V2 ECO-LOGIC Manuel D'utilisation page 12

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POSITIONING THE PANEL
Position the panel facing south, with inclination L with respect to
the horizontal axis equal to the latitude of the installation
location.
PLEASE NOTE: If the installation is in the southern
hemisphere, the panel should be facing north.
Considering it is preferable to obtain maximum yield during the
winter (when there are less hours of sunlight), we recommend
the inclination L be increased by several degrees, for better panel
illumination when the sun is lower.
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