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The AFCB fire door release device works in conjunction with a standard, commercial electromechanical or solid-state operator to create an enhanced, yet economical, fire door operating system.

All LiftMaster Openers and Operators should be purchased through a Dealer and professionally installed.

Features

The AFCB fire door release device works in conjunction with a standard, commercial electromechanical or solid-state operator to create an enhanced, yet economical, fire door operating system. For use with motorized doors incorporating a reversing electric safety edge. This 120VAC device can power up to four smoke detectors and two horn/strobes or speaker/strobes. This system combines state-of-the-art functionality and advanced features typically found on special-order fire door operators.
  • UL864 Revision 9 compliant
  • Programmable DIP switch delay setting - either 10, 20, 30, or 60 seconds delay of door release to permit passage clearance
  • Internal Battery Backup system
  • Obstruction cycling - works in conjunction with the door's electrical safety edge, reversing the door if an obstruction is encountered
  • Motor voltage sensing
  • Test keyswitch - permits floor-level testing of the system
  • Model LM21AFCBVB is equipped with a voice board to broadcast a pre-recorded evacuation message

Customer Reviews