1/2 hp Belt Drive
Garage Door Opener
Models
• HD520EVP
• LW3500EV
FOR RESIDENTIAL USE ONLY
■ 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
properly aligned.
■ Periodic checks of the garage door opener are required to ensure safe operation.
■ The model number label is located on the left side panel of your garage
door opener.
■ This garage door opener is compatible with MyQ
■ DO NOT install on a one-piece door if using devices or features providing unattended
close. Unattended devices and features are to be used ONLY with sectional doors.
. .
®
is connected and
®
and Security+ 2.0
®
accessories.
Write down the following information
for future reference:
Serial Number:
Date of Purchase:
CONTENTS
Assembly ................................. 5-9
®
...... 22-25
Power .................................. 26-27
Operation.................................. 31
Features ................................... 32
Warranty .................................. 40
www.chamberlain.com
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196