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LiftMaster Extended Performance Fire Door Release Device with Battery Backup

Item #: LM21XPBB

Manufacturer: Chamberlain, LiftMaster

List price: $575.00


Manuals & Brochures:
Installation Manual,
DETAILS
  • 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
  • Includes an integrated Battery Backup Module that allows this fire door release device to stand alone from the fire alarm system and act independently in the event of a power outage