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La Marche A46 Series - User Manual

La Marche A46 Series
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This manual is subject to change without notice. You may obtain the newest version of the manual at www.lamarchemfg.com
106 Bradrock Dr. Des Plaines, IL 60018-1967
CPN 40533
Instruction Drawing Number: P25-LA46-2
Tel: 847-299-1188
Fax: 847-299-3061
Revision A10
Rev. Date: 01/23
Installation and Operation Manual
La Marche Manufacturing Company | www.lamarchemfg.com
A46 Series
Constavolt
Magnetic Amplifier Charger
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Summary

Important Safety Instructions

Electrical Safety

Covers precautions for handling hazardous voltages and preventing electrical shock.

Mechanical Safety

Details safety measures related to the charger's physical operation and environment.

Battery Safety

Provides essential safety guidelines when working with or around battery systems.

Model Scope and General Description

Understanding the Model Number

Explains the coding system used to define the A46/A46F charger's features.

Optional Accessories

Information on identifying and obtaining optional accessories for the charger.

Equipment Handling

Storing the A46

Guidelines for proper storage of the A46/A46F charger to maintain its condition.

Moving the A46

Instructions and considerations for safely moving the A46/A46F charger unit.

Installing the A46

Mounting the A46

Details on how to mount the A46/A46F charger, including enclosure specifications.

Wall-Mounting the A46

Procedure and dimensions for securely wall-mounting the A46/A46F charger.

Floor-Mounting the A46

Steps and dimensions for floor-mounting A46/A46F chargers (Enclosures 3, 4 & 7).

Making AC Input Connections

Guidance on connecting the charger to the AC power supply, including wire sizing.

Configuring DC Output Connections

Steps for making DC output connections and selecting appropriate DC wire sizes.

Operation

A46 Startup Procedure

Steps for initiating operation of the A46/A46F charger after installation.

Checking the Installation

Pre-operation checklist to ensure the charger installation is correct and secure.

Charging Modes

Explanation of the Float and Equalize charging modes available on the charger.

Output Voltage Adjustments

Instructions on how to adjust the charger's output voltage for battery requirements.

Frequently Asked Questions

A46 Charger vs. Sealed Batteries

Explains why the A46 charger is not recommended for use with sealed batteries.

Parallel Charger Connection

Guidance on connecting two or more A46(F) chargers in parallel.

Low Current Alarm Explanation

Details on the causes and potential disabling of the low current alarm.

Service and Maintenance

Performing Routine Maintenance

Recommended yearly maintenance checks for the A46/A46F charger.

Troubleshooting Procedure

Step-by-step guide for diagnosing issues with the A46/A46F charger.

Troubleshooting Chart

A table listing common symptoms, possible causes, and recommended actions.

A46(F) Specifications

Electrical Specifications

Details on electrical ratings, input/output, protection, and meters.

Environmental Specifications

Information on operating and storage temperature, humidity, cooling, and vibration.

Fuse Size, Case Size, and Weight

Fuse Size and Ratings

Table of fuse sizes and ratings for various A46(F) models.

Case Size and Weight Information

Data on enclosure sizes and the weight of A46(F) chargers.

Current Draw and Heat Loss

Current Draw and Heat Loss Data

Table detailing AC input current draw and heat loss for A46(F) models.

Power Wiring Guide

Wire Size Calculation

Formulas and tables for determining proper wire size for minimal voltage drop.

Diode Troubleshooting and Replacement

Diode Testing and Replacement

Procedure for testing diodes and guidance on heat sink replacement.

Document Control and Revision History

Revision History

Records of document changes, ECNs, and revision dates.

La Marche A46 Series Specifications

General IconGeneral
Input Frequency50/60 Hz
Output Voltage12/24/48 VDC
Cooling MethodConvection
Float Voltage2.25-2.30 V/cell
Equalize VoltageAdjustable
Battery TypeLead Acid, NiCd
Operating Temperature-20°C to 60°C
Protection FeaturesOvervoltage, Overcurrent, Short Circuit, Overtemperature
Amperage10/15/20/30/40/50 Amps (depending on model)

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