Preventing icing in an hvac system
AssigneeCarrier Corporation
InventorCharles A. Cluff
Life of this patent
Estimating the term…
Abstract
A method of operating a heating, ventilation, and air conditioning (HVAC) system includes monitoring a parameter of the HVAC system associated with a temperature of a refrigerant at a heat exchanger, determining if the HVAC system is in an operating condition associated with frost accumulation at the heat exchanger, and adjusting a flow rate of an airflow across the heat exchanger in response to determining that the HVAC system is in the operating condition associated with frost accumulation at the heat exchanger.
Claims19
A method of operating a heating, ventilation, and air conditioning (HVAC) system comprising:
- monitoring a parameter of the HVAC system associated with a temperature of a refrigerant at a heat exchanger;
- determining if the HVAC system is in an operating condition associated with frost accumulation at the heat exchanger;
- and
- adjusting a flow rate of an airflow across the heat exchanger in response to determining that the HVAC system is in the operating condition associated with frost accumulation at the heat exchanger.
A heating, ventilation, and air conditioning (HVAC) system, comprising:
- a closed loop circuit having refrigerant circulating therethrough, the closed loop circuit including a compressor and a heat exchanger;
- a movement mechanism for moving an airflow across the heat exchanger;
- a sensor operable to sense a parameter of the closed loop circuit;
- and
- a controller operable to adjust a flow rate of the airflow across the heat exchanger in response to the parameter to maintain a temperature of the refrigerant at the heat exchanger above freezing.
Dependencies are inferred from the claim text.