Patent ID: 11920819
Assignee: LENNOX INDUSTRIES INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 14:
15. A controller for operating a heating, ventilation, and air conditioning (HVAC) system, the controller comprising:
a memory configured to store an indoor temperature setpoint and a default discharge air temperature setpoint; and
a processor configured to:
receive an indoor air temperature (IAT) of an enclosed space to which conditioned air is provided by the HVAC system;
determine, based on a difference between the received IAT and the indoor temperature setpoint, that the IAT is not within a threshold range of the indoor temperature setpoint;
after determining that the IAT is not within the threshold range of the indoor temperature setpoint, determine an adaptive discharge air temperature setpoint based on the default discharge air temperature setpoint and the difference between the received IAT and the indoor temperature setpoint;
determine a compressor speed at which to operate a variable-speed compressor of the HVAC system based on the adaptive discharge air temperature setpoint; and
cause the variable-speed compressor to operate at the determined compressor speed.