What is the primary purpose of fusible links in dampers?

What is the primary purpose of fusible links in dampers?

• A. To automate damper movement
• B. To securely fasten the damper
• C. To ensure the damper closes in a fire
• D. To provide a manual override option

Answer: (C)

The primary purpose of fusible links in dampers is to ensure the damper closes in a fire. Fusible links are designed to melt at a specific temperature, typically between 165°F and 212°F. When a fire occurs, the heat causes the fusible link to melt, which then releases the damper blade. This action allows the damper to close automatically, thereby preventing the spread of smoke and fire through the HVAC system and helping to protect other areas of the building, allowing for safer evacuation and minimizing damage. The role of fusible links is crucial in maintaining the integrity of fire-rated walls and partitions within a building. They are an essential component of the life safety strategy in fire prevention, working seamlessly to enhance the effectiveness of the fire protection system. By facilitating the automatic closure of the damper during a fire, fusible links play a key role in controlling smoke movement and protecting occupants and property.

The primary purpose of fusible links in dampers is to ensure the damper closes in a fire. Fusible links are designed to melt at a specific temperature, typically between 165°F and 212°F. When a fire occurs, the heat causes the fusible link to melt, which then releases the damper blade. This action allows the damper to close automatically, thereby preventing the spread of smoke and fire through the HVAC system and helping to protect other areas of the building, allowing for safer evacuation and minimizing damage.

The role of fusible links is crucial in maintaining the integrity of fire-rated walls and partitions within a building. They are an essential component of the life safety strategy in fire prevention, working seamlessly to enhance the effectiveness of the fire protection system. By facilitating the automatic closure of the damper during a fire, fusible links play a key role in controlling smoke movement and protecting occupants and property.