Chamberlain Series 1200 User Manual

TM
The Chamberlain Group, Inc.
A DUCHOSSOIS ENTERPRISE
845 Larch Avenue
Elmhurst, Illinois 60126
Garage Door Opener
Owner's Manual
Model Series 1200
For Residential Use Only
Model 1256R - 1/2HP
Model 1246R - 1/3HP
Model 1255R - 1/2HP
Model 1245R - 1/3HP
Model 1240R - 1/4HP
Complies with UL 325
Regulations effective
January 1, 1993.
®
■ Please read this manual and the enclosed safety materials carefully!
■ Fasten the manual near the garage door after installation.
■ The door WILL NOT CLOSE unless the Protector System
®
is connected and
properly aligned.
■ Periodic checks of the opener are required to ensure safe operation.
■ The model number label is located on the front panel of your opener.

Chamberlain Series 1200 Specifications

General

Type	Chain Drive
Horsepower	1/2 HP
Smart Technology	No
Battery Backup	No
Voltage	120V
Drive Type	Chain
Security+ Rolling Code Technology	Yes
Max Door Height/Lift Capacity	7 feet

Summary

Safety and Preparation

Safety Alert Symbols

Alerts to potential mechanical and electrical hazards.

Door Balance Test

Procedure to ensure the garage door is balanced and moves freely.

Installation Procedures

Sectional Door Installation Overview

Guides for installing the opener on sectional garage doors.

One-Piece Door Installation Overview

Key Assembly and Installation Steps

Mounting the Opener and Controls

Safety System Installation

Connecting the Door Arm

Adjustment, Operation, and Troubleshooting

Adjusting Travel Limits and Force Controls

Procedures for setting opener travel limits and force settings.

Testing the Safety Systems

How to test the Protector System and safety reverse function.

Operating the Garage Door Opener

Programming Receiver and Remote Controls

Troubleshooting Common Issues

Solutions for common problems encountered with the opener.