Air-conditioning apparatus

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12169082
APP PUB NO 20230194131A1
SERIAL NO

18000308

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Abstract

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An air-conditioning apparatus includes a low-pressure-side pressure sensor that detects the pressure of heat-source-side refrigerant that flows into a compressor and outputs it as a first detection value and a high-pressure-side pressure sensor that detects the pressure of heat-source-side refrigerant discharged from the compressor and outputs it as a second detection value. When switching the operation mode of the apparatus, a controller determines whether the ratio of the first detection value to the second detection value is higher than a first threshold. When the ratio is higher than the threshold, the controller causes a second refrigerant flow switching device to perform a switching operation. When the ratio is less than or equal to the threshold, the controller makes an adjustment such that an opening degree of an expansion device is less than a second threshold, and then causes the second refrigerant flow switching device to perform the switching operation.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC CORPORATIONCHIYODA-KU TOKYO 100-8310

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furuya, Koji Tokyo, JP 27 137
Motomura, Yuji Tokyo, JP 104 596
Washiyama, Hiroki Tokyo, JP 16 11

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