Maxeon SPR-P5-545-UPP Installation Instructions page 4

The module is only UL Listed for use when its factory frame is fully intact. Do not
remove or alter the module frame, and do not create additional mounting holes
because doing so may compromise the integrity of the frame.
Modules may be mounted using the following methods only:
1)
Frame Holes: Secure the module to the structure using the factory
mounting holes. Four 1/4" stainless steel bolts, with nuts, washers, and lock
washers are recommended per module; tightened to a min. torque of 10 in-
lb. This method has been certified by a third-party organization according to
UL 1703. For frame hole mounting, modules must be secured using the
holes shown in Table 4.
2)
Clamps or Clips: Mount the module with the IFF clips on the longer sides of
the module. Ensure that the clamps are of sufficient strength to allow for
the maximum design pressure of the module. The IFF clip hardware must be
tightened to a torque of 35-45 in-lbs. 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. Do not clamp 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 120 in-lbs to reduce chances of frame deformation. Maximum
allowable torque may be less than 120 in-lbs depending on clamp design.
Mounting systems should be evaluated for compatibility before installing.
3)
End Mount: End mounting is the attachment of the shorter side of the
module frame to a supporting rail using IFF clips tightened to a torque of
35-45 in-lbs. The centerline of the clips must be 50-400mm from the corner
of the module. The end-mounting rail and clips or clamps must be of
sufficient strength to allow for the maximum design pressure of the
module. Verify this capacity before installation.
4)
Maxeon-specified or Maxeon-supplied mounting systems: Mount modules
with strict adherence to Maxeon documentation, using hardware systems
supplied by or specified by Maxeon.
Figure 1: Mounting locations for Maxeon Modules shows where to mount to the
module frame. Table 3 defines mounting options, attachment locations and
resulting load rating achieved for each module configuration.
Figure 1: Mounting locations for Maxeon modules
Configurations 1 and 2 show mounting with rail support, 3 and 4 show mounting
without rail support. In "With Rail Support" the rails becomes conventional or
rails transverse while "Without Rail Support" becomes end mounted in long or
short side. In the case when the glass deflects it would not deflect in the rails for
additional support.
© 2021 Maxeon Solar Technologies, Ltd. All rights reserved. Specifications included in these instructions are subject to change without notice.
Force must not deform
top frame flange or
glass may break
Force can
be applied
in line with
frame wall
Figure 1a: Clamp Force Locations
Safety and Installation Instructions - Document 539821 Rev A
Table 3: Mounting Zone Load Ratings for Performance Modules (Pending
UL Certification)
Applicable Mounting
Products Zone
A
B
D
E
P5 UPP 4
C
(2384 x 1092 x
G
35mm)
Frame
2
Holes
2 Refer to Table 4 for mounting holes details
3 Safety Factor 1.5 included
4 IEC validated
5 Minimum washer size of 24mm in diameter is required.
5.3 Bifacial Gain
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-
MAXEON SOLAR TECHNOLOGIES, LTD.
Distance Wind (up &
from down) /
corner Snow(down)
3
(mm) (units in Pa)
442-542 1600/3600
592-692 1600/3600
967-1017 1160/1160
243-303 800/1600
540-640 1600/3600
492 1600/3600
642 1600/3600
992 1160/1160
Mounting
Method
Clamp
5
Bolt
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