SunPower SPR X Serie Instrucciones De Seguridad E Instalación página 5

be damaged in any way by such clamps. Therefore, the use of
the above mentioned clamps by the Installer is at the Installer's
sole risks.
End Mount: End mounting is the capture mounting of the
3)
length of the module's shorter frames with clamps on each
shorter sides of the frame. Three different configurations are
possible: 1) with two mounting rails under the complete length
of each shorter side of the Modules, with two mounting rails
parallel to the long side of the Modules without any mounting
rail (Appendix). The end-mounting rails and clips or clamps
must be of sufficient strength to allow for maximum designed
test pressure of the module. Verify this capacity with the
mounting system of vendor before installation.
Hybrid Mount: Combination with clamps or clips located on
4)
longer or shorter sides of Modules are also possible, see Table
1.2 for allowed configurations. In any case, four clampings
points are needed.
Maxeon specified or Maxeon supplied mounting systems.
5)
Modules mounted with strict adherence to Maxeon
documentation, using hardware systems supplied by or
specified by Maxeon.
5.3 Ground Mount Applications for Bifacial modules
Various environmental and installation parameters affect bifacial
gain. Albedo is a measure of the amount of light reflected from the
ground surface. A higher albedo factor will increase irradiance on the
backside and result in higher bifacial gain of the module. The surface
conditions, month of the year, time of day, GHI and DNI both influence
the amount of incident rearside irradiance.
Maxeon recommends to check with solar module mounting hardware
supplier in order to determine the Structure Shading factor of your
particular installation. The Structure Shading Factor varies with
racking system design, irradiance, albedo and height of module
installation above ground and has an overall impact on the rear side
irradiance mismatch.
The Rearside mismatch losses are proportional to the albedo, height
of the modules above ground and structure shading factor. The
irradiance non-uniformity on the rearside results in mismatch
generally as the albedo increases and installation height of the
modules are lower to the ground.
5.4 Rooftop Applications for Bifacial modules
Bifacial modules use direct, reflected or diffuse sunlight at the
rearside to generate additional power. Therefore, it is recommended
to use bifacial modules installed on flat roof applications.
In order to maximize the bifacial gain at the rooftop applications the
following parameters listed below should be considered:
•Surface Albedo
•Roof Integrity
•Module Tilt Angle
•Module Elevation
•Structural Backside Shading
The bifacial modules can be mounted both landscape or portrait
orientation as shown in Appendix section.
When installing a bifacial module on a roof, check applicable building
codes and ensure that the roof construction and the structural load
calculations of the building are suitable.
Bifacial gain tends to be most effective with a higher tilt angle.
As the tilt angle and the module elevation from the underlying surface
increases, more reflected light and diffuse light can be captured by the
©June 2023 Maxeon Solar Technologies, Ltd. All rights reserved. Specifications included in this manual are subject to change without notice.
Safety and Installation Instructions - Document 001-15497 Rev.AA
module. The mounting rails shall be designed to limit the rear side
shading as much as possible. Obstacles between modules and the
ground should be avoided as much as possible in order to increase the
bifacial gain.
5.5 Bifacial Electrical Considerations
The overall electrical bifacial gain is determined by the combination of
surface albedo, irradiance, module tilt angle, shading losses from the
rearside, rearside mismatch and module elevation above ground.
Please refer to the Maxeon datasheet for the electrical outputs with
respect to the overall bifacial gain. Please utilise a suitable
performance software package to simulate the overall bifacial gain.
5.6 Handling of Modules during Installation
Do not place modules face forward in direct contact with abrasive
surfaces like roofs, driveways, wooden pallets, railings, stucco walls,
etc...
The module front surface glass is sensitive to oils and abrasive
surfaces, which may lead to scratches and irregular soiling.
During storage, modules need to be protected from rain or any kinds
of liquids. Required storage temperature is between 10°C to 40°C in a
dry environment (humidity between 30 to 80%). Do not store modules
outdoor to avoid moisture and wet conditions.
Modules that feature antireflective coated glass are prone to visible
finger print marks if touched on the front glass surface. Maxeon
recommends handing modules with anti-reflective glass with gloves
(no leather gloves) or limiting touching of the front surface. Any finger
print marks resulting from installation will naturally disappear over
time or can be reduced by following the washing guidelines in Section
6.0 below. Any module coverage (colored plastic tarps or similar)
during installation can lead to permanent front glass discoloration and
is not recommended. The use of vacuum lifting pads can cause
permanent marks on the front glass. Never lift or move the module
using the cables or the junction box under any-circumstances.
Shading incidence need to be avoided during PV system operation.
The system is not supposed to be energized until the mounting
scaffolding, fences or railing have been removed from the roof.
Systems should be disconnected in any cases of maintenance which
can cause shading (e.g. chimney sweeping, any roof maintenance,
antenna/dish installations, etc).
6.0 Maintenance
Maxeon recommends visual inspection on a regular basis of all
modules for safe electrical connections, sound mechanical
connection, and free from corrosion. This visual inspection should be
performed by trained personnel. The standard frequency is once a
year according to environmental conditions, periodic cleaning of
modules is recommended but is not required. Periodic cleaning has
resulted in improved performance levels, especially in regions with
low levels of annual precipitation (less than 46,3cm (18,25 inches)).
Consult your dealer or supplier about recommended cleaning
schedules for your area.
To clean a module, wash with potable, non-heated, water. Normal
water pressure is more than adequate, but pressurized water up to
100 bar (min.50 cm distance) may be used. Maxeon recommends
using a large hosepipe and not to perform cleaning at high outside
temperatures. Fingerprints, stains, or accumulations of dirt on the
front surface may be removed as follows: first rinse off area and let
soak for a short period of time (5 mins). Re-wet and use a soft sponge
or seamless cloth to wipe glass surface in a circular motion.
Fingerprints typically can be removed with a soft cloth or sponge and
water after wetting. Do not use harsh cleaning materials such as
scouring powder, steel wool, scrapers, blades, or other sharp
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