HOT-WATER SUPPLY DEVICE - DAIKIN IND LTD

Title:

HOT-WATER SUPPLY DEVICE

Document Type and Number:

WIPO Patent Application WO/2006/004046

Kind Code:

A1

Abstract:

A hot-water supply device (10) has a first refrigerant circuit (20), a medium-temperature water circuit (40), a second refrigerant circuit (60), and a high-temperature water circuit (80). The first refrigerant circuit (20) forms a heat pump using outdoor air as the heat source and heats heat medium water in the medium-temperature water circuit (40). In the medium-temperature water circuit (40), the heat medium water circulates between a radiator (45) for floor heating, a second heat exchanger (50), and a first heat exchanger (30). The second refrigerant circuit (60) forms a heat pump using as the heat source the heat medium water in the medium-temperature water circuit (40) and heats water for hot water supply in the high-temperature water circuit (80).

Inventors:

NISHIMURA TADAFUMI (JP)
YAMAGUCHI TAKAHIRO (JP)

Application Number:

PCT/JP2005/012218

Publication Date:

January 12, 2006

Filing Date:

July 01, 2005

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
NISHIMURA TADAFUMI (JP)
YAMAGUCHI TAKAHIRO (JP)

International Classes:

F24H1/00; F25B30/02; (IPC1-7): F24H1/00; F25B30/02

Foreign References:

JP2003222395A	2003-08-08
JPH04263758A	1992-09-18

Other References: