SFD-01: 280 ℃ smoke exhaust fire damper requirements: normally open. 280 ℃ fuse and shut down, output a shutdown signal to the fire automatic alarm system, and at the same time interlock to shut down the fan.
Sfd-01: 280 ℃ smoke exhaust fire damper requirements: normally open. The 280 ℃ fuse is closed, the closing signal is output to the automatic fire alarm system, and the fan is interlocked and closed at the same time.
SFD-01: 280℃ smoke exhaust fire damper requirements: normally open. Fuse at 20℃ to shut down, output the shutdown signal to the automatic fire alarm system, and interlock to shut down the fan.