HOT WATER SUPPLY DEVICE

Japanese Patent JP3900098

B2

PROBLEM TO BE SOLVED: To efficiently operate a hot water supply system.
SOLUTION: This hot water supply device is constituted so as to supply high temperature hot water to a floor heating panel 30, and heat supply hot and cold water by circulating the hot water flowing out of the floor heating panel 30 to a second hot water supply heat exchanger 42. Thus, since the temperature of return hot water dropped in the temperature after finishing heat radiation by the second hot water supply heat exchanger 42 drops up to about the temperature of tap water supplied to the second hot water supply heat exchanger 42, even if the return hot water flowing out of the second hot water supply heat exchanger 42 is returned to the lower side of a hot water storage tank 10, a temperature rise in low temperature water on the lower side of the hot water storage tank 10 can be prevented. As a result, because of the reduction in a temperature difference between the low temperature water and a high temperature refrigerant can be prevented when heating the low temperature water on the lower side of the hot water storage tank 10 by a heat pump unit 20 (a high pressure side heat exchanger 22), reduction in quantity of heat applicable to the hot water from the heat pump unit 20 can be prevented.

Iwase Jun
Kousuke Sakakibara

JP2003078387A

April 04, 2007

March 20, 2003

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株式会社デンソー

F24H1/00; F24D3/18; F24H1/18; (IPC1-7): F24H1/00; F24D3/18; F24H1/18

JP59077233A
JP2002147891A
JP8254364A
JP2000346396A

Yoji Ito
Takahiro Miura
Fumihiro Mizuno

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