Chamberlain 2255-2 User Manual
Owner’s manual
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
GARAGE DOOR OPENER
Models 2245 1/3 HP
2255 1/2 HP
2255-2 1/2 HP
For Residential Use Only
®
Owner’s Manual
■
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.
®
Table of contents
Document Outline
- English manual
- TABLE OF CONTENTS
- INTRODUCTION
- ASSEMBLY
- INSTALLATION
- INSTALLATION STEP 1 Determine the Header Bracket Location
- INSTALLATION STEP 2 Install the Header Bracket
- INSTALLATION STEP 3 Attach the Rail to the Header Bracket
- INSTALLATION STEP 4 Position the Opener
- INSTALLATION STEP 5 Hang the Opener
- INSTALLATION STEP 6 Install the Door Control
- INSTALLATION STEP 7 Install the Light
- INSTALLATION STEP 8 Attach the Emergency Release Rope and Handle
- INSTALLATION STEP 9 Electrical Requirements
- INSTALLATION STEP 10 Install The Protector System®
- INSTALLATION STEP 11 Fasten the Door Bracket
- INSTALLATION STEP 12 Connect Door Arm to Trolley
- ADJUSTMENT
- OPERATION
- CARE OF YOUR OPENER
- PROGRAMMING
- REPAIR PARTS
- ACCESSORIES
- LIFTMASTER SERVICE IS ON CALL
- HOW TO ORDER REPAIR PARTS
- WARRANTY
- Spanish manual