Chamberlain 1/2 HP HD420EV User's Manual

Chamberlain Chain Drive Openers User's Manual - 1/2 HP HD420EV.
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The Chamberlain Group, Inc.

845 Larch Avenue

Elmhurst, Illinois 60126-1196

www.chamberlain.com

CONTENTS

Preparation .............................. 1-4

Assembly ................................. 5-9

Installation ............................ 10-19

Install the Door Control ............. 20-21

Install the Protector System® ...... 22-25

Power  .................................. 26-27

Adjustments .......................... 28-30

Operation.................................. 31

Features ................................... 32

Door Control .......................... 33-34

Remote Control ...................... 34-35

To Erase the Memory .................... 35

To Open the Door Manually ............ 36

Maintenance .............................. 37

Troubleshooting ...................... 38-39

Accessories ............................... 40

Warranty .................................. 41

Repair Parts .......................... 42-43

1/2 hp Chain Drive
Garage Door Opener

■  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 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® and Security 2.0™ accessories.

■   Only enable the Timer-to-Close* or MyQ® remote operation feature* when the garage 

door opener is installed on a sectional door. (*Not available on all models)

Serial Number:

Date of Purchase:

 

Model Number: 

Models

•  PD612EV 

•  HD420EV 

FOR RESIDENTIAL USE ONLY 

Write down the following information 
for future reference:

..

0.659668s