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Merlin MT3850EVO User Manual

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MT3850EVO
Sectional Garage Door Opener
INSTALLATION AND OPERATING INSTRUCTIONS
Owner’s Copy: Keep these Instructions for Future Reference.
Please read this manual and the enclosed safety materials carefully!
Periodic checks of the opener are required to ensure safe operation.
®
®
gomerlin.com.au
gomerlin.co.nz
with Security
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Merlin MT3850EVO Specifications

General IconGeneral
Motor TypeDC
Remote ControlYes
Power SourceElectric
Remote Controls Included2
Safety FeaturesAuto-reverse, photoelectric sensors

Summary

Safety Instructions

Important Safety Warnings

Crucial safety precautions and warnings for installation and operation.

Preparation and Planning

Preparing Your Garage Door

Steps to ensure the garage door is ready for opener installation.

Tools Required

List of tools needed for installation.

Assembly Steps

Assemble Rail and Belt

Instructions for assembling rail sections and installing the belt.

Attach Components

Connecting header sleeve, trolley, and rail to opener.

Set Belt Tension & Cover

Adjusting belt tension and attaching the pulley cover.

Installation: Header Bracket

Determine Location

How to find the correct position for the header bracket.

Mounting Procedures

Procedures for wall and ceiling mounting the header bracket.

Installation: Rail and Opener Connection

Attach Rail to Header

Connecting the rail assembly to the header bracket.

Position Opener Unit

How to position the opener for attachment.

Installation: Opener Hanging and Door Bracket

Hang Opener Securely

Instructions for securely hanging the opener unit.

Fasten Door Bracket

Attaching the door bracket to the garage door.

Final Installation Steps

Connect Door Arm to Trolley

Connecting the door arm to the trolley assembly.

Install Lights & Release Rope

Installing lights and attaching the emergency release rope.

Install Battery Backup

Installing the battery backup unit.

Adjustment Procedures

Program Travel Limits & Force

Setting the door's open/close travel limits and force.

Test Safety Reversal System

Testing the door's automatic reversal feature.

Wireless Controls Installation

Install Wall Button

Installing the wireless wall-mounted control unit.

Optional Accessories

Install Protector System

Instructions for installing the optional safety sensor beams.

Timer-to-Close Feature

Information on the automatic closing feature.

Wireless Programming

Program Remotes

Instructions for adding or reprogramming remote controls.

Program Keypad

Instructions for setting and changing the keyless entry PIN.

Troubleshooting and Diagnostics

Common Issues & Solutions

Solutions for common opener problems.

Diagnostic Codes Explained

Explanation of diagnostic codes and their meanings.

Using Your Garage Door Opener

Operation and Activation

How to operate the opener using various devices.

Maintenance Schedule

Schedule for monthly and yearly opener maintenance.

Parts and Accessories

Opener Assembly Parts

List of parts for service personnel.

Replacement Parts

Warranty Information

Limited Warranty Details

Details of the product warranty and exclusions.

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