A modular damper system is configured for installation in a ductwork of a building that supplies conditioned air through a register vent of the building and includes a damper unit, a control module and a power module. The damper unit is mountable upstream of the register vent and includes a damper that is movable between a closed position and an open position. The control module includes a controller that provides control commands to the damper unit and includes a housing that is configured to be secured to the ductwork at a position between the register vent and the damper unit. A power module is electrically coupled to the control module to provide power to the control module and includes a housing that is configured to be secured to the ductwork at a position between the register vent and the damper unit.

Various embodiments include a device securing an actuating drive on a duct outer face of an HVAC duct against rotation. The actuating drive includes an actuator for driving an actuation connection about an actuation axis. The actuation connection interacts with a flap arranged in the ventilation duct to set a gaseous volumetric flow. The actuating drive includes a housing with a ledge formed on a bottom side of the housing and surrounding the actuation connection coaxially relative to the actuation axis. The housing bottom side lies opposite the duct outer face. The device may include: a fastening part for fastening to the outer face; and a fork-shaped receptacle formed at an end. The receptacle geometrically matches a radial outer face of the housing ledge such that after lateral sliding onto the outer face of the ledge, the receptacle fixes said ledge and thus the actuating drive against rotation.

An air duct switching component having an air outlet cover defining an air inlet, a first air outlet and a second air outlet, and being arranged such that the air inlet communicates with a fan air outlet; and an air switching plate disposed on the air outlet cover, configured to move between a first position to close the first air outlet and to open the second air outlet and a second position to open the first air outlet and to close the second air outlet, and wherein in the first position, the fan air outlet communicates with a body air outlet via the air inlet and the second air outlet, and wherein the first air outlet is disposed relative to a humidifier such that in the second position, the fan air outlet communicates with the body air outlet via the air inlet, the first air outlet and the humidifier.

A drive unit (1) for actuating a plurality of functions of an air vent system or of an air distribution system, having an electric motor drive (3) with a drive shaft which can be driven in a first rotational direction or in a second rotational direction, and a switching mechanism with at least one first and one second output shaft (5), via which functions of the air vent system can be actuated, the switching mechanism being configured, during a drive of the drive shaft in the first rotational direction, to transmit a torque from the drive shaft only to the first output shaft (5), and, during a drive of the drive shaft in the second rotational direction, to transmit a torque from the drive shaft only to the second output shaft (5).

An environment control system includes a louver (20a), a motor (21), a temperature sensor (40), a determination unit (53), and a control unit (55). The determination unit (53) determines a position of a person in a particular area on the basis of data of surface temperatures detected by the temperature sensor (40). The control unit (55) controls the motor (21) in such a manner that an angular velocity of the louver (20a) becomes smaller as the position determined by the determination unit (53) is farther from the outlet (18b) when air from an outlet (18b) is blown toward the position.

A glass integrated fan assembly for enabling a closed sliding door to ventilate a structure includes a door module or window module, which comprises a frame and a glass pane. The glass pane is engaged to the frame. The frame is positionable in an opening in a structure and can engage the structure so that the glass pane closes the opening. The glass pane has an aperture positioned therein. A fan unit is positioned in the aperture and is engaged to the glass pane. The fan unit can be used to ventilate an interior space of the structure. A panel is slidably engaged to the glass pane. The panel is selectively slidable from an open configuration, wherein the panel is positioned adjacent to the aperture, to a closed configuration, wherein the panel closes the aperture.

A Fluid Flow Control System (FFCS) door assembly includes a continuous belt and a plurality of rollers. The plurality of rollers support the continuous belt and define a first segment, a second segment, a third segment, and a fourth segment. The continuous belt includes a plurality of openings that selectively allow fluid flow to pass through the first segment, the second segment, the third segment, and the fourth segment when two openings of the plurality of openings align with the first segment, the second segment, the third segment, or the fourth segment.

An HVAC actuator (10), comprising: an electric motor (20) configured to move an actuated part (40) coupled to the electric motor (20); an electronic circuit (12) connected to the electric motor (20) and configured to control the electric motor (20); and an energy storage element (22) configured to provide electrical energy to the HVAC actuator (20) in absence of external power supply, wherein the electronic circuit (12) is further configured to receive operating commands directed to the actuated part (40), and to control the electric motor (20) to move the actuated part (40), responsive to the operating commands received in absence of external power supply.

An animal house climate control system uses a method for operating a baffle of an air inlet of an animal house with a motor using timed inlet control. The method includes performing a calibration sequence to calculate opening velocity and opening inertia values and closing velocity and closing inertia values. The method also includes moving the baffle from an initial position to a final position by calculating a calculated power on time for the motor using the opening inertia or closing inertia values. The method can also include calculating a real position error value by comparing the calculated on time for the motor and a measured on time for the motor and using the real position error value to calculate adjusted opening and closing velocity values.

An air conditioner includes a housing having a discharge port, a blade rotatably provided in the discharge port, a blade drive unit configured to rotate the blade, a first support member configured to rotatably support the blade and comprising a first blade coupling portion, a second support member configured to rotatably support the blade, located to be closer to the blade drive unit than the first support member, and comprising a second blade coupling portion having a size different from that of the first blade coupling portion.