature keeping combustion are satisfied when hot water supply is interrupted and thereby water supply to a heat-exchanger 2 is interrupted, temperature keeping combustion of a burner 3 is started to heat the hot water in the internal hot water passage wherein the switching time to the temperature keeping combustion mode can be set previously.
Inventors:
Toshiya Shirakura
Yoshihisa Fujita
Hideaki Fujikawa
Yoshihisa Fujita
Hideaki Fujikawa
Application Number:
JP26395496A
Publication Date:
January 31, 2001
Filing Date:
October 04, 1996
Export Citation:
Assignee:
Herman Co., Ltd.
International Classes:
F24H1/10; (IPC1-7): F24H1/10; F24H1/10
Domestic Patent References:
| JP10103772A |
Attorney, Agent or Firm:
Shuichiro Kitamura