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EEXXTTEENNDDEEDD PPEERRFFOORRMMAANNCCEE RREELLEEAASSEE DDEEVVIICCEE
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
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.
Mechanical
Electrical
TABLE OF CONTENTS
WARNING
WARNING
WARNING
WARNING
CAUTION
WARNING
WARNING
2
INTRODUCTION
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Agency Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
INSTALLATION
Important Installation Warnings . . . . . . . . . . . . . . . . . . . . . . . . . .4
Mount the Release Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
WIRING
Wiring Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Connections of Initiating Devices and Accessories . . . . . . . . . .7-8
Optional Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
TESTING
Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
TROUBLESHOOTING
Operational Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
MAINTENANCE
Maintenance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Enclosure Mounted LEDs Status Indicators . . . . . . . . . . . . . . . .12
ACCESSORIES AND REPLACEMENT PARTS
. . . . . . . .13
APPENDIX
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
OPERATOR NOTES
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
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®LM21XP 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 temperature fuse link system.
This device is designated to be used with manual doors, but can
be used on motorized doors incorporating a fusible link assembly
and drop-out mechanism.
The release device must be powered from 24Vdc received from
an approved UL 1481 regulated power supply with battery
backup. 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.
INTRODUCTION
INTRODUCTION
3
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).
SPECIFICATIONS
To prevent possible SERIOUS INJURY or DEATH:
• DO NOT use this device without fuse links installed.
• Test every 90 days to assure proper operation of release
device.
WARNING
WARNING
LOAD RATING: Support and Release 40 lbs. Max.
PHYSICAL DIMENSIONS: 9.7" x 7.5" x 5" (h x w x d)
PREPARATION
It is imperative that the wall or mounting surface provide
adequate support for the release device.
Refer to the door manufacturer’s recommendations for use of this
product with specific door being utilized. Use only hardware
approved or recognized by the appropriate testing and listing
agencies in conjunction with the installation of this product.
Additional items may be required to complete the installation:
• Concrete anchors or fasteners
• Sash chain or 1/16 cable
• Eyebolts-hook
• Fuse links
• Turnbuckles
• Smoke detectors (up to 4 may be installed with this device)
Refer to NFPA 72 and NFPA 80 for instructions concerning proper
placement and detection coverage. End-of-line devices shall be
installed for supervision of electrical power to 4-wire smoke
detector. When using 4-wire smoke detectors with this device,
electrical supervision must be provided by means of a UL/ULC
listed end-of-line relay.
Smoke Detector
Releasing
Unit
Fuse Links
Eyebolt
Turnbuckle
Chain
Chain End
Link
Fire Door
ELECTRICAL SPECIFICATIONS
MECHANICAL SPECIFICATIONS
COMMON ALARM AND
TROUBLE RELAY:
.5A 125Vac, 60Hz
(MAX. CONTACT RATING) 1A 24Vdc Resistive
WEIGHT: Approximately 8 lbs.
VOLTAGE RATING: 24Vdc
STANDBY CURRENT: .100A
ALARM CURRENT: .15A
INITIATING DEVICE: Maximum line impedance 20 ohm;
Maximum current not to exceed
.010A.; Maximum voltage 28Vdc
4
INSTALLATION
Classification:
Releasing device as defined by Underwriters Laboratories.
Installation Requirements:
Intended for “Indoor Dry” locations; all wiring must be performed
in accordance with the most current version of NFPA 72 - National
Fire Alarm Code and the National Electric Code.
MOUNT THE RELEASE DEVICE
Installation procedures vary according to door types. Refer to
door manufacturer’s recommendation that applies to your door.
1. Mount the release device on a vertical surface with chain end
link exiting side of enclosure.
2. Secure the release device enclosure with fasteners (#10 is the
minimum size recommended). If installing in masonry, use
concrete anchors (not provided).
3. Install hardware (sash chain or 1/16 cable, eyebolts-hook, fuse
links, turnbuckles—not provided) according to door
manufacturer’s recommendations. NOTE: The end link direction
of pull must be perpendicular to the side of the release device
enclosure. Install an eyebolt a minimum distance of 12" from
the release device to adequately redirect sash chain pull.
4. Install end link by pressing mechanical reset to allow insertion
of end link. Push end link completely in and release mechanical
reset to latch end link.
5. Remove sash chain or cable slack by adjusting turnbuckle.
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
WARNING
WARNING
WARNING
1. READ AND FOLLOW ALL INSTALLATION WARNINGS
AND INSTRUCTIONS.
2. NEVER connect release device to power source until
instructed to do so.
3. DO NOT install this device on a motorized door without
an electric safety edge.
4. DO NOT use this device without fuse links installed.
5. Concrete anchors MUST be used if mounting release
device into masonry.
6. DO NOT exceed maximum pull rating of 40 lbs. on
releasing device.
Mechanical
Reset Plunger
End Link
Smoke Detector
Releasing
Unit
Eyebolt
Chain End
Link
Fuse Links
Turnbuckle
Chain
Fire Door
5
WIRING
WIRING INSTRUCTIONS
Verify wiring configuration with that recommended by door
manufacturer for use of this product with specific door and
accessories being utilized. 18-gauge wire is recommended.
1. Turn off power supply sources for the release device as well as
the door operator, if applicable, before beginning.
2. Verify voltage rating of release device to power source being
utilized. Voltage is indicated on the side of the unit. Verify that
power is disconnected before proceeding.
3. Connect 24Vdc power to terminal board positions 1 and 2
(Figure 2). Observe proper polarity. 24Vdc power input from an
approved UL 1481 regulated power supply with battery backup.
To reduce the risk of SEVERE INJURY or DEATH:
• ALL electrical connections MUST be made by a qualified
individual.
• Disconnect power at the fuse box BEFORE proceeding. Release
device MUST be properly grounded and connected in
accordance with local electrical codes.
• ALL power wiring should be on a dedicated circuit and well
protected. The location of the power disconnect should be
visible and clearly labeled.
• ALL power and control wiring MUST be run in separate
conduit.
• Installation of ALL wiring and connections, including Class 1
and Class 2 circuits, shall be performed in accordance with,
but not limited to, the latest NFPA, UL and N.E.C. standards
and codes. In addition, ALL installations subject to Canadian
standards shall be performed in accordance with the Canadian
Electrical Code, Part I, with respect to wiring material type,
wiring gauge related to power capacity requirements and
circuit length and wiring methods.
WARNING
WARNING
FIGURE 2
FIGURE 1
To prevent DAMAGE to the circuit board, ALL connections from
terminals 3 through 16 MUST be dry contact type.
WARNING
CAUTION
WARNING
WARNING
Mechanical Reset
Plunger
Option
DIP Switch
+
1
2
–
24Vdc from an Approved UL 1481
Regulated Power Supply
with Battery Backup