Technical Considerations; Static Requirements On The Roof; Tilt Angle; Wind And Snow Load - DUALSUN M-60-3BBP Serie Manual De Instalación, Uso Y Mantenimiento

2.5 Technical considerations

Throughout the year, the system is exposed to external weather and natural conditions (Sun, wind, rain, hail, snow,
thunderstorms, dead leaves, dust, bird droppings, etc.) that influence the performance and lifespan of the modules.
To extend the life of the modules and to ensure that the installation is functioning properly, important factors and
adjustment parameters are to be considered:

2.5.1 Static requirements on the roof

The Solar Installer must ensure that the roof structure can carry the additional weight of the hybrid system.

2.5.2 Tilt angle

The optimal mounting position of DualSun solar panels results in a 90° incidence angle of sun rays relative to the
surface of the panels (i.e. Perpendicular to the panels). To maximize the productivity of the installation, panels should
be positioned at the optimum orientation and tilt angle. Those angles depend on the geographical location of the
installation and can be calculated by a qualified system designer. All panels in a string should, wherever possible, have
the same orientation and tilt angles to ensure the system does not underperform due to mismatched outputs.

2.5.3 Wind and snow load

The module has been tested up to a pressure of 5400 Pa in negative pressure (snow) and 2400 Pa in
positive pressure or negative (wind) without damage. It meets the requirements of the standard
IEC/EN 61215 for wind speeds up to 130 km/h.

2.5.4 System location

The overall output of the photovoltaic system in series is always limited by the module delivering the lowest power.
Different factors can influence the performance of a module (faults, shading, different orientations) and impact the
entire system.
Therefore, it is necessary to study the implantation to avoid a shading effect on the modules in series.
In addition, all panels must be mounted with the same orientation. It is advisable to align all modules to the South, to
achieve optimum performance.
DualSun suggests installing the modules in areas where temperatures range from-20 °c to + 50 °c, which corresponds
to the minimum and maximum monthly average temperatures, in compliance with IEC 60364-5-51.
operating temperatures of the modules are included between -40 °C and + 85 °C.
In areas with high snow conditions and exposed to strong winds, the assembly of the modules must be carried out in
such a way as to ensure sufficient nominal resistance and in accordance with local regulations.
Installation, operation and maintenance instructions - DualSun XXXM – 60 – 3BBP V1.2 – March 2020
130 km/h
The extreme
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