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Chamberlain LA350 - User Manual

Chamberlain LA350
56 pages
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PLEASE READ THE MANUAL CAREFULLY BEFORE INSTALLATION AND OPERATION
THIS PRODUCT TO BE INSTALLED BY A TRAINED
GATE SYSTEMS TECHNICIAN ONLY.
LA350
SWING GATE OPERATOR
INSTALLATION MANUAL

Table of Contents

Questions and Answers

  • C
    Cesar CarrAug 4, 2025
    What to do if my Chamberlain Gate Opener gate leaf will not open or close completely?
    • L
      lgainesAug 4, 2025
      If the gate leaf won't open or close completely, it might be due to: * The photoelectric sensor being shielded. Check and ensure that the photoelectric sensor is not shielded. * The operating time of the operator not being properly adjusted. Set the operating time.
  • S
    Sherry RamirezAug 11, 2025
    What to do if my Chamberlain LA350 gate leaf will not close automatically?
    • R
      Robert HamiltonAug 11, 2025
      If the gate leaf doesn't close automatically, it could be because: * The auto closing function is set to OFF. Set the auto closing time. * The operator wires are not connected properly. Connect the wires.
  • C
    Cheryl ShannonAug 18, 2025
    How to troubleshoot slow moving speed of Chamberlain LA350 gate leaf?
    • D
      Dustin PriceAug 18, 2025
      If the moving speed of the gate leaf is slow, it could be due to a couple of reasons: * The gate was not installed properly. You can release the operator and move the gate leaf by hand to see if it can move smoothly. * The moving speed of the operator is not adjusted properly. Set the moving speed.
  • J
    jamesarmstrongAug 26, 2025
    Why won't my Chamberlain LA350 Gate Opener remote control work?
    • G
      Gregory JacksonAug 26, 2025
      There are several reasons why the remote control might not be working: * The remote control may not be programmed. If this is the case, you should program the remote. * The remote control battery may need to be replaced. Replace the battery. * The clutch may be disengaged. Engage the clutch with the release key.

Summary

Safety

Important Note

Key instructions before installation, operation, or maintenance.

Swing and Ornamental Grill Gate Safety Precautions

Warnings to prevent serious injury or death from moving gates.

Important Safety Information - Installation Hazards

Reduce risk of severe injury or death from incorrect installation.

Important Safety Information - Sensor Guidelines

Safety guidelines for non-contact and contact sensors.

Introduction

Specifications

Technical details for the LA350 gate operator.

Carton Inventory

List of items included in the gate operator package.

Tools Needed

Visual guide to tools required for installation.

Gate Operator and Control Box Wiring Overview

Diagram showing gate operator and control box connections.

Installation

Determine Post Bracket Position

Steps to position the post bracket for optimal mechanical advantage.

Post Bracket Installation and Dimensions

Attaching the post bracket using hardware and ensuring alignment.

Gate Operator Dimensions

Physical measurements of the LA350 gate operator unit.

Determine Gate Bracket Position

Steps for positioning and securing the gate bracket to the gate.

Gate Bracket Securing and Clutch Release

Securing the operator to the gate bracket and releasing the clutch.

Adjust Travel Distance

Instructions for setting the gate's full open and closed positions.

Clutch Release Procedure

Procedure to release and engage the operator clutch.

Control Box Installation

Guidelines for mounting the control box at the correct height.

Wiring

Connect Operator to Control Box

Wiring the first gate operator to the MOTO1 terminal.

Connect Second Operator to Control Box

Wiring the second gate operator to the MOTO2 terminal.

Voltage Selection and Power Wiring

Setting voltage and connecting incoming AC power.

Main Wiring Diagram

Detailed schematic of the control board and connections.

Optional Battery Backup Connection

Steps for installing an optional battery backup system.

Control Board Wiring Detail

Detailed schematic of the control board and connections.

Travel Limit Settings

Travel Limit Settings Procedure

Procedure for setting the gate's travel limits.

Programming

Program Remote Control

Steps to program remote controls to the operator.

Erase All Remote Control Codes

Procedure to erase all programmed remote control codes.

LiftMaster Internet Gateway Programming

How to program the operator with the LiftMaster Internet Gateway.

Erase LiftMaster Internet Gateway

Procedure to erase LiftMaster Internet Gateway configurations.

Settings

Opening;Closing Delay Time Setting

Setting the delay times for gate opening and closing.

Single Gate Leaf Operation Setting

Configuring for a single or dual gate leaf system.

Operation Mode Setting

Selecting the operational mode for the gate.

Auto Close Time Setting

Configuring the automatic closing time for the gate.

Force Adjustment

Adjusting the driving force of the gate operator.

Soft Start and Stop Speed Setting

Adjusting the speed for gate starting and stopping.

Moving Speed Setting

Adjusting the overall moving speed of the gate.

Operating Time Setting

Setting the maximum operating time for the gate.

Maglock (Optional) Connection

Connecting and function of the optional maglock.

Flashing Light (Optional) Connection

Connecting and function of the optional flashing light.

Photoelectric Sensor Connection

Connecting and function of the optional photoelectric sensor.

Operation and Maintenance

Important Safety Instructions

Essential safety guidelines for operating and maintaining the gate.

Maintenance Schedule and Tasks

Routine maintenance tasks and schedule for the gate operator.

Recycling Guidelines

Guidelines for recycling gate operator components and batteries.

Troubleshooting

Troubleshooting Guide

Common problems, their causes, and solutions for the operator.

Service Kits

Available Service Kits

List of available service kits for the LA350 operator.

Accessories

Optional Accessories

List of optional accessories for the LA350 operator.

Chamberlain LA350 Specifications

General IconGeneral
BrandChamberlain
ModelLA350
CategoryGate Opener
LanguageEnglish

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