貯湯式給湯機

Japanese Patent JP5776628

B2

PROBLEM TO BE SOLVED: To provide a storage water heater configured to decrease the number of recovery ports where the hot water returning from a use side heat exchanger is recovered in a hot water storage tank as much as possible, and also to eliminate the need for a temperature sensor for detecting the temperature of a returning hot water, thereby reliably preventing the occurrence of hot water stopping and maintaining high efficiency of boiling operation.SOLUTION: A storage water heater includes: an upper return circuit for returning hot water taken out of a hot water storage tank 10 via a use side heat exchanger 22 to an upper area of the hot water storage tank 10; a lower return circuit for returning the hot water taken out of the hot water storage tank 10 via the use side heat exchanger 22 to a lower area of the hot water storage tank 10; a flow path switching means for switching between the upper return circuit and the lower return circuit; a detection means for detecting a temperature of stored hot water at a predetermined height position in the hot water storage tank 10; and a control unit 70 configured to use the upper return circuit when a detection value of the detection means is a threshold value or more upon starting a heating operation, and to use the lower return circuit when the detection value of the detection means is less than the threshold value.

Ken Takahashi
Natsuki Watanabe
Akihiro Toda
Kazuki Ikeda
Mune Hiraoka

JP2012115727A

September 09, 2015

May 21, 2012

Click for automatic bibliography generation  

Mitsubishi Electric Corporation

F24H1/18; F24H1/00

JP2007271163A
JP200947321A
JP201065930A
JP200678040A
JP2011226664A
JP200985439A
JP2005164237A
JP2010266186A

Mamoru Takada
Hideki Takahashi
Yasuo Koizumi

Previous Patent: 電動式パワーステアリング装置用ステアリングコラムの支持装置及び支持�...

Next Patent: SELECTION FRAME OR KEYBOARD FRAME FOR ENCODING SYMBOL