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2
INTRODUCTION ...........................................2
General Description .........................................2
Agency Requirements .......................................2
Specifications .............................................3
Preparation ...............................................3
INSTALLATION ............................................4
Important Installation Warnings ...............................4
Mount the Release Device ....................................4
WIRING ..................................................5
Wiring Instructions .........................................5
Wire Routing ..............................................6
Wiring Diagram ............................................7
Connections of Initiating Devices and Accessories ................8
Optional Connections .......................................9
TESTING ................................................11
Test Procedures ..........................................11
TROUBLESHOOTING ......................................12
Operational Checklist ......................................12
Circuit Board Diagnostic LEDs ...............................13
Ground Fault Error .........................................13
MAINTENANCE ...........................................14
Maintenance Requirements .................................14
Enclosure Mounted LEDs Status Indicators .....................14
ACCESSORIES AND REPLACEMENT PARTS .................... 15
APPENDIX ...............................................16
Table of Contents
Introduction
When you see these Safety Symbols and Signal Words on the
following pages, they will alert you to the possibility of SERIOUS
INJURY or DEATH if you do not comply with the warnings that
accompany them. The hazard may come from something mechanical
or from electric shock. Read the warnings carefully.
When you see this Signal Word on the following pages, it will alert
you to the possibility of damage to your door and/or the door
operator if you do not comply with the cautionary statements that
accompany it. Read them carefully.
To prevent possible SERIOUS INJURY or DEATH:
• DO NOT use this device without fusible links installed.
• Test every 90 days to assure proper operation of release device.
Mechanical
Electrical
ENGLISH WARNINGS AT 50%
SPANISH WARNINGS AT 50%
FRENCH WARNINGS AT 50%
ENGLISH WARNINGS AT 50%
SPANISH WARNINGS AT 50%
FRENCH WARNINGS AT 50%
ENGLISH WARNINGS AT 50%
SPANISH WARNINGS AT 50%
FRENCH WARNINGS AT 50%
ENGLISH WARNINGS AT 50%
SPANISH WARNINGS AT 50%
FRENCH WARNINGS AT 50%
IMPORTANT NOTES:
• BEFORE attempting to install, operate or maintain the release device,
you must read and fully understand this manual and follow all safety
instructions.
• DO NOT attempt repair or service of your release device unless you
are an Authorized Service Technician.
GENERAL DESCRIPTION
The LiftMaster
®
LM21XPBB and LM21XPBBVB Release Device is
UL/ULC listed normally energized fail-safe device designed for use on
rolling doors, single-slide and center-parting level and inclined track
doors. All models are normally energized fail-safe releasing devices
incorporating state-of-the-art electronic control circuitry. The release
devices respond to emergency conditions generated from an automatic
initiating device and are used in conjunction with a fusible link system.
The release device can be powered from 120Vac, 24 Vac, or 24Vdc. The
24Vdc cannot be sourced from a fire alarm control panel or UL1481
regulated power supply. The devices can be activated via a smoke
detector or an alarm relay from the panel’s Form C dry contact relay.
The release device features include a 10, 20, 30 or 60 second delay on
alarm, closed door detection capabilities, Form C relay outputs for the
transmission of alarm and trouble signals transmitted to the fire alarm
control panel, an audible trouble sounder, and diagnostic feedback
LEDs. The release device is provided with a battery management
system that can provide 24Vdc power for up to four smoke detectors
and two horn strobes, as well as provide battery backup for the release
device and accessories. As with all releasing device systems, maximum
fire protection is provided when installed in accordance with factory
specifications and used with a fusible link systems.
AGENCY REQUIREMENTS
Installation and testing to factory specifications shall be performed by
factory authorized personnel for proper operation in accordance with
the latest National Fire Protection Association (NFPA), Underwriters
Laboratories (UL), National Electrical Code (NEC), local, state, county,
district and/or other applicable building and fire standards, guidelines,
regulations and codes including, but not limited to, all appendices
and amendments and the requirements of the local authority having
jurisdiction (AHJ).
WARNING: This product can expose you to chemicals including
lead, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
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