Chamberlain door opener User Manual

This Operator Features
the Enhanced
Radio Receiver
Built on Board
O W N E R ’ S M A N U A L
GH
INDUSTRIAL DUTY COMMERCIAL DOOR OPERATOR
ogic
L 3
NOT FOR RESIDENTIAL USE
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PATENT PENDING
The Maintenance Alert System™ allows the
installer to set an internal Maintenance
Cycle Counter. The Logic 3 operator
incorporates a self-diagnostic feature built
into the (MAS) Maintenance Alert System
LED. An LED on the 3-button station will
signal when the set number of cycles/
months is reached or when the operator
requires immediate service.
Serial # Box
Installation Date
2 YEAR WARRANTY
315MHz
Visit www.LiftMaster.com to locate a professional
installing dealer in your area.
INTENDED FOR PROFESSIONAL
INSTALLATION ONLY
A SAFETY DEVICE IS HIGHLY RECOMMENDED

Chamberlain door opener Specifications

General

Brand	Chamberlain
Model	door opener
Category	Garage Door Opener
Language	English

Summary

Operator Specifications

Installation

Mount the Operator

Procedures for securely mounting the operator unit to the wall or bracket.

Manual Operation

Explains how to operate the door manually using the hoist chain during power outages.

Entrapment Protection Accessories (Optional)

Details compatible safety devices like photo eyes and sensing edges for enhanced safety.

Limit Switch Adjustment

Guide for setting the open and close limits for the door's travel.

Adjustment

Adjust Torque Limiter Clutch

Instructions for setting the torque limiter clutch for safe door operation.

Power Wiring & Ground Wiring

Power Wiring Connections

Steps for connecting the main power supply to the operator.

Ground Wiring Connections

Procedures for properly grounding the operator unit for safety.

Control Station Wiring and Installation

Control Wiring Connections

How to connect control wires to the logic board for operation.

Standard Power & Control Connection Diagrams

Logic (Ver. 3.0) 1 Phase Wiring Diagram

Logic (Ver. 3.0) 3 Phase Wiring Diagram

Logic Board

Programming

Determine and Set Wiring Type

Guide to selecting the correct wiring type for operator functionality.

Failsafe Wiring Types

Self-Monitoring Safety Device Options

Maintenance Alert System (MAS)

Open Mid Stop

Timer to Close

Car Dealer Mode

Automatically Learned Programming

Auxiliary Reversal System / RPM Sensor

Maximum Run Timer (MRT)

Optional Programming

Resetting Factory Defaults - Clearing Memory

Steps to restore the operator to its original factory settings.

Maintenance

Maintenance Schedule

Chart outlining periodic maintenance checks and intervals.

How to Order Repair Parts

Troubleshooting

Diagnostic Chart

Table explaining the meaning of logic board LEDs for troubleshooting.

Troubleshooting Guide

Lists common faults, their possible causes, and recommended fixes.

Troubleshooting Error Codes

Explains MAS LED flashes indicating specific operator errors.

Troubleshooting Radio Functionality

Electrical Box Logic (Ver 3.0)

Repair Parts Kits - Model GH

Service Kits

Individual Parts

Control Connection Diagram