Abstract: A ventilation assembly having a moveable trim moveable between an open position in which the moveable trim defines a gap with a ceiling trim to allow movement of fluid and a closed position in which the moveable trim is against or adjacent to the ceiling trim to eliminate or reduce the gap and prevent or limit fluid flow.

Abstract: According to an aspect of the present disclosure, a ventilation system includes at least one user directed component and a plurality of sensors configured to detect a plurality of control gestures within a gesture field designated for presentation of control gestures by a user. The ventilation system may further be configured such that a control gesture of the plurality of control gestures is presented within the gesture field for detection of said control gesture by the plurality of sensors, and the plurality of sensors recognizes the control gesture as corresponding to an operation of the at least one user directed component. The ventilation system may still further include a controller for polling the plurality of sensors and converting a recognized control gesture to a command signal for operating the at least one user directed component.

Abstract: A range hood for a microwave includes a range-hood mount and a pair of hood slides coupled to the range-hood mount. Each hood slide includes portions that are configured to move relative to the range-hood mount between a retracted position and an extended position. The range hood further includes an expandable hood extension coupled to the pair of slides and configured to move from a collapsed configuration, when the pair of slides are arranged in the retracted position, to an expanded configuration, when the pair of slides are in the extended position.

Abstract: A flush-mounted, in-ceiling exhaust fan grille for attachment to an exhaust fan housing includes a planar integration flange forming a perimeter of the grille. The integration flange includes a plurality of through holes along the perimeter. An insert may be configured for insertion within the perimeter of the integration flange. A light module may be configured to join within a central portion of the insert while maintaining an opening between an entirety of the light module and the insert. At least one spring may be attached to the insert on a first end and attached to the fan housing on a second end, wherein the at least one spring applies a force drawing the insert towards the fan housing. An exhaust fan may be provided to draw air into the fan housing through the opening between the light module and the insert to be exhausted for proper ventilation.

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 ventilating system includes a main housing defining an inlet configured to receive air into the main housing and an outlet configured to allow the air to exit the main housing. The system further includes a fan in the main housing and configured and arranged to generate a flow of air into the main housing through the inlet and from the main housing through the outlet. The system further includes a grille configured to be coupled to the main housing, a plate configured to be coupled to the grille, and a lens coupled to the plate.

Abstract: A venting system in accordance with the present disclosure includes a ventilation fan and one or more sensors coupled to the ventilation fan. The ventilation fan is positioned to vent air from an indoor environment. The sensors are positioned to monitor conditions in the indoor environment and selectively operate the ventilation fan to condition air in the indoor environment.

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: A combined ventilation and illumination system includes a ventilation assembly, a light fixture assembly, and a connector assembly. In an installed position, the system is installed above a ceiling of a room of building structure (e.g., a residence or workplace) to provide ventilation for the room. The system couples a light fixture to ventilation assembly below the ceiling. In the installed position, an air flow cavity is defined between the light fixture and the ceiling, where the cavity allows for air flow around the light fixture and into the ventilation assembly for eventual exhaust beyond the room in which the system is installed. The cavity includes a first critical distance that is sized according to operating parameters of a blower of the ventilation assembly to provide an adequate flow rate of intake air and to provide acceptable sound levels during operation of the system.

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.