of the modules. To extend the service life of the modules and ensure proper operation of the installation, impor-
tant factors and adjustment parameters must be considered:
2.3.1. Static roofing requirements
The solar installer must ensure that the roof structure can carry the additional weight of the hybrid system.
2.3.2. Angle of inclination
The optimal mounting position of the DualSun solar panels corresponds to an angle of incidence of the sun's
rays of 90 ° relative to the surface of the panels (i.e. perpendicular to the panels). To optimize the output of the
installation, the panels must be installed with the optimal orientation and angle of inclination. These positioning
angles depend on the geographic location of the installation and can be calculated by a qualified solar installer.
Wherever possible, the panels of a group must have the same orientation and the same inclination in order to
avoid any underperformance of the system due to inconsistent productions.
DualSun recommends a minimum tilt angle of 5 ° from the horizontal to reduce the clogging effect.
The cleaning frequency should be increased for modules installed with a very low angle of inclination from the
horizontal.
2.3.3. Wind and snow load
The module has been tested up to a pressure of 5400 Pa negative pressure (snow) and 2400 Pa in positive or
negative pressure (wind) without damage. It thus meets the requirements of standard IEC / EN 61215 for wind
speeds up to 130 km / h.
2.3.4. System location
The overall yield of the photovoltaic system in series is always limited by the module delivering the lowest pow-
er. Different factors can influence the performance of a module (shading, different orientations, fouling ...) and
these impact the entire system.
Therefore, it is necessary to study the layout 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 the modules to the
solar noon, to obtain optimal performance.
DualSun suggests installing the modules in areas where the temperatures are between -20 ° C and + 50 ° C,
which corresponds to the minimum and maximum monthly average temperatures, in accordance with IEC
60364-5-51. The extreme operating temperatures of the modules are between -40 ° C and + 85 ° C.
In regions with heavy snow cover and exposed to strong winds, the modules must be mounted in such a way
as to ensure sufficient nominal resistance and in accordance with local regulations.
Certain operating environments are not recommended for DualSun modules, and are excluded from the Dual-
Sun Limited Warranty:
• No panel should be mounted on a site where it may be exposed to direct contact with :
• salt water
• acid rain
• active chemical vapors or any other aggressive environment
• DualSun modules must not be installed near flammable liquids, gases, hazardous materials or on any type of
vehicle.
• Maximum design altitude of the photovoltaic module ≤ 2000m
Installation, use, maintenance manual DualSun FLASH
6
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