Methods and systems for operating HVAC systems in low load conditions
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United States of America Patent
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Nov 8, 2022
Grant Date -
May 13, 2021
app pub date -
Jan 22, 2021
filing date -
Nov 25, 2014
priority date (Note) -
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Abstract
A system comprising a compressor, a first valve coupled to the compressor and to a first coil, a first expansion valve coupled to the first coil, and a second expansion valve. The second expansion valve coupled to a second coil. A second valve is coupled to the second coil and the compressor. A third valve is coupled to the compressor and a third coil. In response to receiving a heating demand that is below a threshold heating demand, a controller induces an artificial heating demand.
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