VANNER Incorporated Owner’s Manual VANN-Guard 70-Series Power Management System With Internal Electronic Monitor Table of Contents Introduction………………………………………………….………………… 3 Specifications…………………………………………………….………….… 4 Theory of Operation……………...…………………………………………… 5 Typical Applications…………………………...…………….…………..…… 8 Installation Instructions………………………….………...………………….
VANNER Incorporated 70-Series Power Management System Owners Manual 2 OWNER’S MANUAL
VANNER Incorporated Introduction Introduction Thank you for purchasing a Vanner VANN-Guard Power Management System. We are confident that you will be very pleased with its performance because our 70-Series are 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 70-Series Equalizers Model Number 70-60M 70-80M Input Voltage 24v Efficiency (Peak) Max 24v Input Amps 18 to 32 v >97% >97% >97% 32 43 53 Output Voltage Output Amps (12v) 70-100M (Input Voltage/2) ±2% 0-60 Standby Current 0-80 0-100 17 milliamps nominal at 28.4V Electronic Monitor Alarm Low/High, Imbalance, Undervoltage protect override, Vann-Guard fault Operating Temp. -40°C to +75°C (-40°F to 167°F) Storage Temp.
VANNER Incorporated Theory of Operation Theory of Operation +24V F2 + 12 V Battery B - +24V VANN-Guard +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 Typical Applications Monitor functionality All functionality described in this section requires that the Monitor Ignition Input (Terminal B) be high in order to be active. All of the fault outputs have internal pull-ups to the +24v supply of 10K ohm. A. Alarm Low Output This output is pulled to ground if the 24V bus is below 24 volts, indicating an alternator or regulator failure. B.
VANNER Incorporated Typical Applications Undervoltage Protection Override (Jump Start Override) (Terminal F) This is an input, which overrides the low battery undervoltage lockout if the 24V bus is above 19VDC. The intent is to detect an attempted jump start so that the 12V bus can be powered in the event of a totally flat battery, and a 12V load present, with a two wire jump (12V battery does not have a jump connection, only the 24V and ground).
VANNER Incorporated 70-Series Power Management System Typical Applications 8 OWNER’S MANUAL
VANNER Incorporated Typical Applications Typical Applications Vanner VANN-Guard Power Management Systems are used in many types of applications including transit and tour buses, private coaches, heavy trucks and off highway equipment, yachts, and alternative energy systems such as solar powered homes. In addition to VANN-Guards, Vanner manufactures a wide range of complementary products such as DC to DC converters, DC to AC inverters, battery charger/conditioners, and battery isolators.
VANNER Incorporated Typical Applications TOUR/CHARTER COACH +24V F2 + 12 V Battery B - +24V VANN-Guard + +12V - +12V F1 + 24V Alt - +24 Volt Loads + 12 V Battery A - +12 Volt Loads Vanner DC to AC Inverter GND 120VAC Loads MARINE +24V +24V Vanner Battery Isolator or Other Paralleling Switch F6 F5 +24V +24V F2 + 12 V Battery B - F4 + 12 V Battery B - +24V VANN-Guard +12V + 24V Starter - +12 Volt Loads + +12V - +12V F1 + 24V Alt - +24V VANN-Guard + 12 V Battery A - F3 +12V GND +2
VANNER Incorporated Testing and Troubleshooting 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 all the VANN-Guard Models. 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 any Vanner VANN-Guard.
VANNER Incorporated Testing and Troubleshooting Caution adding 12volt batteries Acceptable +24V + 12 V Battery B - Unacceptable +24V Battery A and Battery B Are The Same Size F2 Battery A and Battery B Are NOT The Same Size F2 + 12 V Battery B - +24V VANN-Guard +24V VANN-Guard +12V +12V + 24V Alt - + 12 V Battery A - GND +12V F1 F1 + 12 V Battery C - + 12 V Battery C - + 12 V Battery C - + 24V Alt - +12V + 12 V Battery A - GND F1 + 12 V Battery A - + 12 V Battery A - + 12 V Battery
VANNER Incorporated Testing and Troubleshooting Wire Size and temperature rating Cables connecting the VANN-Guard to the batteries must be sufficiently sized to prevent unwanted voltage drops. These voltage drops (loss) must be less than 0.05 VDC between the VANN-Guard’s +24 volt terminal and the battery +24 volt terminal (Battery B positive terminal), less than 0.
VANNER Incorporated Testing and Troubleshooting Testing and Troubleshooting CAUTION Servicing of electrical systems should only be performed by trained and qualified technical personnel. Equipment Required VoltMeter having 0.01 volt resolution. (Fluke Model 87 Multimeter recommended). Clamp-on amp meter (Fluke Model 36 Clamp-on Meter recommended). Vanner Repair Service Vanner offers a quick turn around factory repair service. Send the unit to the address below with a note instructing us to repair it.
VANNER Incorporated Testing and Troubleshooting VANN-Guard Status Voltage Comparison a. b. c. Battery A is lower than Battery B but within 0.05 volt. OFF Battery A is lower than Battery B by 0.05 to 0.10 volts. Battery A is lower than Battery B by more than 0.10 volts d. Battery A is lower than Battery B by more than 0.10 volts e. Battery A is higher than Battery B Stand-by Mode. The VANN-Guard will not turn ON until Battery A is lower than Battery B by more than 0.05 volts.
VANNER Incorporated Testing and Troubleshooting NOTES 70-Series Power Management System 16 OWNER’S MANUAL
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 e-mail: pwrsales@vanner.com Part Number D911388-B Printed in U.S.A.
