Jackshaft Model 3900
Model 3900 is a light-duty jackshaft operator for light-duty commercial sectional applications only. It features a compact design ideal for limited height, cathedral, or obstructed ceiling installations. It 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: Heavy-duty 24VDC motor provides ultra-quiet operation, along with variable speed smooth start and stop. Compact Design: Ideal for limited height, cathedral, or obstructed celing installations; mounts mounts on the left or right side of door and attaches to the torsion bar. Push Button Station: 1-button station for OPEN & CLOSE functions with type B2 control wiring is standard for all operators. Controls with 1, 2 and 3 buttons are available. The Protector SystemŽ Safety Sensors: A "non-contact" photo safety sensor designed to sense an obstruction and signal the door operator to reverse to open. Warranty: Lifetime motor warranty.