Systems and methods for operating a furnace system
AssigneeJohnson Controls Light Commercial IP GmbH
InventorsMadhuka Manuranga Jayarathne, Daniel W. Davis, II, Frank D. Ashby
Life of this patent
Estimating the term…
Abstract
A furnace system includes a heat exchanger and a burner assembly including a burner enclosure fluidly coupled to the heat exchanger. The burner assembly is configured to receive a fluid, ignite the fluid to produce combustion byproducts, and direct the combustion byproducts to the heat exchanger. The furnace system also includes a pressure sensor configured to detect a pressure within the burner enclosure. The furnace system is configured to operate based on the pressure detected by the pressure sensor.
Claims15
A furnace system, comprising:
- a heat exchanger;
- a conduit configured to direct a fuel/oxidizer mixture therethrough;
- a burner assembly comprising a burner enclosure fluidly coupled to the heat exchanger and the conduit and disposed between the heat exchanger and the conduit, wherein the burner enclosure is configured to receive the fuel/oxidizer mixture from the conduit, ignite the fuel/oxidizer mixture to produce combustion byproducts, and direct the combustion byproducts to the heat exchanger;
- and
- a pressure sensor disposed within the burner enclosure and configured to detect a negative pressure within the burner enclosure, wherein the furnace system is configured to adjust operation based on a determination that the negative pressure detected by the pressure sensor exceeds a threshold negative pressure, wherein the determination is indicative of a blockage within the conduit.
A furnace system, comprising:
- a premix burner assembly, comprising:
- a conduit configured to direct a fuel/oxidizer mixture therethrough;
- a burner enclosure configured to receive the fuel/oxidizer mixture from the conduit and ignite the fuel/oxidizer mixture to produce combustion byproducts;
- and
- a pressure sensor comprising a first end positioned within an internal volume of the burner enclosure and a second end positioned external to the internal volume, wherein the pressure sensor is configured to detect a pressure within the burner enclosure, and the pressure sensor is configured to cause interruption of a flow of electrical power to the furnace system to suspend operation of the furnace system in response to the pressure comprising a vacuum that exceeds a threshold negative pressure indicative of a blockage within the conduit.
A burner assembly of a furnace system, the burner assembly comprising:
- a burner enclosure comprising an internal volume, wherein the burner enclosure is configured to receive a fuel/oxidizer mixture from a conduit coupled to the burner enclosure and ignite the fuel/oxidizer mixture to produce combustion byproducts;
- and
- a pressure switch comprising a first end positioned within an internal volume of the burner enclosure and a second end positioned external to the internal volume, wherein the pressure switch is configured to transition between a closed configuration and an open configuration, wherein the closed configuration enables flow of electrical power to the furnace system, the open configuration interrupts the flow of electrical power to the furnace system, and the pressure switch is configured to adjust to the open configuration in response to a detection of a vacuum within the burner enclosure exceeding a threshold negative pressure, wherein the detection is indicative of a blockage within the conduit.
Dependencies are inferred from the claim text.