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Chamberlain Security+ 3112E User Manual

Chamberlain Security+ 3112E
80 pages
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Owner’s Manual
Please read this manual and the enclosed safety materials carefully!
Fasten the manual near the garage door after installation.
Periodic checks of the opener are required to ensure safe operation.
The model number label is located on the front panel of your opener.
®
GARAGE DOOR OPENER
Models 3112E 3122E
For Residential Use Only
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Chamberlain Security+ 3112E Specifications

General IconGeneral
TypeChain Drive
Horsepower1/2 HP
Remote ControlYes
Smart TechnologyNo
Frequency315 MHz
Drive TypeChain Drive
Remote Controls Included1
Battery BackupNo
Max Door Height7 ft
TechnologySecurity+
Motor TypeAC
SecuritySecurity+ rolling code
Keypad CompatibilityYes
Lighting100W incandescent bulb (included)
Operating Voltage120V AC

Summary

Assembly Step 1: Assemble T-Rail

Assembly Step 2: Install the Trolley

Assembly Step 3: Fasten T-Rail to Motor Unit

Model 3122E Only

Attaches the T-rail to the motor unit and installs the chain spreader.

Assembly Step 4: Install Chain/Cable and Sprocket Cover

For Sectional and One-Piece Doors

Installs the chain/cable and attaches the sprocket cover for door openers.

For Sliding and Swinging Gates

Installs the chain/cable and attaches the sprocket cover for gate openers.

Assembly Step 5: Tighten Chain and Cable

Installation

Important Installation Instructions

Crucial safety and installation guidelines before starting the opener setup.

Installation Step 1: Determine Header Bracket Location

Sectional Door and One-Piece Door with Track

Determines header bracket location for sectional and tracked one-piece doors.

One-Piece Door Without Track

Determines header bracket location for one-piece doors without tracks.

Installation Step 2: Install the Header Bracket

Wall and Ceiling Mounting

Guides on mounting the header bracket securely to a wall or ceiling.

Installation Step 3: Attach T-Rail to Header Bracket

Installation Step 4: Position the Opener

Installation Step 5: Hang the Opener

Installation Step 6: Install the Door Control

Installation Step 8: Attach Emergency Release Rope and Handle

Installation Step 9: Electrical Requirements

Wiring and Grounding Safety

Details electrical requirements, safety precautions, and grounding for the opener.

Installation Step 10: Fasten the Door Bracket

Installation Step 11: Connect Door Arm to Trolley

Adjustment Step 1: Adjust UP and DOWN Travel Limits

Setting Door Travel Limits

Sets the open and close limits for the door travel using adjustment screws.

Adjustment Step 2: Adjust the Force

Calibrating Door Force

Calibrates the force required for door operation to ensure safety.

Adjustment Step 3: Test Safety Reversal System

Safety Reversal System Testing

Verifies the safety reversal mechanism functions correctly with an obstruction.

Operation

Important Safety Instructions

Key safety warnings for operating the garage door opener.

Programming

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