The Fan Status and Control Annunciator, the FS Series, is designed for use in high-rise buildings and other facilities that must have a means to manually control the fans or dampers designated for smoke removal during a fire emergency. The unit is designed to work in conjunction with fire alarm and control systems to provide visual status and manual control capability for each smoke removal fan.
When the switches are in the “AUTO” position, the system fans will be monitored only. During a fire emergency, the fire alarm system will operate the fans as per the smoke removal system design. Should conditions warrant manual control, and at the command of the authority having jurisdiction, the annunciator can be used to provide specific control of each smoke removal fan.