Air conditioner

Details Air conditioner Air conditioner

2008-07-10

2011-12-27

Tyler, Cheryl J (Department: 3744)

Refrigeration

Disparate apparatus utilized as heat source or absorber

With vapor compression system

C062S515000, C062S324600, C062S238700, C062S199000, C062S200000

Reexamination Certificate

active

08082749

ABSTRACT:
An air conditioner having a heat-source side unit including a compressor and a heat-source side heat exchanger, plural use-side units each having a use-side heat exchanger and an inter-unit pipe for connecting the heat-source side unit to the plural use-side units, including an auxiliary heat source unit having a water-refrigerant heat exchanger for heat-exchanging refrigerant with water, a refrigerant side of the water-refrigerant heat exchanger being selectively connectable to one of the high-pressure gas pipe and the low-pressure gas pile through one of a first change-over valve and a second change-over valve, and also connected to a liquid pipe through an expansion valve, and a controller for controlling the auxiliary heat source unit so that the water-refrigerant heat exchanger of the auxiliary heat source unit functions as an evaporator with a water side thereof serving as a heat source when some of the user-side units are under heating operation.

REFERENCES:
patent: 7261243 (2007-08-01), Butler et al.
patent: 2005/0066678 (2005-03-01), Kamimura
patent: 2006/0005558 (2006-01-01), Otake et al.
patent: 1275913 (2003-01-01), None
patent: 1521046 (2005-04-01), None
patent: 1607695 (2005-12-01), None
patent: 1607696 (2005-12-01), None
patent: 1617158 (2006-01-01), None
patent: 1775528 (2007-04-01), None
patent: 2-279962 (1990-11-01), None
patent: 02279962 (1990-11-01), None

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