Title:
1 CAN 3 CIRCUIT TYPE WATER HEATER
Document Type and Number:
Japanese Patent JP2019090581
Kind Code:
A
Abstract:
To provide a 1 can 3 circuit type water heater which can prevent hot water supply temperature from being undershot even when water heating operation is started upon heating operation single performance.SOLUTION: A 1 can 3 circuit type water heater includes a burner part 2, a heating heat exchange can body 1 which heats an inner side heat medium by burning of the burner part 2 and a hot water supply circuit B provided with a hot water supply heat exchanger 4 in the heating heat exchange can body 1, and a water proportional valve 24 which adjusts hot water supply amount is provided on the hot water supply circuit B. Therein, the water proportional valve 24 is operated at such an opening degree upon stand-by that the hot water supply amount decreases when heating operation is performed singly, therefore, even when hot water supply operation is started in such a state that the heating operation is performed singly, a stand-by opening degree of the water proportional valve 24 is squeezed, therefore, the hot water supply amount is suppressed and, thereby, even when a can body target temperature is set low while heating operation is performed singly, such undershooting that the hot water supply temperature becomes lower than the hot water setting temperature is prevented.SELECTED DRAWING: Figure 3
Inventors:
MORITA MAKOTO
HASEGAWA MASAYA
HASEGAWA MASAYA
Application Number:
JP2017220544A
Publication Date:
June 13, 2019
Filing Date:
November 16, 2017
Export Citation:
Assignee:
CORONA CORP
International Classes:
F24D3/08; F24H1/36
Domestic Patent References:
| JP2001108302A | 2001-04-20 | |||
| JP2005241086A | 2005-09-08 | |||
| JP2010117052A | 2010-05-27 |