What is a common reason for the use of fire dampers in HVAC systems?

Fire dampers are crucial components in HVAC systems designed specifically to enhance safety by preventing the spread of fire through ductwork. When a fire occurs, it generates heat and smoke that can travel through ventilation systems, potentially spreading to different areas of a building. The primary function of fire dampers is to close automatically when they sense high temperatures, thus compartmentalizing the building and helping to contain the fire to its originating area.

This system not only protects the integrity of the building structure but also enhances the safety of its occupants by reducing the likelihood of smoke inhalation and fire hazards spreading throughout the facility. While other aspects of HVAC operation may aim to improve efficiency or manage humidity, the critical role of fire dampers is focused on fire prevention and life safety, making this function paramount in the design of HVAC systems.