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Release Devices

LM21XPBB

The XPBB release device provides the functionality of a standalone fire alarm system including battery backup for installations prone to power outages or the existing alarm system is unable to support the door release system. Internal Battery Backup allows the release device to stand alone from the fire alarm system and act independently in the event of a power outage. The system can provide 24VDC power for up to four smoke detectors and two horn/strobes, mounted on either side of the door. Programmable delay settings, close door detection, diagnostic LEDs, localized testing, and reset capabilities are also standard.
  • UL864 Revision 9 compliant
  • Programmable DIP switch delay setting – either 10, 20, 30, or 60 seconds delay of door release to permit passage clearance
  • Inputs for normally open 2- or 4-wire detectors and 4-wire normally closed detectors
  • Trouble and alarm relays for communication with the fire alarm control panel, if required
  • Audible trouble sounder to indicate when the release device is not operational
  • On board diagnostic LEDs for easy troubleshooting
  • Testing function allows routine fire door testing without requiring activation of the smoke detector
  • Model LM21XPBBVB is equipped with a voice board to broadcast a pre-recorded voice evacuation message

LM21AFCB

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