CPC F24F 11/32 (2018.01) [F24F 11/52 (2018.01); F24F 11/56 (2018.01); F24F 11/64 (2018.01); F24F 11/65 (2018.01); G05B 15/02 (2013.01); F24F 2140/50 (2018.01); F24F 2140/60 (2018.01)] | 20 Claims |
1. A controller for a heating, ventilation, and/or air conditioning (HVAC) system, wherein the controller is configured to:
detect an input voltage received as a power supply by the HVAC system;
determine the input voltage exceeds a threshold value;
in response to determining that the input voltage exceeds the threshold value:
identify a voltage variation event in response to a determination that a duration of time during which the input voltage exceeds the threshold value is greater than a first threshold time period; and
identify the voltage variation event in response to a determination that the input voltage trends away from the threshold value for a second threshold time period, wherein the second threshold time period is less than the first threshold time period; and
operate a vapor compression system of the HVAC system in a de-rated operating mode to condition an air flow in response to identifying the voltage variation event.
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