Method for solving charge imbalance in existing split heat pump
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United States of America Patent
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Sep 15, 2020
Grant Date -
Dec 27, 2018
app pub date -
Jun 23, 2017
filing date -
Jun 23, 2017
priority date (Note) -
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Abstract
A system and method are described that help in alleviating charge imbalance issues, especially in HVAC systems that are operable in both heating and cooling modes. In various embodiments a compensator is attached to the liquid line of an outdoor heat exchanger. A heater is attached to the compensator. During cooling operations the heater is turned on to help drive refrigerant out of the compensator. During heating operations the heater is turned off, allowing excess refrigerant to migrate to the compensator and alleviate high pressure in the system.
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