Abstract: A damper of a heating, ventilation, and/or air conditioning (HVAC) system includes a crank configured to rotate about an axis of a shaft relative to a support, a reset arm configured to rotate about the axis of the shaft relative to the support, a spring coupled to the crank and the reset arm, and a fuse link configured to be coupled to the reset arm and the support in a set configuration and to release the reset arm from the support in response to a temperature exceeding a threshold temperature. The crank and the reset arm are configured to rotate away from the support in a first circumferential direction toward a closed configuration in response to the fuse link releasing the reset arm from the support. A spring force of the spring is configured to increase to enable the reset arm to rotate in a second circumferential direction opposite to the first circumferential direction beyond the set configuration and into a reset configuration.

Abstract: A damper of a heating, ventilation, and/or air conditioning (HVAC) system includes a damper blade having a blade body with a hollow portion extending to an end of the blade body. The damper also includes an axle defining an axis about which the damper blade is configured to rotate, where the axle extends from the end of the blade body. The damper also includes a spring thrust bearing having a spring thrust bearing opening through which the axle extends. The spring thrust bearing is configured to support an axial load of the damper blade. The damper also includes an end cap disposed within the hollow portion of the blade body such that the end cap is flush with the end of the blade body.

Abstract: A damper of a heating, ventilation, and/or air conditioning (HVAC) system includes a crank configured to rotate about an axis of a shaft relative to a support, a reset arm configured to rotate about the axis of the shaft relative to the support, a spring coupled to the crank and the reset arm, and a fuse link configured to be coupled to the reset arm and the support in a set configuration and to release the reset arm from the support in response to a temperature exceeding a threshold temperature. The crank and the reset arm are configured to rotate away from the support in a first circumferential direction toward a closed configuration in response to the fuse link releasing the reset arm from the support. A spring force of the spring is configured to increase to enable the reset arm to rotate in a second circumferential direction opposite to the first circumferential direction beyond the set configuration and into a reset configuration.

Abstract: A single piece roll-formed frame comprising a first channel having a base section and one or more legs, each leg comprising an upper side extending from the base section at a first angle and a lower side extending from the upper side at a second angle, a second channel having a base section and one or more legs, each leg comprising an upper side extending from the base section at the first angle and a lower side extending from the upper side at the second angle and wherein the base section of the first channel and the base section of the second channel are formed from a single piece and intersect to form a third angle, and the upper side of each leg of the first channel overlaps the upper side of each leg of the second channel.

Abstract: A single piece roll-formed frame comprising a first channel having a base section and one or more legs, each leg comprising an upper side extending from the base section at a first angle and a lower side extending from the upper side at a second angle, a second channel having a base section and one or more legs, each leg comprising an upper side extending from the base section at the first angle and a lower side extending from the upper side at the second angle and wherein the base section of the first channel and the base section of the second channel are formed from a single piece and intersect to form a third angle, and the upper side of each leg of the first channel overlaps the upper side of each leg of the second channel.

Abstract: A single piece roll-formed frame comprising a first channel having a base section and one or more legs, each leg comprising an upper side extending from the base section at a first angle and a lower side extending from the upper side at a second angle, a second channel having a base section and one or more legs, each leg comprising an upper side extending from the base section at the first angle and a lower side extending from the upper side at the second angle and wherein the base section of the first channel and the base section of the second channel are formed from a single piece and intersect to form a third angle, and the upper side of each leg of the first channel overlaps the upper side of each leg of the second channel.