SunPower E Serie Instrucciones De Seguridad E Instalación página 4

Mounting system must provide a flat plane for the modules to be
mounted on and must not cause any twist or stress to be placed on
the Module, even in case of thermal expension.
Modules may be mounted at any angle from horizontal to vertical.
Select the appropriate orientation to maximize sunlight exposure.
SunPower recommends for a good performance of the system
(reduction of soiling effect/water pooling) a minimum of 5 tilt angle.
The cleaning
frequency must be increased for modules installed with a very low
angle.
Commercial modules (96 & 128 cells) frames have permanently
attached stacking pins located a 20mm zone on the long side frame at
388 408 mm (“D” area in Figure 2) . Mounting system hardware used
with commercial modules must account for the presence of these
stacking pins (see Table 2).
Specific information on module dimensions and the location of
mounting and grounding holes is provided in Figures 2 and Table 2.
In order to prevent water from entering the junction box, which could
present a safety hazard, modules should not be mounted such that
the front/top glass faces downward (e.g., on a tracking structure that
positions the module with the junction box facing skyward during
sleep mode).
We also want to remind that the watertightness is not ensured by the
modules but by the mounting system and that drainage should be well
designed for Modules.
Clearance between the module frames and structure or ground is
required to prevent wiring damage and allows air to circulate behind
the module. The recommended assembling clearance between
modules installed on any mounting system is a minimum of 5 mm
distance.
When installed on a roof, the module shall be mounted according to
the local and regional building and fire safety regulations. In case the
module is installed in a roof integrated PV System (BIPV), it shall be
mounted over a watertight and fire resistant underlayment rated for
such application
Modules mounting systems should only be installed on building that
have been formally considered for structural integrity, and confirmed
to be capable of handling the additional weighted load of the Modules
and mounting systems, by a certified building specialist or engineer.
Mounting system supplier shall manage the galvanic corrosion which
can occur between the aluminium frame of the Modules and
mounting system or grounding hardware if such devices is comprised
of dissimilar metals.
The module is only certified for use when its factory frame is fully
intact. Do not remove or alter the module frame. Creating additional
mounting holes or removing the stacking pins may damage the
module and reduce the strength of the frame, therefore are not
allowed. Using mounting Clamps or clips with additional grounding
bolts or grounding metal sheets could be in compliance with this
Safety and Installation Instructions manual subject to conditions of
Section 4.1
Modules may be mounted using the following methods only:
Frame Holes: Secure the module to the structure using the
1)
factory mounting holes. Four M6 (¼”) stainless steel bolts, with
nuts, washers, and lock washers are recommended per module.
Refer to Table 2 for the module dimensions and mounting hole
©April 2020 SunPower Corporation. All rights reserved. Specifications included in this manual are subject to change without notice.
Safety and Installation Instructions Document 001 15497 Rev T
locations. (Please refer to the arrows on the Table 2,
E1&E2&E3&E4).
Pressure Clamps or Clips: Mount the module with the opposite
2)
clips on the longer and/or shorter side of the frame of the
module. The clips allowed location should be according to Table
1.1. Installers should ensure the clamps are of sufficient
strength to allow for the maximum design pressure of the
module. Clips and clamps are not provided by SunPower.
Clamps that secure to the top of the frame must not deform the
top flange. Clamps must apply force collinear with the ‘wall’ of
the module frame and not only to the top flange. Clamps or
installation procedures that put excessive force on the top
flange will deform the
frame, void the module
warranty and risk glass
breakage. Figure 1a
illustrates locations for top
frame clamp force. Avoid
clamping within 50mm of
module corners to reduce
risk of frame corner
deflection and glass breakage. When clamping to the module
frame, torque should never exceed 15 N.m to reduce chances
of frame deformation. Mounting systems should be evaluated
for compatibility before installing specially when the system is
not using Clamps or clips.
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, (See Table 1.2), 2) with two
mounting rails parallel to the long side of the Modules (See
Table 1.2) and 3) without any mounting rail (See Table 1.2). The
end mounting rails and clips or clamps (identified as A
in Table 1.1) 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.
SunPower specified or SunPower supplied mounting systems.
5)
Modules mounted with strict adherence to SunPower
documentation, using hardware systems supplied by or
specified by SunPower
Figure 2 and Table 1.1 below demonstrate the mounting locations and
Tables 1.2 and 1.3 give allowed load ratings (designed test value) for
SunPower modules.
Figure 2: Mounting Zone locations for SunPower modules
For 96 cells, P Series and 104c:
SUNPOWER CORPORATION
Force must not deform
top frame flange or
glass may break Force has
to be
applied in
line with
frame
wall
Figure 1a: Clamp Force Locations
(1&2&3&4)