Merlin Whisper Drive MT3850EVO User Manual

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.
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Merlin Whisper Drive MT3850EVO Specifications

General

Motor Type	DC
Safety Reversing System	Yes
Remote Control Frequency	433.92 MHz
Type	Sectional
Remote Control	Included
Security	Rolling code
Safety Features	Auto-reverse, photoelectric sensors

Summary

Safety Instructions

Preparing Your Garage Door

Tools Needed

Lists essential hand tools for installation and adjustment.

Planning

Carton Inventory

Assembly Step 1: Assemble the Sectional Rail

Assembly Step 2: Install the Belt

Assembly Step 3: Insert the Belt into the Rail

Assembly Step 4: Assemble the Header Sleeve

Assembly Step 5: Attach the Trolley to the Rail Assembly

Assembly Step 6: Attach the Rail to the Opener

Assembly Step 7: Set Belt Tension

Assembly Step 8: Attach the Belt Pulley Cover

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: Fasten the Door Bracket

Installation Step 7: Connect Door Arm to Trolley

Installation Step 8: Install the Lights

Installation Step 9: Attach the Emergency Release Rope and Handle

Installation Step 10: Install the Battery Backup

Adjustment Step 1: Program the Travel Limits and Force Settings

Adjustment Step 2: Test the Safety Reversal System

Installing Your Wireless E128M Wireless Wall Button

Install the Protector System™ (Optional)

Enabling the Protector System

Disabling the Protector System

Timer-to-Close Feature (TTC)

Wireless Programming

To Add or Reprogram a Hand-held Remote Control

Guide for programming Merlin remotes into the opener.

To Erase All Codes From Opener Memory

Instructions to clear all stored remote and keyless entry codes.

Wireless Programming: Keyless Device Programming

Trouble Shooting

Diagnostic Chart

Using Your Garage Door Opener

Specifications

Technical details and operating parameters of the garage door opener.

Care of Your Opener

Maintenance schedule for regular upkeep and longevity of the opener.

Accessories

Replacement Parts - Information for Service Personnel

Chamberlain Limited Warranty