Abstract: The present disclosure relates to a heating, ventilating, and air conditioning (HVAC) unit configured to supply conditioned air to a conditioned space. The HVAC unit includes a first exhaust fan capable of operating at variable speeds and a second constant-speed fan. The HVAC unit also includes a controller configured to determine a target airflow to be provided to the conditioned space, cause actuation of the first exhaust fan at a variable fan speed when the target airflow is greater than zero, and cause actuation of the second exhaust fan when the target airflow is greater than an airflow threshold.

Abstract: A heating unit for a heating, ventilation and/or air conditioning (HVAC) system may have a first airflow path through the heating unit, a second airflow path through the heating unit, and a heater assembly having a first heating coil positioned within the first airflow path, a second heating coil positioned within the second airflow path, and a coil divider separating the first heating coil and the second heating coil.

Abstract: A system for refrigerant leak detection includes one or more sensors configured to detect one or more parameters of a heating, ventilation, and/or air conditioning (HVAC) system. The system further includes one or more storage devices storing instructions thereon that, when executed by one or more processors, cause the one or more processors to receive sensor data from the one or more sensors; apply the sensor data to one or more machine learning models, the one or more machine learning models trained to identify refrigerant leaks associated with HVAC systems; determine, using the one or more machine learning models, that the sensor data is indicative of a refrigerant leak; and, in response to determining that the sensor data is indicative of the refrigerant leak, initiate a response action.

Abstract: A furnace for a heating, ventilation, and/or air conditioning (HVAC) system includes a first set of heat exchanger tubes positioned within an air flow path of the furnace through which an air flow may be directed, a second set of heat exchanger tubes positioned within the air flow path of the furnace, and a deflector baffle positioned within the air flow path and configured to direct a portion of the air flow toward the second set of heat exchanger tubes. The first set of heat exchanger tubes, the deflector baffle, and the second set of heat exchanger tubes are each respectively offset from one another in a direction of the air flow along the air flow path.

Abstract: An intake hood system for a heating, ventilation, and/or air conditioning (HVAC) unit includes an intake hood having an inlet configured to receive an air flow into the intake hood, a first support configured to engage a first end of an air filter, and a second support configured to engage a second end of the air filter, where the first support is configured to align with a boundary of the inlet. The intake hood system also includes a lock bar configured to couple to the intake hood while abutting the first support and the second support to secure the air filter within the intake hood.

Abstract: A heating, ventilation, and air conditioning (HVAC) system comprises a housing defining a chamber configured to receive a first air flow and a second air flow. The chamber comprises a vacant section and a heating section, and the heating section comprises a heating coil. A first blower is configured to direct the first air flow into the vacant section of the chamber and a second blower is configured to direct the second air flow into the heating section of the chamber. The housing is configured to direct the first air flow from the vacant section to the heating section to combine with the second air flow and configured to direct the first air flow and the second air flow across the heating coil.

Abstract: A heating, ventilation, and air conditioning (HVAC) system includes a reheat valve configured to receive a refrigerant flow and regulate division of the refrigerant flow provided to a reheat coil and a condenser. The HVAC system also includes a condenser fan configured to draw a flow of outdoor air across the condenser and a controller communicatively coupled to the reheat valve and the condenser fan. The controller is configured to monitor a position of the reheat valve and to control operation of the condenser fan based on a correspondence between the position of the reheat valve and a threshold degree of opening.

Abstract: A furnace for a heating, ventilation, and/or air conditioning (HVAC) system includes a first set of heat exchanger tubes positioned within an air flow path of the furnace through which an air flow may be directed, a second set of heat exchanger tubes positioned within the air flow path of the furnace, and a deflector baffle positioned within the air flow path and configured to direct a portion of the air flow toward the second set of heat exchanger tubes. The first set of heat exchanger tubes, the deflector baffle, and the second set of heat exchanger tubes are each respectively offset from one another in a direction of the air flow along the air flow path.

Abstract: A fan shroud for a heating, ventilation, and/or air conditioning (HVAC) unit may include an outer wall to couple to a housing of the HVAC unit and an inner wall disposed within the outer wall. Additionally, the inner wall may be air permeable. The fan shroud may also include an acoustic damping material disposed between the outer wall and the inner wall. The fan shroud may encircle a fan of the HVAC unit to reduce noise.

Abstract: An intake hood system for a heating, ventilation, and/or air conditioning (HVAC) unit includes an intake hood having an inlet configured to receive an air flow into the intake hood, a first support configured to engage a first end of an air filter, and a second support configured to engage a second end of the air filter, where the first support is configured to align with a boundary of the inlet. The intake hood system also includes a lock bar configured to couple to the intake hood while abutting the first support and the second support to secure the air filter within the intake hood.

