Time-based setback recovery
AssigneeLennox Industries Inc.
InventorTimothy E. Wallaert
Life of this patent
Estimating the term…
Abstract
A system controller of a heating, ventilation and air-conditioning system is configured to control the operation of a demand unit to maintain a comfort characteristic setpoint of a conditioned space. The controller includes a setback calculation module that is configured to calculate a setback value of the setpoint as a function of a recovery time from the setback value to the setpoint.
Claims26
A heating, ventilation and air-conditioning system, comprising:
- a system controller configured to control the operation of a demand unit to maintain a comfort characteristic setpoint of a conditioned space;
- and
- a setback calculation module of said system controller configured to calculate a setback value of said setpoint as a function of a recovery time from said setback value to said setpoint.
A method of manufacturing a heating, ventilation and air-conditioning system, comprising:
- configuring a system controller to control the operation of a demand unit to maintain a comfort characteristic setpoint of a conditioned space;
- and
- configuring a setback calculation module of said system controller to calculate a setback value of said setpoint as a function of a recovery time from said setback value to said setpoint.
A heating, ventilation and air-conditioning system controller, comprising:
- a processor;
- and
- a memory containing instructions,
- wherein said instructions are configured to control the operation of a demand unit to maintain a comfort characteristic setpoint of a conditioned space, and to calculate a setback value of said setpoint as a function of a recovery time from said setback value to said setpoint.
A heating, ventilation and air-conditioning system controller, comprising:
- a processor;
- and
- a memory containing a data structure that correlates a recovery time of a comfort characteristic setpoint maintained by said processor with at least one measured local environmental condition,
- wherein said processor is configured to update said data structure to maintain a comfort characteristic setpoint of a conditioned space, and to calculate a setback value of said setpoint as a function of said recovery time.
Dependencies are inferred from the claim text.