Agency requirements, Specifications, Preparation – LiftMaster LM21XPBB Extended Performance Release Device User Manual

Page 3

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I N T R O D U C T I O N

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 fusible links installed.
• Test every 90 days to assure proper operation of release

device.

ATTENTION

AVERTISSEMENT

AVERTISSEMENT

AVERTISSEMENT

WARNING

WARNING

CAUTION

WARNING

WARNING

PRECAUCIÓN

ADVERTENCIA

ADVERTENCIA

ADVERTENCIA

VOLTAGE RATING:

120Vac, 60Hz; 24Vac, 60Hz; 24Vdc

STANDBY CURRENT

.06A, .3A, .2A

ALARM CURRENT

.06A, .3A, .25A

BATTERY RATING:

12V 4.5AH Sealed Lead Acid
Battery, Maximum charge current
.150Amps

BATTERY STANDBY TIME: LM21XPBB, 72 Hours

LM21XPBBVB, 24 Hours

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

• Fusible 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.

ELECTRICAL SPECIFICATIONS

MECHANICAL SPECIFICATIONS

FUSES:

3A @ 250V, 2AG Slo-Blo Type

INITIATING DEVICE:

Maximum line impedance 20 ohm;
Maximum current not to exceed
.010A.; Maximum voltage 24Vdc

AUXILIARY POWER:

24Vdc @ .5A Maximum

COMMON ALARM AND
TROUBLE RELAYS:

.

5A 125Vac 60Hz

(MAX. CONTACT RATING)

1A 24Vdc Resistive

WEIGHT:

Approximately 18 lbs.

(INCLUDING BATTERIES)

Smoke Detector

Releasing Unit

Turnbuckle

Annunciator

Chain

Fire Door

Chain End
Link

Fusible Links

Eyebolt

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