What is the minimum temperature that the fire damper actuation device must not fall below?

The minimum temperature that the fire damper actuation device must not fall below is 160 degrees. This temperature is established to ensure that the damper will activate properly in the event of a fire. Fire dampers are critical components in HVAC systems as they help prevent the spread of fire and smoke through ducts.

When a fire occurs, the heat generated is the primary signal to activate the damper and close off airflow, which can help limit the spread of smoke and flames to other areas of a building. A temperature threshold of 160 degrees Fahrenheit is mandated because it is sufficiently high to indicate that fire conditions exist, and it is designed to avoid premature activation from lower heat sources that might not indicate an actual fire. This ensures that the fire damper remains operational during a genuine emergency, providing effective protection within the structure and maintaining safety for occupants.

By having these specifications, codes ensure a high level of safety and reliability in fire scenarios, which is why 160 degrees is the correct temperature for damper activation devices.