Methods and systems for operating HVAC systems in low load conditions
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United States of America Patent
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Feb 7, 2023
Grant Date -
Nov 4, 2021
app pub date -
Jul 15, 2021
filing date -
Nov 25, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A system comprising a compressor, a first valve coupled to the compressor and coupled to a first coil, a first expansion valve coupled to the first coil, a second coil, and a second expansion valve. The second expansion valve coupled to a third coil, a second valve coupled to the compressor and the third coil. A controller operable to operate the first valve, the first expansion valve, the second expansion valve, and the second valve. The second coil is coupled to the compressor and the refrigerant flows from the second coil to the compressor.
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