VANNER Incorporated Owner’s Manual 71-Series Battery Equalizer Table of Contents Introduction . 3 Specifications . . 4 Theory of Operation ... 6 Installation Instructions .. ... . 7 .
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VANNER Incorporated Introduction Introduction Thank you for purchasing a Vanner VANN-Guard Battery Equalizer. We are confident that you will be very pleased with its performance. The 71 Series is designed and manufactured by skilled professionals using the highest standards in workmanship. With minimum maintenance and care, you can be assured of many years of trouble free service.
VANNER Incorporated Specifications Specifications 71-Series Equalizers Model Number 71-60 71-80 Input Voltage 24v Efficiency (Peak) 71-100 18 to 32 v >96% >96% >96% 32 43 53 Max 24v Input Amps Output Voltage (Input Voltage/2) ±2% Output Amps (12v) 0-60 0-80 Standby Current 0-100 20 milliamps nominal at 28.4V Operating Temp. -40°C to +95°C (-40°F to 203°F) Storage Temp.
VANNER Incorporated Specifications 71-100 Operating Efficiency 98% 97% Efficiency 96% 95% 94% 93% 92% 91% 90% 0 10 20 30 40 50 60 70 80 90 100 Output Amps Chart 1 Output Amps 71-100 Performance above 55°C 110 100 90 80 70 60 50 40 30 20 10 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 Ambient Temperature C° Chart 2 Ruggedized Battery Equalizer 5 OWNER’S MANUAL
VANNER Incorporated Specifications 71 Series Dimensional Specifications 0.31 (7) 5/16-18 x 9/16 STUD TORQUE 120 LB-IN MAX 10.6 (269) 8.0 (203) 5.1 (130) 1.3 (33) 8.0 (203) 3.2 (81) 8.5 (216) Ruggedized Battery Equalizer 3.
VANNER Incorporated Theory of Operation Theory of Operation +24V F2 + 12 V Battery B - +24V Equalizer +12V F1 + 24V Alt - +24 Volt Loads +12 Volt Loads + 12 V Battery A - +12V GND In many 24 volt electrical systems it is desirable to tap into the battery system to obtain power for 12 volt loads. This method, while seemingly simple, causes a charge imbalance resulting in Battery B (see diagram) being overcharged, and possibly boiling, while Battery A discharges.
VANNER Incorporated Installation Instructions Installation Instructions Do not exceed the specified torque of 120 in-lbs. when connecting cables to the terminal posts (+24, GND, +12) during installation of the equalizer. Torque values higher than specified may damage the product, reduce performance, and/or create hazardous conditions. Products damaged by improper torque are not covered by the warranty. Do not connect more than one conductor per terminal post on the equalizer.
VANNER Incorporated Installation Instructions Caution adding 12volt batteries Acceptable +24V Battery A and Battery B Are The Same Size F2 + 12 V Battery B - Unacceptable +24V Battery A and Battery B Are NOT The Same Size F2 + 12 V Battery B - +24V Equalizer +24V Equalizer +12V +12V + 24V Alt - + 12 V Battery A - +12V F1 F1 + 12 V Add'l Battery - GND + 12 V Add'l Battery - + 12 V Add'l Battery - + 24V Alt - + 12 V Battery A1 - +12V GND F1 + 12 V Battery A2 - + 12 V Battery A3 - + 12
VANNER Incorporated Installation Instructions Wire Size and temperature rating Cables connecting the equalizer to the batteries must be sufficiently sized to prevent unwanted voltage drops. To properly maintain battery voltage balance, the voltage drop (loss) must be less than 0.05 VDC between the equalizer +24 volt terminal and the battery +24 volt terminal (Battery B positive terminal); less than 0.
VANNER Incorporated OWNER’S MANUAL Vanner Incorporated 4282 Reynolds Drive Hilliard, Ohio 43026 1-800-AC POWER (1-800-227-6937) Tel: 614-771-2718 Fax: 614-771-4904 www.vanner.com pwrsales@vanner.com Part Number D013444-G July 2016 Printed in U.S.A.