Owner`s manual

VANNER Incorporated Introduction
70-Series Power Management System OWNER’S MANUAL
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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.
General Description
The Vanner VANN-Guard Power Management System is an efficient and highly reliable method of
obtaining a 12 volt DC power source from a 24 volt DC electrical system. The VANN-Guard makes the
batteries look like they are in series and parallel at the same time. In addition to providing regulated 12
volt power, the system ensures that battery voltages remain equal which significantly extends battery life.
Ideally suited for vehicle and alternate energy applications, the VANN-Guard is designed to save your
batteries and the money you would spend replacing them. Users of the Vanner VANN-Guard know that it
is the most cost effective and dependable solution for dual voltage systems.
The Internal Electronic Monitor is a device designed to monitor several critical functions in the electrical
system. This unit provides fault signals that can be wired to warning lights, buzzers or other
control/warning devices.
A typical system would include a 24VDC power source, such as an alternator or solar array, two 12 volt
battery banks in series, and the VANN-Guard. The VANN-Guard connects to the 24 volt, 12 volt and
ground terminals of the battery system. When the 12 volt loads require power, the VANN-Guard ensures
that the current is taken equally from both batteries, and that the voltages of the two batteries are kept
equal. This equalization ensures extended battery life and provides a stable 12 volt supply for operating
accessories.
Paralleling VANN-Guard: Models are available which provide 60, 80 and 100 amps of 12 volt DC power.
VANN-Guard may also be operated in parallel to provide more power. For example, two 60 amp units can
be installed to provide 120 amps of 12 volt DC power.
NOTE: The Vanner VANN-Guard Power Management System is an extremely reliable device and, when
installed according to the instructions, will provide reliable operation for an indefinite period of time.
However, if a system abnormality should develop that would cause a VANN-Guard malfunction, damage
to the battery system could result if 12 volt loads are present.