AlarmGard® Chain and Crank Operators

Model Number: Fail-Safe Fire Door Operator

AlarmGard manual operators are available in both a chain and crank and can be used on fire doors, insulated fire doors and counter fire shutters. As with all the operators in the AlarmGard family, they will automatically activate your fire closure during a building alarm, smoke detector activation or power failure. The AlarmGard chain or crank close the door at a controlled speed when activated, to keep those near the door safe. Once the door is in the closed position, it compartmentalize the building to prevent the smoke and fire from spreading through out the the rest of the building. 
 
A benefit of the AlarmGard chain and crank is that it has a built in automatic reset release device, which mean that an external releasing device is not required - this eliminates the need for costly wiring.  

The AlarmGard manual operators will require 120 Volt AC, 24 Volt AC or 24 Volt DC power from an external source or central alarm system. 

Battery backup is also an option for this manual operator. This will allow the door in the open position for up to 8 hours, preventing unwanted drops due to temporary power outages. The batter back up can also be used to power the local smoke detector.