Abstract: A heating, ventilation, and air conditioning (HVAC) system includes a housing and a heat exchanger disposed within the housing. The heat exchanger includes a plurality of tubes where the plurality of tubes extends from a first end to a second end of the heat exchanger. The heat exchanger also includes a plurality of fins coupled to and extending between the plurality of tubes. The heat exchanger further includes a first end sheet disposed at the first end of the heat exchanger and a second end sheet disposed at the second end of the heat exchanger. The heat exchanger also includes a plurality of intermediate sheets disposed between the first end sheet and the second end sheet, where the plurality of tubes extends through each intermediate sheet of the plurality of intermediate sheets, and each intermediate sheet of the plurality of intermediate sheets is coupled to the housing.

Abstract: A wall panel assembly for a heating, ventilation, and air conditioning (HVAC) unit includes a panel having a main body, where the panel is configured to be fastened to a frame of the HVAC unit, and a plurality of stiffeners attached to the panel along a perimeter of the main body. A stiffener of the plurality of stiffeners includes a flat portion and a raised portion offset from the flat portion, where the raised portion is configured to sealingly engage with a component disposed within the HVAC unit.

Abstract: A heater assembly for a heating, ventilation, and/or air conditioning (HVAC) system has a heater and a controller enclosure. The heater has a plurality of heating elements in a frame that has two opposing ends. The controller enclosure has two end walls and a plurality of side walls in a non-rectangular polygonal configuration. One of the two opposing ends of the frame is coupled to one of the two end walls such that an orientation of the heating elements may be changed based on respective locations of the plurality of side walls of the controller enclosure.

Abstract: An adjustable filter track system a filter track having a recess configured to receive a filter, and a frame having a first coupling feature configured to couple to the filter track in a first configuration and a second coupling feature configured to couple to the filter track in a second configuration, where the filter track and the frame are configured to hold the filter in place within the recess, and where the filter track is adjustable between the first configuration and the second configuration to accommodate different thicknesses of the filter.

Abstract: A heating, ventilation, and air conditioning (HVAC) system includes a reheat valve configured to receive a refrigerant flow and regulate division of the refrigerant flow provided to a reheat coil and a condenser. The HVAC system also includes a condenser fan configured to draw a flow of outdoor air across the condenser and a controller communicatively coupled to the reheat valve and the condenser fan. The controller is configured to monitor a position of the reheat valve and to control operation of the condenser fan based on a correspondence between the position of the reheat valve and a threshold degree of opening.

Abstract: A partition wall for a heating, ventilation, and air conditioning (HVAC) system includes a frame defining a perimeter of the partition wall, and one or more panels extending within the frame. Each of the one or more panels comprises a flange configured to abut another of the one or more panels or the frame to provide a substantially air-tight engagement there between.

Abstract: A fabric comprising one or more manmade yarns and one or more natural yarns, wherein the one or more manmade yarns comprise more than 50% by weight of the total yarn of the fabric. The manmade yarn is preferably made of polyester fibers and the natural yarn is preferably made of cotton fibers. The cotton yarn may be any of 100% cotton, Indian cotton, Egyptian cotton, Pima cotton, Supima cotton, and cotton mixed with a manmade or a cellulosic fiber. The polyester yarn may be any of 100% polyester, polyester mixed with another manmade fiber, a texturized or multi-texturized polyester yarn, and polyester mixed with cotton or cellulosic fiber. The warp yarn or yarns may be a combination of one or more manmade yarns and one or more natural yarns, and the weft yarn or yarns comprise a combination of one or more manmade yarns and one or more natural yarns.

Abstract: The present disclosure relates to a heating, ventilating, and air conditioning (HVAC) unit configured to supply conditioned air to a conditioned space. The HVAC unit includes a first exhaust fan capable of operating at variable speeds and a second constant-speed fan. The HVAC unit also includes a controller configured to determine a target airflow to be provided to the conditioned space, cause actuation of the first exhaust fan at a variable fan speed when the target airflow is greater than zero, and cause actuation of the second exhaust fan when the target airflow is greater than an airflow threshold.

Abstract: Embodiments of the present disclosure are therefore directed toward a condenser section that is configured to draw an air flow into the condenser section, a control section configured to enclose electrical components, and a partition extending between the condenser section and the control section. The partition may include a first air passage and a second air passage formed therein, where the first air passage is configured to enable a portion of the air flow to flow from the condenser section into the control section to cool the electrical components and the second air passage enables the portion of air flow to from the control section to the condenser section.

Abstract: A heating, ventilation, and air conditioning (HVAC) unit includes a blower support frame and a condensate drain panel assembly. The blower support frame is configured to support one or more blowers of the HVAC unit. The condensate drain panel assembly includes a first condensate drain panel coupled to the blower support frame at a first angle relative to horizontal, a second condensate drain panel coupled to the blower support frame at a second angle relative to horizontal, and a cover panel. The condensate drain panel assembly is configured to direct condensate away from the blower support frame and towards a main condensate drain pan.