Abstract: A ventilation system in accordance with the present disclosure includes a housing and a core unit arranged in the housing. A fresh air inlet, an exhaust air inlet, a fresh air outlet, and an exhaust air outlet are arranged on the housing. The core unit is arranged between the inlets and outlets to transfer heat and/or humidity between fresh air and exhaust air flowing through the ventilation system. The exhaust air flows through ducting to an exhaust port in a wall of a building structure.

Abstract: A ventilation system includes a main housing defining an internal region and a blower contained within the internal region. The ventilation system is positioned adjacent to a room of a building structure and is configured to draw air out of the room to provide ventilation. The ventilation system further includes a grille secured relative to the main housing using an attachment feature.

Abstract: A ventilation system with automatic flow balancing derived from a neural network to consistently achieve a desired flow rate for inlet flow and/or outlet flow in various operating environments to optimize system performance. The system includes a ventilation device that includes an exhaust blower assembly with a blower motor and a control circuit having a mathematical equation that determines an estimated exhaust blower flow based upon select inputs. The ventilation device also includes a supply blower assembly with a blower motor and control circuit having a mathematical equation that determines an estimated supply blower flow based upon select inputs. When the estimated exhaust blower flow is different than an exhaust flow set point, the exhaust control circuit selectively alters power supplied to the exhaust motor. When the estimated supply blower flow is different than a supply flow set point, the supply control circuit selectively alters power supplied to the supply motor.

Abstract: A ventilation assembly and methods of forming the same includes a ventilation grille having reducing acoustic bodies configured to attenuate sound of the ventilation assembly. Arrangement of the acoustic bodies can form phononic crystal to attenuate sound and can be tuned to desired sound bands to reduce sounds.

Abstract: A sensor-enabled range hood can be used with a cooking appliance. Information from multiple sensors can be used to determine whether abnormal or hazardous conditions are present, such as when unattended cooking is detected. A local indication or a remote notification can be generated in response to one or more conditions. A control signal to control a cooking appliance or range hood can be issued in response to one or more conditions. A remediation signal to address an actual fire present can be issued, such as to trigger fire remediation.

Abstract: An energy recovery system for an air handling unit includes a support frame, an energy recovery wheel, and a wheel actuator. The support frame supports the energy recovery wheel within the air handling unit. The energy recovery wheel is configured to rotate about a rotation axis during operation. The wheel actuator is configured to drive the energy recovery wheel to rotate about the rotation axis.

Abstract: A control system and method for implementing control of a multi-modal lighting system. The system includes a lighting device and a mode control method/system. The mode control method/system initiates a first mode including generation of white light as a default. Then, after the multi-modal lighting system is activated, a second mode 114 is may be initiated and the multi-modal lighting system 102 remains activated.

Abstract: According to an aspect of this disclosure, a ventilation and lighting system including a main housing having an inlet opening and a discharge opening, a blower and motor assembly disposed within a housing and operable to move air through the inlet and outlet, a grille configured to be located at the inlet opening, the grille having a cavity and a plate defining a plurality of apertures through which air may move, and one or more lighting elements arranged within the cavity and an optical component covering the cavity. The system is arranged such that light developed by the one or more lighting elements mixes within the cavity and transmits through the optical component covering the cavity, and the system further includes a controller that coordinates operation of the blower and motor assembly and the one or more lighting elements from a remote location.

Abstract: A mounting bracket mountable to the underside of the cabinet prior to the range hood and configured to engage and support the range hood as the range hood is secured to the cabinet. The mounting bracket having a support feature engagable to the range hood to hold the range hood proximate the cabinet while fasteners are sunk to secure the range hood to the cabinet. The mounting brackets are pre-positioned on the cabinet such that range hood is aligned with the cabinet when the range hood is supported by the support feature. The smaller mounting brackets can be more easily mounted in the proper position on the cabinet then the larger range 10 hood speeding the installation process and reducing errors.

Abstract: The present disclosure describes a supply fan assembly including a controller, a memory operably coupled with the controller. The supply fan assembly further includes at least one environment sensor operably coupled with the controller and a fan supplying fresh air from an exterior environment into a structure according to instructions from the controller. Additionally, the operational data is generated by the at least one of the environment sensor and the controller, and the controller instructs the fan in response to the operational data generated during a pre-defined time period.

Abstract: A ventilation assembly and methods of forming the same includes a ventilation grille having reducing acoustic bodies configured to attenuate sound of the ventilation assembly. Arrangement of the acoustic bodies can form phononic crystal to attenuate sound and can be tuned to desired sound bands to reduce sounds.

Abstract: A ventilation grille having a trim ring and a plate releasably connected to the trim ring. The trim ring defines an aperture allowing connection of the trim ring to a main housing of a ventilation system defining an internal region in which a blower is located. The plate is releasably connected to the trim ring to allow access to the trim ring aperture for connection of the trim ring to the main housing or blower and disconnection of the trim ring from the main housing or blower.

Abstract: A damper control assembly includes a damper body movable between a first threshold position and a second threshold position. A motor is operably connected to the damper body, wherein the motor drives the damper between the first threshold position to determine an open position and the second threshold position to determine a closed position. A controller is operably connected to the motor and has a stall detection module that detects a first rotor-lock condition when the motor drives the damper body to the first threshold position and a second rotor-lock condition when the motor drives the damper body to the second threshold position. The controller includes a memory module for storing the first and second threshold positions for use by the controller. The damper control assembly is calibrated to drive the damper body within an operating range having the open and closed positions and that is less extensive than a mechanical range defined by the first and second threshold positions.

Abstract: A ventilation system includes a main housing defining an internal region and a blower contained within the internal region. The ventilation system is positioned adjacent to a room of a building structure and is configured to draw air out of the room to provide ventilation. The ventilation system further includes a grille secured relative to the main housing using an attachment feature.

Abstract: A ventilation and lighting system having a fan, a grille having one or more lighting elements and a controller that coordinates operation of the fan and the one or more lighting elements from a remote location. The controller defines scene control configured to define one or more scenes, each of which defines a predefined light control and fan control. The light control can have predefined settings of color, duration, intensity, saturation, and/or correlated color temperature. The fan control can have predefined settings of duration and/or power.

Abstract: The present disclosure describes a supply fan assembly including a controller, a memory operably coupled with the controller. The supply fan assembly further includes at least one environment sensor operably coupled with the controller and a fan supplying fresh air from an exterior environment into a structure according to instructions from the controller. Additionally, the operational data is generated by the at least one of the environment sensor and the controller, and the controller instructs the fan in response to the operational data generated during a pre-defined time period.