Patent ID: 9696052
Date: 2017-07-04
CPC Classifications: F24F

Claim:
1. A controller for operating HVAC equipment on a premise defined at least in part by a window panel, the controller having a processor and memory, wherein the controller is operable to receive a set of internal temperature values, the set of internal temperature values comprising a current internal temperature value representing a current internal temperature within the premise and a future internal temperature value set in the controller, the future internal temperature value representing a future temperature to be attained within the premise; the controller operable to receive a set of external temperature values, the set of external temperature values comprising a current external temperature value representing a current temperature outside the premise, at least one historical external temperature value representing a historical temperature outside the premise, and at least one forecasted external temperature value representing a forecasted temperature outside the premise received from a weather feed provided over a network; the controller is operable to determine a lowest internal temperature value from the set of internal temperature values and to identify the lowest internal temperature value as a predictive internal temperature value and to determine a lowest external temperature value from a subset of the set of external temperature values and to identify the lowest external temperature value from the subset as a predictive external temperature value; the controller is operable to receive an internal humidity value representing humidity within the premise, the controller further being operable to control the HVAC equipment to modify the humidity within the premise when the received internal humidity value is different from a humidity set point stored in the controller; and the humidity set point is regulated by a humidity limit value, the humidity limit value being the lowest humidity value where condensation would form on the window panel, the humidity limit value being calculated using the predictive internal temperature value and the predictive external temperature value.