Model LGO is a light-duty grille jackshaft operator. It features a compact design, a high-starting torque motor, an internal door lock sensor and a floor level disconnect, which is ideal for emergency egress.

Standard Features

Motor: High-torque, industrial, 1/2 HP, 115V, single-phase motor with instant reverse and automatic reset thermal overload.

Door Lock Sensor: The adjustable Door Lock Sensor can detect if the door lock is engaged and will stop the operator eliminating jamming and damage to the door or operator. There is no longer any need for wiring guide-mounted interlocks.

Wormgear System: LiftMaster's reliable Wormgear System is utilized as the primary level of reduction for the LGO. For a long cycle life, gearing is pre-lubed at the factory with high-performance grease.

Floor Level Disconnect: Floor level disconnect provides emergency manual operation.

Wiring Type: B2 or D1 wiring types are available. B2 wiring comes standard and is pre-wired to accept photo eyes. This provides for momentary contact to close with a 3-button control station (included). D1 wiring is easily programmed and is designed to accept the contact optional 2-button control station or 2-position keyed control station for constant contact to open and close.

Internal Radio Control Receiver: Built-in Security+® Radio Control Receiver with Smart Button technology. Transmitters sold separately.

Positive Locking Mechanical Brake System: Efficient self-locking mechanical reduction system that functions as a holding brake.

Control Station: A Normally Open Stop Button (N/O), 5VDC NEC Class 2 station is required. A 3-button control station is included and allows for OPEN/CLOSE/STOP functionality.

Control Circuit: 24V NEC Class 2.

Emergency Egress Device: Attractive faceplate mounts flush on wall and contains pull handle to disconnect operator from grille. Allows the door to be opened manually or by spring tension. Flush handle or extended handle.

Sensing Edge: (Addition of an auxiliary limit switch is required for proper wiring of a sensing edge.) Designed to sense an obstruction and signal door operator to stop or reverse as desired. Either an electric or pneumatic sensing device can be added to bottom edge of door. Allowable in either B2 or D1 wiring. Order part number 90-LGOSE for the LGO Safety Edge Kit.

Radio Control: Universal transmitters are available to signal the operator for OPEN/CLOSE/STOP functionality. 1-, 2-, 3- and 4-button transmitters and keypads are available.

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

• Safety of a non-contact infrared reversing sensor
• Fast and easy-to-install
• Patented electrical interface monitors system status at all times
• LED indicators for quick alignment
• One size fits all (for doors up to 30 ft. wide)
• Requires D1, C2 or B2 wiring type