Air conditioner and control method

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12188678
APP PUB NO 20220205675A1
SERIAL NO

17695326

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An air conditioner of an embodiment includes a plurality of outdoor units, one or more indoor units, and a control unit. The outdoor unit includes a compressor, a four-way valve, an outdoor heat exchanger, an outdoor expansion valve and an outdoor blower, and the outdoor units exchange heat between the outside air and a refrigerant. The indoor unit is an indoor unit connected to the plurality of outdoor units by a refrigerant pipe, includes an indoor heat exchanger, an indoor expansion valve, and an indoor blower, and exchanges heat between the indoor air and the refrigerant. The control unit controls the plurality of outdoor units and the one or more indoor units. The control unit controls the condensation pressure of the outdoor unit in a heating operation or the suction pressure of the outdoor unit in a defrosting operation to be equal to or smaller than an upper limit pressure, which is 1/1.5 times the rated maximum pressure during the heating operation when any of the outdoor units is in the defrosting operation.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
CARRIER JAPAN CORPORATIONCARRIER JAPAN CORPORATION 1- 11-1 OSAKI SHINAGAWA-KU TOKYO 141-0032

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamashima, Tetsuma Fuji, JP 3 2
Miura, Ken Fuji, JP 42 135
Shimizu, Katsuhiro Fuji, JP 47 539

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