Furnace control systems and methods
AssigneeJohnson Controls Light Commercial IP GmbH
InventorsAndrew Michael Boyd, Rakesh Mathew, Damion Marcel Taylor Cave
Life of this patent
Estimating the term…
Abstract
A furnace system for a heating, ventilation, and air conditioning (HVAC) system includes a furnace controller configured to determine a rolling average furnace run time of the furnace system based on a plurality of previous run cycles of the furnace system. The furnace controller is configured to segment the rolling average furnace run time into a plurality of operational time periods, wherein each operational time period is associated with a distinct fire rate of a plurality of distinct fire rates the furnace system. The furnace controller is also configured to operate the furnace system to sequentially implement the plurality of distinct fire rates associated with the plurality of operational time periods.
Claims19
A furnace system for a heating, ventilation, and air conditioning (HVAC) system, comprising:
- a furnace controller configured to:
- determine a rolling average furnace run time of the furnace system based on a plurality of previous run cycles of the furnace system;
- segment the rolling average furnace run time into a plurality of operational time periods, wherein each operational time period is associated with a distinct fire rate of a plurality of distinct fire rates the furnace system;
- and
- operate the furnace system to sequentially implement the plurality of distinct fire rates associated with the plurality of operational time periods.
A furnace controller for a furnace system, wherein the furnace controller is configured to:
- initiate operation of a furnace system based on receipt of a call for heating;
- determine that a communication link between the furnace controller and a sensor is severed;
- and
- based on determination of severance of the communication link, operate the furnace system in accordance with a segmented operational control scheme,
- wherein, to operate the furnace system in accordance with the segmented operational control scheme, the furnace controller is configured to:
- segment a rolling average furnace run time of the furnace system into a plurality of operational time periods, wherein each operational time period is associated with a distinct fire rate of a plurality of distinct fire rates the furnace system;
- and
- operate the furnace system to sequentially implement the plurality of distinct fire rates associated with the plurality of operational time periods.
A non-transitory, computer-readable medium comprising instructions that, when executed by a processor, are configured to cause the processor to:
- determine a rolling average furnace run time of a furnace system based on a plurality of previous run cycles of the furnace system;
- segment the rolling average furnace run time into a plurality of operational time periods corresponding to a plurality of distinct fire rates of the furnace system;
- and
- operate the furnace system to sequentially implement the plurality of distinct fire rates corresponding to the plurality of operational time periods.
Dependencies are inferred from the claim text.