LiftMaster Fire Door Operators

In the event of an emergency, every second counts. LiftMaster fire alarms and detection systems will alert you at the first signs of danger, so you can make sure everyone reaches safety quickly. LiftMaster Fire Door Release Operators work with your alarm system providing a fail-safe release mechanism for your fire door or fire shutter.

Adams Door Company is Your authorized LiftMaster Distributor and we install & service all Liftmaster Fire Door Release Systems & accessories anywhere in the Buffalo, NY area and Western New York. Call 716-895-9245

The LiftMaster LM21AFCB 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 module can power up to 4 smoke detectors and 2 horn/strobe or speaker/strobe alarms.

LiftMaster LM21AFCB Fire Door Release Device Features:

The LiftMaster LM21AFCB unit combines state-of-the-art functionality and advanced features typically found only on special custom-order fire door operators:

• UL864 Revision 9 Compliant
• Programmable DIP Switch Delay Setting (10, 20, 30, or 60 seconds fire door release delay)
• 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
• Voice Board can broadcast a pre-recorded evacuation message

LiftMaster LM21AFCB Fire Door Release Device

The LiftMaster LM21XPBB Fire Door Release Device provides the functionality of a standalone fire alarm system, including battery backup for facilities prone to power outages or installations where the existing fire alarm system is unable to support a fire door release system.

The LM21XPBB 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. This system can provide 24VDC power for up to 4 smoke detectors and 2 horn/strobe alarms, mounted on either side of the door.

LiftMaster LM21AFCB Fire Door Release Operator Features:

The LM21XPBB system comes with standard programmable delay settings, close door detection, diagnostic LEDs, localized testing, and reset capabilities:

• UL864 Revision 9 Compliant
• Programmable DIP Switch Delay Setting (10, 20, 30, or 60 seconds fire door release delay)
• 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
• Onboard Diagnostic LEDs for easy troubleshooting
• Testing Function allows routine fire door testing without requiring activation of the smoke detector
• Optional Model LM21XPBBVB Voice Board can broadcast a pre-recorded evacuation message

LiftMaster LM21XPBB Fire Door Release Operator