Murphy BCEG-24-20, BCEG-12-10, BCEG-24-10 User Manual

Guardian Battery Charger Series

Installation and Operations Manual

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Section 75

In order to consistently bring you the highest quality, full featured products, we reserve the right to change our
specifications and designs at any time. The latest version of this manual can be found at www.fwmurphy.com.

Warranty - A limited warranty on materials and workmanship is given with this FW Murphy product. A copy of

the warranty may be viewed or printed by going to www.fwmurphy.com/support/warranty.htm

Please read the following information before installing.

BEFORE BEGINNING INSTALLATION OF THIS MURPHY
PRODUCT:

• Disconnect all electrical power to the charger.

• Make sure the charger cannot operate during installation.

• Follow all safety warnings of charger and battery

manufacturers.

• Read and follow the Safety Instructions section of this manual.

• Read and follow all installation instructions.

• Please contact FW MURPHY immediately if you have any

questions.

T able of Conte nt s

Safety Instructions.................................................................................................................. 1

General Safety Instructions..........................................................................................1

Personal Precautions................................................................................................... 2

Prior to Installation / Commissioning............................................................................2

Charger Location and Connection................................................................................3

General Product Information................................................................................................. 4

Installation and Mounting Instructions.................................................................................6

Operating Instructions ...........................................................................................................7

Terminal Connection Information.................................................................................7

Troubleshooting.................................................................................................................... 10

Measuring Charging Voltage and Current..................................................................11

Output Voltage...........................................................................................................11

Using Correct Size Battery Charger...........................................................................12

Factors Contributing to Electrolyte Loss.....................................................................12

Battery Life.................................................................................................................12

Specifications................................................................................................................. .......14

Power Supply.............................................................................................................14

DC Charge Output .....................................................................................................14

Charge Fail Output.....................................................................................................14

General ......................................................................................................................14

NOTES

Safety Instructions

This manual contains important safety and operating instructions for Guardian models BCEG­12-10, BCEG-24-10, and BCEG-24-20.

General Safety Instructions

For safe and correct use of the unit, follow the steps below. Should you have any problems
and the unit does not function as expected, consult the “Troubleshooting Guidelines” section
located at the end of these manual.

• Visually inspect unit for any signs of damage caused by transport or storage. Do
not operate charger if it has been damaged or abused. Return to supplier in this
event.

• Mount charger as outlined in “Charger Location and Connection”, paying
attention to ambient temperature.

• Ensure that AC line voltage is disconnected. Make sure to only connect to the
correct AC supply voltage.

• Ensure unit is properly grounded.

• Check batteries in accordance with manufacturer guidelines.

• Check charger is correct for battery type and voltage.

• Connect unit to batteries, observing correct polarity and ensuring a secure and

tight connection.

• Switch on unit at electrical supply.

• Do not expose charger to rain or snow.

• Use of an attachment not recommended or sold by the battery charger

manufacturer may result in risk of fire, electric shock, or injury to persons.

• Do not disassemble charger. Return to supplier when service or repair is
required. Incorrect reassembly may result in a risk of electric shock or fire.

WARNING – RISK OF EXPLOSIVE GASES
WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS.
BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL
BATTERY OPERATION.

To reduce the risk of battery explosion, fo llow these instruct ions
and those published by battery manufacturers and manufacturer of
any equipment you intend to use in vicinity of the battery. Review
cautionary markings on these products and on any attached
equipment.

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Personal Precautions

• Someone should be within range of your voice or close enough to come to your
aid when you work near a lead-acid battery.

• Have plenty of fresh water and soap nearby in case battery acid contacts skin,
clothing or eyes.

• Wear complete eye protection and clothing protection. Avoid touching eyes while
working near batteries.

• If battery acid contacts skin or clothing, wash immediately with soap and water.
If acid enters eyes, immediately flood eyes with running cold water for at least 10
minutes and get medical attention immediately.

• NEVER smoke or allow a spark or flame in vicinity of battery.

• Be extra cautious to reduce risk of dropping a metal tool onto battery. It may

spark or short-circuit the battery or other electrical part that may cause explosion.

• Remove personal metal items such as rings, bracelets, necklaces, and watches
when working with a lead-acid battery. A lead-acid battery can produce a short­circuit current high enough to weld a ring or the like to metal, causing a severe
burn.

• Use charger only for charging batteries as marked on the charger. Do not use
battery charger for charging dry-cell batteries that are commonly used with home
appliances. These batteries may burst and cause injury to persons and damage
to property.

• NEVER CHARGE A FROZEN BATTERY.

Prior to Installation / Commissioning

• Clean battery terminals. Be sure to keep corrosion from coming in contact with
eyes.

• Add distilled water in each cell until battery acid reaches level specified by
battery manufacturer. This helps purge excessive gas from cells. Do not overfill.
For a battery without cell caps, carefully follow manufacturer’s recharging
instructions.

• Study all battery manufacturer’s specific precautions such as removing or not
removing cell caps while charging and recommended rates of charge.

• Determine voltage of battery by referring to engine manual and ensure matches
charger’s output voltage.

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