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The information in this document is subject to change without notice. Every
effort has been made in the preparation of this document to ensure accuracy
of the contents, but all statements, information, and recommendations in this
document do not constitute a warranty of any kind, express or implied. You
can download this document by scanning the QR code.
Only qualified and trained electrical technicians are allowed to operate the device. Operation
personnel should understand the composition and working principles of the grid-tied PV
power system and local regulations.
Carefully read this document prior to installation to get familiar with product information
and safety precautions. Huawei shall not be liable for any consequence caused by violation of
the storage, installation, and operation regulations specified in this document and the solar
inverter user manual.
Use insulated tools when installing the device. For personal safety, wear proper personal
protective equipment (PPE).
If an optimizer does not connect to any other device, connect the OUT+ and OUT– ports of
the optimizer respectively to the IN+ and IN– ports to protect the terminals from water.
It is recommended that the positive and negative cables (PV+/PV–) between the optimizer
and the solar inverter be placed side by side to avoid cable winding.
The input end of the optimizer should be connected to the PV module connection box, and
the output end to the adjacent optimizer or a solar inverter. Do not reversely connect the
input and output cables. Otherwise, the optimizer may be damaged.
The screenshots are for reference only. The actual screens prevail. Local physical layout using
the solar inverter is used as an example. For details about the remote physical layout using
the management system, see the
FusionSolar App Quick Guide
7 7
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