What is the role of the smoke damper in HVAC systems?

The smoke damper plays a crucial role in fire protection within HVAC systems by preventing the spread of smoke and contaminants through ducts. In the event of a fire, smoke dampers automatically close in response to smoke detection, sealing off sections of the ductwork. This containment is essential for protecting occupants, limiting smoke damage, and maintaining safe egress paths within a building. By effectively controlling the movement of smoke, these dampers help to ensure compliance with safety codes and standards, thereby enhancing the overall safety of the HVAC system in emergency situations.