WILL RECEIVE NEWER MODEL LJ8900W
LiftMaster 3900 Light Duty Commercial Jackshaft Operator
The LiftMaster 3900 Light Duty Commercial Jackshaft Operator is a compact remote controlled garage door opener that is designed light-duty commercial standard, vertical and high-lift sectional doors. It’s compact design is ideal for limited height cathedral or obstructed ceiling installations. It can be used with live or dead shaft and cannot go beyond 650 pounds. This operator measures 16 1/2″ L x 7″ W x 6 3/4″ D.
115 volt 1 Ɵ.
Control the Open/Stop/Close sequencing needs for your door operation with a single button control (SBC).
Improve durability with the NEMA 1 type electrical box construction with a powdercoat finish.
Mount on the left or right side of the door. No rails to hang, the operator simply mounts on the wall and attaches to the door shaft through chain and sprocket. (3900 can mount directly to shaft)
Enable limit setting for ease of installation and adjustment to ensure accuracy even after a power failure.
Ensure peace of mind with a lifetime motor warranty.
Light Duty Commercial Jackshaft operator 3900 Light-duty jackshaft operator for light-duty Model 3900 is a commercial sectional applications only. Ideal for limited height, cathedral, or obstructed ceiling installations, it features a compact design.
May be used on standard and high-lift (maximum 7 ft. high-lift) sectional doors measuring up to 14 ft. high and up to 18 ft. wide, but not exceeding 180 sq. ft. or 650 lbs.
STANDARD FEATURES Motor: Ultra-quiet operation by heavy-duty 24VDC motor it comes with smooth start and stop function and variable speed option.
Compact Design: It is ideal for limited height, cathedral, or obstructed ceiling installations;
Mount: Both on left or right side of door and attaches to the torsion bar.
Push Button Station: Type B2 control wiring is standard for all operators OPEN & CLOSE functions with same button station. 1, 2 and 3 button controls are available.
The Protector System Safety Sensors: “”Non-contact”” photo safety sensor designed to sense any obstruction and instantly signals the door operator to reverse.
Warranty: Lifetime motor warranty.
HAL –
MONEY WELL SPENT!!!
It was pretty easy to install and operate. It will work only with the torsion springs and no belts or chains are required. I’m wondering why I didn’t buy it before