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LiftMaster 8900W LT-Duty Comm 3900 Jackshaft Garage Opener wifi LJ8900W

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The 8900W LJ8900W Liftmaster replaces the 3900 Jackshaft garage door opener

The LJ8900W is LiftMaster's first wall-mounted commercial door operator with built-in Wi-Fi®. Intended for applications using smaller, lighter sectional commercial doors requiring 25 cycles or less per day, the LJ8900W is ideal for dock doors, small warehouses, small businesses, and outbuildings. Wi-Fi® capability with remote access puts YOU in control of daily operations at your facility. MyQ® Technology enables monitoring and control of the facility operators through a mobile app. Built-in Wi-Fi® for simple operator internet connection. Real-time alerts indicate door status via email or push notifications. Open or close the door from anywhere with just a tap of your phone. Enhanced protection features keep your door secure and grant access only to you.

The rugged LJ8900W features a commercial-grade design with steel chassis and rigid plastic cover. Internal chain and sprocket drive mechanism. Auto-force adjustment for the changing weather and environmental conditions. Electronic limits for easy setup. DC Wi-Fi® Logic Board with a built-in surge suppressor. Reliable, heavy-duty 12V DC motor with automatic thermal protection and permanent lubrication. Smooth start/stop reduces wear for lasting performance. A speed of 8.5" per second for the door to move upward and 7.6" per second for the door to move downward. Security+ 2.0® safeguards facility access with rolling code technology, opening for registered devices ONLY. The Protector System® automatically reverses the door if an entrapment protection device detects an obstruction. Battery backup and automatic door lock capable (sold separately). UL listed. 2-year warranty.

MAX. DOOR AREA: 180-ft. total
HEADROOM CLEARANCE REQUIRED: 3-inches from the center of the torsion bar
MAX. DOOR WEIGHT: 850 lbs.

Commercial Door Operator (LJ8900W)
Cable Tension Monitor (041A6104)
Push-Button Control Station (APBS1)
The Protector System® Safety Reversing Sensors


827LM MyQ® Remote Led Light operates automatically with the operator and works with the MyQ® App.
485LM Battery Backup Capable powers up the operator when the power’s out.
841LM Automatic Door Lock deadbolts the door automatically every time it closes.
480LMB Alternate Mounting Kit designed for doors with low headroom (less than 3 in.) or obstructions near the end of the torsion bar.
LC-36A Light Curtain provides 36 inches of increased zone coverage for additional protection; indoor use; requires a separate power source (100maps); max. range: 33 ft.
KPW5 / KPW250 Wireless Keypads NEMA 4X (water protection requirements) sealed electronics for reliable outdoor use.

 LJ8900W Liftmaster installation guide (click)

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