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INSTALLATION AND OPERATION MANUAL

Introduction

Designed for use in application requiring balanced charge control from 

two alternators and two regulators on twin engines, the Centerfielder

II: CFII-12/24 makes it possible to utilize the combined output of both 

alternators to supply optimized charging to a single large battery bank.

By monitoring the ignition and field voltages at port and starboard

regulators, the CFII-12/24 determines when both engines are running, 

and directs field current from the master (starboard) regulator to both

alternators. By controlling both alternators with the same field source,

the CFII-12/24 ensures that alternators can work together to ensure 

optimal charging at a single large battery bank.

Safety Considerations

1.

Always disconnect your battery banks and

ensure that switches are “OFF” prior to

installing your regulator.

2.

Remove loose-fitting clothing or jewelry,

which could become entangled in your

motor or other machinery prior to installing

regulator.

3.

Wear ANSI-approved safety eye-wear and

protective gear.

4.

DO NOT attempt to modify the regulator.

Modifications could result in damage to

your charging system, and will void your

warranty.

5.

DO NOT attempt installation if you are tired

or fatigued.

6.

Ensure that the engine has cooled before

initiating installation.

7.

DO NOT attempt regulator installation while

using alcohol or medication that could

impair your judgment or reaction time.

8.

Always use the right tool for the job.

Improper tool use may damage regulator

or your vessel, and could result in personal

injury.

9.

Take time to read the manual. Equipment

damage and possible injuries may result

from an incomplete understanding of the

installation and operation of the MC-612-

DUAL regulator. If you are unfamiliar with

marine electrical systems, consult with a

licensed marine electrician.

Centerfielder II

CFII-12/24

©201

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 Balmar LLC SUP-0200 REV.

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Introduction

1

Regulator Terminal Layout

3-4

Safety Considerations

1

12 Volt Wire Diagram

5

CFII-12/24 Installation

2

24 Volt Wire Diagram

6

Unpacking Box

2

Warranty

7

Locate/Mount Regulator

2

Table of Contents

Summary of Contents for Centerfielder II

Page 1: ...hing or jewelry which could become entangled in your motor or other machinery prior to installing regulator 3 Wear ANSI approved safety eye wear and protective gear 4 DO NOT attempt to modify the regulator Modifications could result in damage to your charging system and will void your warranty 5 DO NOT attempt installation if you are tired or fatigued 6 Ensure that the engine has cooled before ini...

Page 2: ...he Centerfieldr II is easy to install You will find included with the Centerfielder II a collction of wiring terminal connector as well as two fused 12 gauge RED wires required to replace the standard 14 gauge RED power wires in the Max Charge regulator wiring harnesses Use wire size calculation in alternator manual to determine required wire size based on the length of wire run needed to connect ...

Page 3: ...minal is supplied for connection to Terminal 1 The 12 gauge BLUE wire will replace the regulator s 14 gauge field wire 2 PORT ALTERNATOR FIELD OUTPUT TERMINAL Connect Terminal 2 to the port alternator s field input terminal via a user supplied 12 gauge BLUE wire A female 1 4 spade terminal is supplied for connection to Terminal 2 Alternator side termination will vary based on alternator and may re...

Page 4: ...Female 1 4 spade terminals are supplied for connection to Terminal 12 and for connection to the starboard regulator s dash lamp 13 COMMUNICATION PORT Factory use only 14 COMMUNICATION PORT Factory use only 15 COMMUNICATION PORT Factory use only 16 STARBOARD IGNITION INPUT Connect Terminal 16 to the starboard ignition switch or starboard engine oil pressure switch Terminal 16 must see zero volts wh...

Page 5: ... 3 29 18 STBD IGNITION SWITCH PORT IGNITION SWITCH G HOUSE BATTERY BANK PORT ALTERNATOR G STARBOARD ALTERNATOR G CENTERFIELDER POWER POST STARBOARD REGULATOR PORT REGULATOR I F G D P S B DASH LAMP WIRE REGULATOR FIELD WIRE REGULATOR IGNITION WIRE GROUND WIRE REGULATOR POWER WIRE POSITIVE BATTERY CABLE VOLTAGE SENSE WIRE DASH LAMP DASH LAMP I I I I F F F F B B B S S P P D D D D G G G SLAVE MASTER ...

Page 6: ...Centerfielder II Installation 24 Volt System STBD IGNITION SWITCH PORT IGNITION SWITCH G HOUSE BATTERY BANK PORT ALTERNATOR G STARBOARD ALTERNATOR G CENTERFIELDER POWER POST I F G D P ST B DASH LAMP WIRE REGULATOR FIELD WIRE REGULATOR IGNITION WIRE GROUND WIRE REGULATOR POWER WIRE POSITIVE BATTERY CABLE STATOR WIRE DASH LAMP DASH LAMP I I F F B B B P P D D G G G F I F D I D ST ST REV C 3 29 18 ...

Page 7: ...plication maintenance or modification or b any misuse contrary to the instructions provided with the product or c loss or d malfunctions caused by other equipment or e acts of God Examples of conditions not warranted cracked or broken cases parts damaged by fire wate freezing lightning collision theft explosion rust corrosion or items damaged in route to Balmar for repair Balmar s Warranty is void...

Page 8: ...56 772 3829 www cdielectronics com CDI Electronics designs and manufactures ignition components for outboard motors and diagnostic software for most Marine Engines CDI enjoys relationships with 70 distribution partners around the world To Find a CDI distribution partner visit www cdielectronics com Both Balmar and CDI Products are manufactured in our ISO 9001 Certified Factory in Huntsville Alabam...

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