Chamberlain HD420EVP User Manual

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.
■ 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.
Serial Number:
Date of Purchase:
Model Number:
Model HD420EVP
FOR RESIDENTIAL USE ONLY
Write down the following information
for future reference:
.
.

Chamberlain HD420EVP Specifications

General

Brand	Chamberlain
Model	HD420EVP
Category	Garage Door Opener
Language	English

Summary

Preparation: Safety and Door Checks

Safety Symbol and Signal Word Review

Explains safety symbols and signal words used in the manual for warnings and cautions.

Door Inspection Before Installation

Critical Door Safety Warnings

Highlights risks of SERIOUS INJURY or DEATH related to door condition and operation.

Assembly: Rail and Trolley

Assemble Rail and Install Trolley

Guides on assembling the rail sections and installing the trolley.

Assembly: Rail to Motor

Fasten Rail to Motor Unit

Instructions for securely attaching the assembled rail to the motor unit.

Assembly: Idler Pulley

Install Idler Pulley

Details the process of installing the idler pulley onto the rail assembly.

Assembly: Chain Installation

Install the Chain

Step-by-step guide for installing and connecting the chain to the trolley and motor.

Assembly: Chain Tensioning

Tighten the Chain

Instructions on how to properly tension the chain after installation.

Installation: Critical Instructions

Important Installation Safety Warnings

Critical safety warnings and general instructions to follow before starting installation.

Installation: Header Bracket Location

Determine Header Bracket Location

Installation: Header Bracket Mounting

Install Header Bracket

Installation: Rail and Opener Positioning

Attach Rail to Header Bracket

Position Garage Door Opener Unit

Installation: Hanging the Opener

Hang Garage Door Opener Securely

Installation: Fixture Installation

Attach Emergency Release Rope

Guides on correctly attaching the emergency release rope and handle.

Installation: Door Bracket

Install Door Bracket

Installation: Door Bracket (One-Piece)

Install Door Bracket for One-Piece Doors

Installation: Door Arm Connection (Sectional)

Connect Door Arm to Trolley (Sectional Doors)

Installation: Door Arm Connection (One-Piece)

Connect Door Arm to Trolley (One-Piece Doors)

Installation: Door Control

Install Wall-Mounted Door Control

Installation: Wiring and Labels

Wire Door Control to Opener

Installation: Safety Sensors

Install Protector System Safety Sensors

Guides on installing the safety reversing sensors (sending and receiving).

Installation: Safety Sensors Mounting

Install Protector System (Wall/Floor Mount)

Details wall and floor installation options for the safety reversing sensors.

Installation: Safety Sensors Wiring

Wire Safety Reversing Sensors (No Pre-wiring)

Installation: Safety Sensors Wiring (Pre-wired)

Wire Safety Reversing Sensors (Pre-wired)

Installation: Power Connection

Connect Power Supply to Opener

Provides options for connecting power to the garage door opener.

Installation: Sensor Alignment and Verification

Align Safety Reversing Sensors

Guides on properly aligning the safety reversing sensors for correct operation.

Adjustments: Travel Programming

Program Travel Limits

Detailed steps to program the open and close travel limits for the garage door.

Adjustments: Safety System Testing

Test Safety Reversal System

Instructions on how to test the safety reversal system after adjustments.

Test Protector System Sensors

Guides on testing the safety reversing sensors' obstruction detection.

Operation: Key Safety Guidelines

Important Operation Safety Instructions

Comprehensive safety warnings and instructions for operating the garage door opener.

Operation: Manual Door Access

Open Door Manually

Troubleshooting: Diagnostic Codes

Diagnostic Chart

Lists diagnostic codes (flashes), symptoms, and solutions for opener issues.

Troubleshooting: Further Diagnostics

Diagnostic Chart - Continued

Continues the diagnostic chart with additional codes, symptoms, and solutions.