Strobes flash on alarm floor, floor above, floor below, and bridge level lobby
Stair pressurization fans are activated and HVAC on alarm floor is shut off
If smoke is detected on bridge level (2nd floor) low rise elevator lobby, low rise elevators are directed to the 4th floor. If it detected on the bridge level high rise elevator lobby, all high rise elevators are directed to the 15th floor.
If smoke is detected in any elevator lobby (excludes bridge level), elevators are called to the bridge level (2nd floor).
Smoke in duct work
Voice EVAC sounds
Strobes flash on alarm floor, floor above, floor below, and bridge level lobby
Stair pressurization fans are activated and HVAC on alarm floor is shut off
Elevators continue to operate
Pull stations
Voice EVAC sounds
Strobes flash on alarm floor, floor above, and the floor below.
Stair pressurization fans are activated and HVAC on alarm floor is shut off
