Patent ID: 11913690
Assignee: HILL PHOENIX, INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 14:
15. A method comprising:
measuring a level of liquid accumulated within a liquid/vapor separator;
measuring a level of oil accumulated within the liquid/vapor separator;
determining that at least one of i) the level of liquid accumulated within the liquid/vapor separator exceeds a threshold value or ii) a calculated value based on the level of liquid accumulated within the liquid/vapor separator exceeds the threshold value, the level of liquid comprising a total level of oil and liquid refrigerant accumulated within the liquid/vapor separator;
in response to said determination, determining a level of liquid refrigerant accumulated within the liquid/vapor separator by subtracting the level of oil from the total level of oil and liquid refrigerant; and
initiating a liquid refrigerant return process in response to the level of liquid refrigerant accumulated within the liquid/vapor separator exceeding the threshold value.