Lennox Industries Inc.

Santhosh Kumar Selvam

Rohini Brahme

Alwin Sebastian John

Leema Kulandaisamy

Jeeson Kangirathingal Joy

During an initial period of time, an HVAC controller stores a record of an energy demand of the HVAC system that corresponds to an amount of energy used to operate the HVAC system. For a future time period, an anticipated energy demand of the HVAC system is determined. The controller then recursively determines, for each of a plurality of time points within the future time period, an anticipated indoor humidity value using the anticipated energy demand and the record of the energy demand. The HVAC system is operated based at least in part on the anticipated indoor humidity value.

Proactive system control using humidity prediction

During an initial period of time, an HVAC controller receives an indoor humidity and an outdoor humidity. A record of an energy demand of the HVAC system is stored for each indoor humidity and outdoor humidity. For a future time period, an anticipated energy demand of the HVAC system is determined. The controller then recursively determines, for each of a plurality of time points within the future time period, an anticipated indoor humidity value using the anticipated energy demand and the record of the energy demand. The HVAC system is operated based at least in part on the anticipated indoor humidity value.

A method includes receiving a setpoint and a time of interest indicating a time in the future when the setpoint is to be reached and obtaining a first data set comprising a plurality of lag values, the plurality of lag values associated with one or more variables related to the HVAC system. The method further includes selecting a second data set comprising a subset of the lag values from the first data set and determining a predicted condition at the time of interest based at least in part on the lag values in the second data set. The method further includes determining a schedule for operating heating or cooling components of the HVAC system such that the setpoint is reached by the time of interest and communicating one or more signals instructing the HVAC system to operate according to the schedule.

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Palakkad, India

Santhosh Kumar Selvam