Which type of fire damper has the ability to cycle under non-fire conditions?

Which type of fire damper has the ability to cycle under non-fire conditions?

• A. Single-blade damper
• B. Multi-blade damper with actuator
• C. Gravity damper
• D. Static damper

Answer: (B)

The multi-blade damper with an actuator is designed to operate under non-fire conditions, allowing it to cycle and adjust airflow as needed. This capability is essential because it provides both fire and smoke control features while also enabling regular operational functionality within an HVAC system. The actuator allows for precise control, which is crucial for managing air distribution and maintaining a comfortable and safe indoor environment. In contrast, other types of dampers, such as static dampers, do not have moving parts and remain fixed, thus they do not operate under normal conditions. Gravity dampers rely on gravity to close, and while they may function during a fire situation, they do not provide active control under regular conditions. Single-blade dampers may allow for airflow regulation but typically lack the complex operation and control mechanisms of a multi-blade damper with an actuator. The design and functionality of the multi-blade damper with an actuator make it the optimal choice for an application requiring cycling under normal operations.

The multi-blade damper with an actuator is designed to operate under non-fire conditions, allowing it to cycle and adjust airflow as needed. This capability is essential because it provides both fire and smoke control features while also enabling regular operational functionality within an HVAC system. The actuator allows for precise control, which is crucial for managing air distribution and maintaining a comfortable and safe indoor environment.

In contrast, other types of dampers, such as static dampers, do not have moving parts and remain fixed, thus they do not operate under normal conditions. Gravity dampers rely on gravity to close, and while they may function during a fire situation, they do not provide active control under regular conditions. Single-blade dampers may allow for airflow regulation but typically lack the complex operation and control mechanisms of a multi-blade damper with an actuator. The design and functionality of the multi-blade damper with an actuator make it the optimal choice for an application requiring cycling under normal operations.