LiftMaster LM21XP LM21XP Manual - Page 3
Warning - installation instructions
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INTRODUCTION 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 To prevent possible SERIOUS INJURY or DEATH: CAUTION • DO NOT use this device without fuse links installed. • Test every 90 days to assure proper operation of release device. SPECIFICATIONS ELECTRICAL SPECIFICATIONS VOLTAGE RATING: STANDBY CURRENT: ALARM CURRENT: INITIATING DEVICE: 24Vdc .100A .15A Maximum line impedance 20 ohm; Maximum current not to exceed .010A.; Maximum voltage 28Vdc COMMON ALARM AND TROUBLE RELAY: .5A 125Vac, 60Hz (MAX. CONTACT RATING) 1A 24Vdc Resistive LOAD RATING: PHYSICAL DIMENSIONS: MECHANICAL SPECIFICATIONS Support and Release 40 lbs. Max. 9.7" x 7.5" x 5" (h x w x d) WEIGHT: Approximately 8 lbs. 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 Eyebolt Fuse Links Turnbuckle Releasing Unit Chain End Link Chain Fire Door 3