• Attachaseparateconductorasgroundingwiretothe4mm
diametergroundingholeswithasetofM4bolt,cup
washer,atwasher,lock-toothedwasher,springwasherand
nut.
• Exposedcopperofthegroundingwireshallnotcontactsthe
moduleframeincaseofcorrodingtheframe.
5) Wiring
For the wiring, pay attention to:
• Tominimizetheriskofindirectlightingstrike,avoidforming
closedloopswhendesigningthesystem.Checkthatwiring
iscorrectbeforestartingthegenerator.Ifthemeasuredopen
circuitvoltage(Uoc)[andshort-circuitcurrent[(Isc)different
fromthespecications,theremaybeawiringfault.
• JetionmodulesusetheJ-Box,onthebacksideofthemodule,
isweatherproofandisdesignedtobeusedwithstandard
wiringorconduitconnections.Wiringmethodsshouldbein
accordancetotheNEC(NationalElectricalCode).Bypass
diodesandcableclampsareincludedwitheachmodulewhen
shippedfromthefactory.
• Usemodulesofthesamecongurationsinthesamesystem.
Whenconnectedinseries,allmodulesmusthavethesame
current.Whenconnectedinparallel,themodulesmustallhave
thesamevoltage.Thequantityofmodulesconnectedshould
matchthevoltagespecicationsofthedevicesusedinthe
system.Themodulesmustnotbeconnectedtogetherto
createavoltagewhichishigherthanthepermittedsystem
voltage.WhendesigningtheJetionsystem,pleasealways
takeintoconsiderationthevariationofthevoltageunder
differenttemperatures(pleasechecktherespectivetempera-
turecoefcientsofthemodules,theVocofthemoduleswillbe
risewhenthetemperaturedrops).
• Thenumberofmodulesinseriesandinparallelinasystem.
• Whileconnectingthemodulesinseries,thetotalvoltage
shouldbelessthanthemaximumsystemvoltageUmax[(IEC:[
Umax=1000V;[UL:[Umax=600V).
• Whileconnectingthemodulesinparallel,thetotalcurrent
shouldbelessthanthemaximumsystemcurrent.
6) Maintenance and Cleaning
• DonotchangethePVcomponentsoptionally(diode,junction
box,plugconnectors).
• Givenasufcienttilt(atleast15°C),itisnotgenerallyneces-
sarytocleanthemodules(rainfallwillhaveaself-cleaning
effect).Incaseofheavysoiling(whichwillresultinoutput
reductions),werecommendcleaningthemodulesusing
plentyofwater(fromahose)withmilddetergentandusing
agentlecleaningimplement(asponge).CAUTION[DON’T
USEDETERGENTSCONSISTINGOFABRASIVE,ACETONE
OROTHERCORROSIVEELEMENTS.Donotcleanthe
moduleswithcoldwaterduringthewarmerhoursoftheday
inordertoavoidcreatinganythermalshockthatmaybe
damagethemodule.
Dirtmustneverbescrapedorrubbedawaywhen
dry,asthiswillcausemicro-scratches.Werecommendthat
thesystemisbeinginspectedatregularintervals.
7) Checklists
• Allfasteningsaretightandsecureandfreeofcorrosion.
• Allcableconnectionsaresecure,tight,cleanandfreeof
corrosion.
• Cablesarenotdamagedinanyway.
• Checkingtheearthingresistivelyofmetals.
8) Warning
• Themaximumloadonthemodulemustnotexceed30lb/ft²
(146.5kg/m²).Toavoidexceedingthemaximumload,site-
specicliveloadssuchaswindandsnowshouldtakeinto
account.
• Werecommendthatthemaximumnumberofmodulesin
parallelshouldbenomorethan2.Whenmorethantwo
modulesorstringsareplannedtobeputinparallel,usestring
fuses.Thenumberofmodulesinserieshastobemade
accordingtothemaxsystemvoltageoftheinverterwhichis
beingused.HowevertheVocVoltageofallmodulesinseries
shouldneverexceedmorethan1000V.
• Theplugconnectorhasitsownpolarity.Makesurethatthe
connectionissafeandtight.Ensurethattheyareingood
electricalandmechanicalcondition.
• Theplugconnectorshouldnotreceiveexternalstress.
• Donotattempttodrillholesintheglasssurfaceofthe
modules.
• Donotdrilladditionalmountingholesintheframeofthe
modules.
• DonothoistthemodulethroughtheJ-Boxorcable.
• Neveruseamodulewithbrokenglassortornsubstrate.
Brokenmodulescannotberepairedandcontactwithany
modulesurfaceorframecanleadtoelectricalshock.
• Donotinstallorhandlemoduleswhentheyarewetorduring
theperiodofhighwind.
• Keepchildrenwellawayfromthesystemwhiletransporting
andinstallingmechanicalandelectricalcomponents.
• Donotstrikeorphysicallydamagethemodule.
• Avoidcuttinganddamagingtheframeandthefrontsideor
backsidesurfaceofthemoduleduringhandlingandinstallati-
on.
• Donotstandorsteponthemodule.
• Donotputextraobjectsonthemoduleincaseofglass
broken.
• TheJ-Boxmustbeonthehighersideofthemodulewhenitis
mounted.