Motor: Continuous-duty, high starting torque motor with instant reverse and overload protection. Available in 1/3, 1/2, 3/4 and 1 HP; single or three phase. Capacitor start on single phase. Removable without affecting limit switch settings.

Drive Reduction: First stage heavy-duty 5L V-belt; second stage #41 chain; output on trolley #48 chain on 1/3 and 1/2 H.P.; #41 chain on 3/4 and 1 H.P.

Emergency Disconnect: Spring-loaded disconnect for emergency manual operation.

Wiring Type: C2, B2 D1 and E2 wiring types are all standard and easily selectable using the Logic Control Board (L). T and TS wiring can be activated with the use of the CPS II option board. Reversing Contactor Units (M) may have C2 wiring standard and B2 available by simply moving a jumper wire. All operators are pre-wired to accept a sensing edge, photoelectric control, radio controls and most allister garage door opener types of access control equipment.

External Radio Control Terminal: External terminals provide quick, convenient connections for radio controls.

Bearings: Ball bearings on output shaft; heavy-duty, oil filled bushings on reductions shafts.

Brakes: Solenoid-actuated brake is standard on 3/4 and 1 HP units to prevent coasting of door. Optional on 1/3 and 1/2 HP units.

Friction Clutch: Adjustable friction clutch helps protect against major damage to door and operator should the door meet and obstruction.

Construction: Garage Door Opener NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powder coat finish, all allister garage door opener reduction sprockets drilled and pinned to shafts.

Pushbutton Station: 3-button station for OPEN/CLOSE/STOP functions is standard for all operators. Other controls available.

Quick-Mount Header Bracket: For fast, swing-up mounting.

Rail Assembly: High strength dual L-rail track with exclusive nylon quiet gliding chain guides on rail spacers for quiet, smooth operation. Includes quick-mount header bracket which provides fast, swing-up installation. Standard allister garage door opener on the MyGarageStuff Logic Control (L):

Standard on the MyGarageStuff® Logic Control (L):

Maintenance Alert System: This important Garage Door Opener  feature provides an accurate method for tracking door use and establishing safe and effective maintenance programs for the door and the operator. The Maintenance Alert System features and internal programmable cycle timer that actually counts each time the door cycles. This system is easily preset by the installer for the particular door and application. Once the preset number is reached, an indicator light on the allister garage door opener 3-button station flashes to signal that it is time for routine door and operator maintenance.

Maximum Run Timer: Protects against damage to the door and Garage Door Opener

Auxiliary Reversal System: If a closing door strikes an obstruction, the system will detect the slip of the clutch and reverse the door to the full open position. This system is not a substitute for a safety sensing device such as a photo cell or a reversing edge.

Delay-on-Reverse Circuit

Programmable Mid-Stop

Control Accessories and Options

Commercial Protector System^TM: (Recommended) an inexpensive "non-contact" photo safety sensor designed to sense and obstruction and signal the door operator to reverse to open.

Sensing Edge: (Recommended) Designed to sense an obstruction and signal door operator to stop or reverse as desired. Either an allister garage door opener electric or pneumatic sensing device can be added to bottom edge of door.

Radio Control: Portable transmitter signals Garage Door Opener to open and/or close door. Treadle: Signals door operator to open and/or close when vehicle depresses treadle.

Key Switch: Designed to restrict operation of door to authorized personnel only. Various types available.

Interlock Switch: Prevents accidental operation of the door by interrupting the control circuit.

Available Plug-In Option Boards for the MyGarageStuff Logic Control (L):

Commercial Protector System^TM II: (Recommended) Features our powerful photo sensors to provide a UL approved self-monitoring allister garage door opener operator for commercial door applications. 4-wire or 2-wire "fail-safe" edges may be used. Board also contains a Timer-to-Close function.

Timer-to-Close Option: Garage Door Opener Part of the CPS II board. It provides the ability to close the door at a programmable time from 5 seconds up to 1 hour. Combined with the CPS II board for the convenience of a timer and the safety necessary to protect an auto closing