Air conditioner and method of controlling such

The object of this invention is to provide an air conditioner with a variable capacity compressor parallely connected to a fixed capacity compressor, and a method of controlling the operation of such an air conditioner. When it is required to start the fixed capacity compressor in addition to an ope...

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Bibliographic Details
Main Authors Kim, Jong-Youb, Cho, Il-Yong, Moon, Je-Myoung, Moon, Joong-Ki, Han, Chang-Hee
Format Patent
LanguageEnglish
Published 08.11.2005
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Summary:The object of this invention is to provide an air conditioner with a variable capacity compressor parallely connected to a fixed capacity compressor, and a method of controlling the operation of such an air conditioner. When it is required to start the fixed capacity compressor in addition to an operation of the variable capacity compressor due to an increase in the sum of the required cooling capacities of indoor units, an outdoor control unit starts the fixed capacity compressor during an unloading mode operation of the variable capacity compressor where the pressure difference between the outlet side and inlet side of the variable capacity compressor is minimized. The fixed capacity compressor is thus smoothly started without causing an induction of excessive starting current, and improves the operational reliability of the air conditioner.