Instruction Manual
MAXEONSOLARTECHNOLOGIES,LTD.
SafetyandInstallationInstructions‐Document001‐15497Rev.X
©June2022MaxeonSolarTechnologies,Ltd.Allrightsreserved.Specificationsincludedinthismanualaresubjecttochangewithoutnotice.
Wheninstallingabifacialmoduleonaroof,checkapplicablebuilding
codesandensurethattheroofconstructionandthestructuralload
calculationsofthebuildingaresuitable.
Bifacialgaintendstobemosteffectivewithahighertiltangle.
Asthetiltangleandthemoduleelevationfromtheunderlyingsurface
increases,morereflectedlightanddiffuselightcanbecapturedbythe
module.The mounting railsshallbe designedto limit therear side
shading as much as possible. Obstacles between modules and the
groundshouldbeavoidedasmuchaspossibleinordertoincreasethe
bifacialgain.
5.5BifacialElectricalConsiderations
Theoverallelectricalbifacialgainisdeterminedbythecombinationof
surfacealbedo,irradiance,moduletiltangle,shadinglossesfromthe
rearside, rearside mismatch and module elevation above ground.
PleaserefertotheMaxeondatasheetfortheelectricaloutputswith
respect to the overall bifacial gain. Please utilise a suitable
performancesoftwarepackagetosimulatetheoverallbifacialgain.
5.5HandlingofModulesduringInstallation
Do not place modules face forward in direct contactwith abrasive
surfaceslikeroofs,driveways,woodenpallets,railings,stuccowalls,
etc…
The module front surface glass is sensitive to oils and abrasive
surfaces,whichmayleadtoscratchesandirregularsoiling.
Duringstorage,modulesneedtobeprotectedfromrainoranykinds
ofliquids.Requiredstoragetemperatureisbetween10°Cto40°Cina
dryenvironment(humiditybetween30to80%).Donotstoremodules
outdoortoavoidmoistureandwetconditions.
Modulesthatfeatureantireflectivecoatedglassarepronetovisible
finger print marks if touched on the front glass surface. Maxeon
recommendshandingmoduleswithanti‐reflectiveglasswithgloves
(noleathergloves)orlimitingtouchingofthefrontsurface.Anyfinger
print marks resulting from installation will naturally disappear over
timeorcanbereducedbyfollowingthewashingguidelinesinSection
6.0 below. Any module coverage (colored plastic tarps or similar)
duringinstallationcanleadtopermanentfrontglassdiscolorationand
is not recommended. The use of vacuum lifting pads can cause
permanentmarksonthefrontglass.Neverliftormovethemodule
usingthecablesorthejunctionboxunderany‐circumstances.
Shadingincidenceneed to be avoided duringPVsystemoperation.
The system is not supposed to be energized until the mounting
scaffolding,fencesorrailinghavebeenremovedfromtheroof.
Systemsshouldbedisconnectedinanycasesofmaintenancewhich
can cause shading (e.g. chimney sweeping, any roof maintenance,
antenna/dishinstallations,etc).
6.0Maintenance
Maxeon recommends visual inspection on a regular basis of all
modules for safe electrical connections, sound mechanical
connection,andfreefromcorrosion.Thisvisualinspectionshouldbe
performed by trained personnel.The standard frequency is once a
year according to environmental conditions, periodic cleaning of
modulesisrecommendedbutisnotrequired.Periodiccleaninghas
resulted in improved performance levels,especially in regions with
lowlevelsofannualprecipitation(lessthan46,3cm(18,25inches)).
Consult your dealer or supplier about recommended cleaning
schedulesforyourarea.
Tocleanamodule,washwithpotable,non‐heated,water.Normal
waterpressureismorethanadequate,butpressurizedwaterupto
100 bar (min.50 cm distance) may be used. Maxeon recommends
usingalargehosepipeandnottoperformcleaningathighoutside
temperatures. Fingerprints, stains, or accumulations of dirt on the
frontsurfacemayberemovedasfollows:firstrinseoffareaandlet
soakforashortperiodoftime(5mins).Re‐wetanduseasoftsponge
orseamlessclothtowipeglasssurfaceinacircularmotion.
Fingerprintstypicallycanberemovedwithasoftclothorspongeand
water after wetting. Do not use harsh cleaning materials such as
scouring powder, steel wool, scrapers, blades, or other sharp
instruments to clean the glass surface of the module. Use of such
materialsorcleaningwithoutconsultationwillinvalidatetheproduct
warranty.AsdrycleaningisalsoriskyforAnti‐Reflective(AR)coated
module surface, spinning brush is not recommended for module
cleaning.