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US 5,467,604 AGranted
Multiroom air conditioner and driving method therefor
AssigneeSanyo Electric Co., Ltd.
InventorsKunie Sekigami, Kouji Nagae, Makoto Shimotani
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AssigneeSanyo Electric Co., Ltd.
InventorsKunie Sekigami, Kouji Nagae, Makoto Shimotani
Estimating the term…
In a multiroom air conditioner and a method of driving a multiroom air conditioner containing plural outdoor side units each containing a compressor, an outdoor fan, an outdoor heat exchanger and a refrigerant path change-over valve, plural indoor side units each containing an indoor heat exchanger, and an inter-unit pipe comprising a high-pressure gas pipe, a low-pressure gas pipe and a liquid pipe through which the plural outdoor side units are connected to the indoor side units to thereby form a refrigerant cycle, and in which each individual indoor side unit independently and selectively performs a room cooling operation or a room heating operation for an individual room, when a stop signal is output to some outdoor side unit in accordance with an indoor load during a room cooling or heating operation, the refrigerant path change-over valve of the outdoor unit is switched and the outdoor fan thereof is driven so that the driving of the compressor of the outdoor side unit is stopped, but refrigerant is allowed to flow into the outdoor heat exchanger of the outdoor side unit.
A multiroom air conditioner in which each individual indoor side unit independently and selectively performs a room cooling operation or a room heating operation for an individual room, comprising
A method of driving a multiroom air conditioner which comprises plural outdoor side units each containing a compressor, an outdoor fan, an outdoor heat exchanger and a refrigerant path change-over valve, plural indoor side units each containing an indoor heat exchanger, and an inter-unit pipe comprising a high-pressure gas pipe, a low-pressure gas pipe and a liquid pipe through which said plural outdoor side units are connected to the indoor side units to thereby form a refrigerant cycle, and in which each individual indoor side unit independently and selectively performs a room cooling operation or a room heating operation for an individual room, characterized in that when a stop signal is output to some outdoor side unit in accordance with an indoor load during a room cooling or heating operation, the refrigerant path change-over valve of the outdoor unit is switched and the outdoor fan thereof is driven so that the driving of the compressor of the outdoor side unit is stopped, but refrigerant is allowed to flow into the outdoor heat exchanger of the outdoor side unit.
A method of driving a multiroom air conditioner which comprises plural outdoor side units each containing a compressor, an outdoor fan, an outdoor heat exchanger and a refrigerant path change-over valve, plural indoor side units each containing an indoor heat exchanger, and an inter-unit pipe comprising a high-pressure gas pipe, a low-pressure gas pipe and a liquid pipe through which the plural outdoor side units are connected to the indoor side units to thereby form a refrigerant cycle, and in which each individual indoor side unit independently and selectively performs a room cooling operation or a room heating operation for an individual room, characterized in that in a cooling and heating operation in which an indoor side unit performs a cooling operation while another outdoor side unit performs a heating operation, the compressor of some outdoor side unit is driven, and the refrigerant path change-over valve of the outdoor side unit is switched and the driving of the outdoor fan thereof is stopped so that no refrigerant flows into the outdoor heat exchanger of the outdoor side unit.
Dependencies are inferred from the claim text.