HVAC dual de-superheating/subcooling heat reclaim system for transcritical refrigeration systems
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United States of America
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Nov 12, 2024
Grant Date -
Mar 21, 2024
app pub date -
Nov 29, 2023
filing date -
Nov 29, 2023
priority date (Note) -
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Abstract
A dual reclaim coil with a smart control application is provided that allows the refrigerant inlet to the HVAC unit switch between the two sides of the condenser is aimed to use the high temperature and pressure of the condenser/gas cooler outlet while a CO2 refrigerant system is operating above critical point. This occurs in hot ambient conditions, when the need for heating in the space is not as great as in the wintertime and the available heat at the condenser/gas cooler's outlet is sufficient to satisfy the heating load. This also mitigates space overcooling, while increasing the CO2 transcritical system's efficiency by subcooling the refrigerant for applications involving dehumidification HVAC systems which often results in a phenomenon called “overcooling” during the dehumidification season.
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