All fire safety systems must be regularly and professionally maintained to ensure the safety of building occupants – a faulty fire damper will not prevent the spread of fire. ... A fire damper test requires a visual inspection of the fire damper and a drop test.

What does a fire damper do?

In general a fire damper works when heat from a fire causes the normal temperature of a room to rise to approximately 165 degrees Fahrenheit i.e. it is designed to close automatically on the detection of heat. The fusible link which is attached to the damper melts causing the dampers' door to close.

How often do fire dampers need to be tested?

NFPA 105(10), Sec. 6.5. 2 requires that each damper be tested and inspected 1 year after installation and that the test and inspection frequency then be every 4 years, except for hospitals, where the frequency is allowed to be every 6 years.