OPTIMUM GS MODULES INSTALLATION MANUAL
Page 14
Aplicaciones Técnicas de la Energía S.L. (ATERSA)
www.atersa.com – atersa@elecnor.com
Madrid (Spain) +34 915 178 452 - Valencia (Spain) +34 961 038 430
7.
Wiring
•
These modules contain factory installed bypass diodes. If these modules are
incorrectly connected to each other, the bypass diodes, cables, or junction box may be
damaged.
•
Modules can be wired in series to increase voltage. Connect wires from positive
terminal of one module to the negative terminal of the next module. All modules
connected in series should be of the same model number and/or type.
•
Use system wiring with suitable cross-sectional areas and connectors
that are approved for use at the maximum short-circuit current of the module.
•
The maximum open circuit voltage of the system must not be greater than the
specified maximum system voltage for the module.
•
When reverse currents can exceed the value of the maximum protective fuse marked
on the back of the module, a properly rated and certified over current device (fuse or
circuit breaker) must be connected in series with each module or string of modules.
•
Match the polarities of cables and terminals when making the connections; failure to
do so may result in damage to the module.
•
Connecting modules in reverse polarity to a high current source, such as a battery, will
destroy the bypass diodes and render the module inoperative. Bypass diodes are not
user replaceable.
•
The junction box is under no circumstances being opened. Opening the junction box
may void the warranty.
•
Modules with a suspected electrical problem should be returned to Atersa for
inspection and possible repair or replacement as per the warranty conditions provided
by Atersa.
•
For field connections, use the minimum No. #12 AWG copper wires insulated for a
minimum of 90°C and Sunlight resistant as well.
•
The minimum and maximum outer cable diameters of the cable are 5 to 7mm
Ensure proper system operation and maintain the warranty, be careful to observe the correct
cable connection polarity when connection the module to a battery or to other module.
Series method
Photovoltaic modules are manufactured to support high voltages. The maximum voltage of
the system is indicated on the label of the module’s characteristics. Therefore, modules can be
connected in series until that voltage is reached
