Disclosed are a damper switch mounted on a damper having a blade opening/closing structure to open/close blades of the damper, and a damper including the same. The damper switch configured to open/close a plurality of blades of a damper according to the present invention includes a rotating part mounted on a damper shaft of the damper and rotated together with the damper shaft, a driving part configured to provide a power for rotating the rotating part, and a controller configured to measure a load applied to the driving part when the blades are closed, and interrupt an electric power supplied to the driving part when the measured load is not less than a predetermined value.

A ventilation panel for an enclosure of an industrial machine is disclosed herein. In embodiments, the ventilation panel includes a panel silencer and a fire damper assembly. The panel silencer includes a number of panels joined together to form an internal cavity and a front panel opening that provides access into the internal cavity. The fire damper assembly partially inserts into the panel silencer. The fire damper assembly includes a plurality of isolation louvers and an actuation assembly. The plurality of isolation louvers are rotatably affixed within the fire damper assembly. The actuation assembly rotates the plurality of isolation louvers into a closed position when activated.

A real-time damper visual verification device and system for use in combination with a HVAC duct structure includes a camera being structured and disposed for generating image signals in response to an optical image and the camera being in connection with a computer processor for generating the optical image and a real-time clock display; the camera being positioned for viewing the damper blades of the HVAC duct structure; wherein a verification procedure includes operating of the plurality of damper blades between first and second movements, the first movement defining the damper blades moving from an open position to a closed position and the second movement defining the damper blades moving from a closed position and an open position; and in which the camera records the optical images of the first and second movements to provide a true visual verification of operation of the damper blades between the first and second movements.

A real-time damper visual verification device and system for use in combination with a HVAC duct structure includes a camera being structured and disposed for generating image signals in response to an optical image and the camera being in connection with a computer processor for generating the optical image and a real-time clock display; the camera being positioned for viewing the damper blades of the HVAC duct structure; wherein a verification procedure includes operating of the plurality of damper blades between first and second movements, the first movement defining the damper blades moving from an open position to a closed position and the second movement defining the damper blades moving from a closed position and an open position; and in which the camera records the optical images of the first and second movements to provide a true visual verification of operation of the damper blades between the first and second movements.

An inspection system for an HVAC device includes an HVAC duct section, a damper positioned with the duct section, an actuator for selectively moving the damper to a closed position, and a verification camera for recording the position of the damper with a date stamp and a time stamp. The actuator is further configured to move the damper to its open position, and the verification camera is further configured to record the open position of the damper with a second date and time stamp.

A ventilation fan according to the invention comprises a fan module, a fire damper module and a cover module. The fan module comprises a housing having an air intake and an air outtake. The fire damper module is disposed in the air intake and comprises a fire damper body and an adjustment element. The fire damper body has a flange extending inwardly on the inner surface thereof and the flange has an opening. The adjustment element is disposed near the opening and on one closer side of the flange to the fan module. The cover module is disposed on the fire damper module.

A ventilation fan according to the invention comprises a fan module, a fire damper module and a cover module. The fan module comprises a housing having an air intake and an air outtake. The fire damper module is disposed in the air intake and comprises a fire damper body and an adjustment element. The fire damper body has a flange extending inwardly on the inner surface thereof and the flange has an opening. The adjustment element is disposed near the opening and on one closer side of the flange to the fan module. The cover module is disposed on the fire damper module.

An energy storage system according to one or more embodiments of the present disclosure includes: a container; a plurality of accommodation portions in the container and configured to accommodate a battery rack or an air conditioner; a partition wall between each pair of adjacent accommodation portions; a ventilation hole passing through the partition wall and connecting with the adjacent accommodation portions; and a blocking member configured to selectively open or close the ventilation hole.

An energy storage system according to one or more embodiments of the present disclosure includes: a container; a plurality of accommodation portions in the container and configured to accommodate a battery rack or an air conditioner; a partition wall between each pair of adjacent accommodation portions; a ventilation hole passing through the partition wall and connecting with the adjacent accommodation portions; and a blocking member configured to selectively open or close the ventilation hole.

There is described an actuator for a damper comprising an electrical circuit, a cable coupled to the electrical circuit, a lower housing supporting the electrical circuit, and an upper housing coupled to the lower housing. The electrical circuit controls positions of the damper. The cable provides power and control to the electrical circuit. The lower housing includes a first trough and a second trough to provide support for the cable in a first direction. The upper housing includes a first protuberance and a second protuberance to provide support for the cable in a second direction. The first and second protuberances are positioned offset from the first and second troughs of the lower housing.