The air handling unit (AHU) for a corridor must be shut down by what in certain situations?

The correct response involves the use of smoke detectors to shut down the air handling unit (AHU) for a corridor in specific situations. Smoke detectors are vital components of fire safety systems, designed to detect the presence of smoke and, consequently, a fire.

When smoke is detected, these devices can automatically signal the AHU to shut down, which helps to prevent the spread of smoke and fire throughout the building via the ductwork. This operational protocol is essential for maintaining a safe environment, as it minimizes the risks associated with smoke inhalation and helps both occupants and first responders in managing the emergency situation effectively.

Pressure sensors, heat detectors, and fire alarms serve different purposes within the fire safety framework. While pressure sensors monitor airflow and maintain system balance, heat detectors activate based on temperature changes rather than smoke presence. Fire alarms are the alert mechanism for occupants but do not directly control AHUs. Thus, in the context of managing air handling units and fire safety in corridors, smoke detectors play the critical role of initiating a shutdown to safeguard the area during a fire incident.