Solar Panel Installation and Maintenance
Manual
Renogy
1. Introduction ..........................................................................................1
2. Statutes and regulations ..................................................................... 1
3. General Information ............................................................................ 2
3.1. SolarPanelIdentication ..........................................................................................................2
3.2. Junctionboxstyleandwiringmethod ..................................................................................3
3.3. GeneralSafety ............................................................................................................................. 5
3.5. OperationSafety .........................................................................................................................6
3.6. FireProtectionandSafety ........................................................................................................ 7
4. Renogy solar panels installation method .......................................... 8
4.1. Installationlocationandenvironment ...................................................................................8
4.2. Selectionofinclinationangle ................................................................................................... 8
5. Renogy solar panels installation - Mechanical installation ...........10
5.1. GeneralRequirements ............................................................................................................. 10
5.2. Mechanicalmountingofsingle-sided&double-sidedcomponents ............................. 10
5.3. Introductionofexiblemoduleinstallationmethod ......................................................... 12
6. Renogy solar panels installation - Electrical installation ..............15
6.1. Electricalparameters ............................................................................................................... 15
6.2. CableandWiring........................................................................................................................ 15
6.3. Connector
................................................................................................................................... 16
6.4. BypassDiode ............................................................................................................................. 16
7. Renogy solar panels installation - Grounding .................................17
8. Renogy solar panels installation - Operation and maintenance ...18
8.1. Solarpanelcleaning ................................................................................................................. 18
8.2. VisualInspectionofPVPanels ............................................................................................... 18
8.3. InspectionoftheConnectorandtheCable ....................................................................... 19
9. Schedule - Renogy solar panel iteration/mix recommendation .. 20
Table of Contents
— 1 —
1. Introduction
Firstofall,thankyouverymuchforchoosingRenogy’ssolarpanels!
WhatshouldyoudowithRenogysolarpanelinstallationandmaintenance?Thisguidehas
coveredeverythingfromsolarpanelinstallationtocleaning.
Thisguidecontainsimportantelectricalandmechanicalinstallationinformationthatyou
shouldrstunderstandbeforeyouinstallthecomponents.Inaddition,themanualcontains
someothersafetyinformationthatyoumustbefamiliarwith.Everythinginthismanualisthe
resultofalongprocessoftechnicalexplorationandexperience
Failuretofollowtherequirementsoutlinedinthismanualmayvoidthelimitedwarranty
providedtothecustomerfortheinstallationofthecomponents.Therecommendationsin
thismanualaredesignedtoimprovethesafetyofthemodulesduringinstallationandhave
beentestedandproven.PleaseprovidethismanualtotheownerofthePVsystemfortheir
referenceandinformthemofallrelevantsafety,operationalandmaintenancerequirements
andrecommendations.
2. Statutes and regulations
ThemechanicalandelectricalinstallationofPVmodulesshouldrefertotheappropriate
regulations,includingelectricalcode,buildingcodeandelectricalconnectionrequirements.
Theseregulationsvarydependingonthelocationoftheinstallation,e.g.,buildingrooftop
installation,vehicle-mountedapplications,etc.Requirementsmayalsovarywiththevoltage
oftheinstallationsystem,thenatureofthecurrent(DCorAC).Pleasecontactyourlocal
authorityforspecicterms.
— 2 —
3. General Information
3.1. SolarPanelIdentication
Nameplate: Type,powerratingunderstandardtestconditions,currentrating,voltagerating,
opencircuitvoltage,shortcircuitcurrent,certicationmark,maximumsystemvoltage
information.
Serial Number: Eachcomponenthasauniqueserialnumber.Thisserialnumberisprinted
onabarcode,placedinthecomponentpriortolamination,andcannotbetornorsmeared
afterlamination.Inaddition,anidenticalserialnumbercanbefoundaboveornexttothe
componentnameplate.
1.Aluminumalloyframe 2.PVGlass 3.EVA 4. Solar Cell
5.Backplate 6.Silicone 7.JunctionBox 8.Nameplate
9.CableWires 10.Connector 11.Mountingholes 12.Groundinghole
13.Leakagehole 14. Bar Code
(Therestoftheversionacorrespondingsolarpanelspecicationsshallprevail)
— 3 —
3.2. Junction box style and wiring method
Junction box location
Recommended connection & wiring method for series
connection
Verticalinstallation:
thestandardline
lengthcanbe(Note:
canincreasethe
extensionline)
Horizontal
installation:
standardlinelength
canbe(Note:
canincreasethe
extensionline)
Verticalinstallation:
thestandardline
lengthcanbe(Note:
canincreasethe
extensionline)
Horizontal
installation:
standardlinelength
canbe(Note:
canincreasethe
extensionline)
Junction box location
Recommended connection & wiring method for series
connection
Verticalinstallation:
thestandardline
lengthcanbe(Note:
canincreasethe
extensionline)
Horizontal
installation:
standardlinelength
canbe(Note:
canincreasethe
extensionline)
— 4 —
Junction box location
Recommended connection & wiring method for parallel
connection
Verticalinstallation:
thestandardline
lengthcanbe(Note:
canincreasethe
extensionline)
Horizontal
installation:
standardlinelength
canbe(Note:
canincreasethe
extensionline)
Verticalinstallation:
thestandardline
lengthcanbe(Note:
canincreasethe
extensionline)
Horizontal
installation:
standardlinelength
canbe(Note:
canincreasethe
extensionline)
Junction box location
Recommended connection & wiring method for parallel
connection
Verticalinstallation:
thestandardline
lengthcanbe(Note:
canincreasethe
extensionline)
Horizontal
installation:
standardlinelength
canbe(Note:
canincreasethe
extensionline)
Attention & Notes
Thistableisforreferenceonly,theactualwiringdependsonthe
situation,trytoreducethelengthoftheline,avoidcross-wiring.
— 5 —
3.3. General Safety
Whenthemodulesareinstalledontheroof,theoverallreratingofthenalstructureneeds
tobeconsidered.Also,theoverallmaintenanceafterwardsneedstobeconsidered.Foryour
safety,donotworkontheroofwithoutsafetyprecautionsincluding,butnotlimitedto,fall
protection,laddersorstairsandpersonalprotectiveequipment.Foryoursafety,donotinstall
orhandlecomponentsinhazardousenvironments,includingbutnotlimitedtostrongwindsor
gusts,wetorsandyroofs.
3.4. Electrical safety
Photovoltaicproductsgeneratedirectcurrentunderlightconditions,sotakeappropriate
protectivemeasures(insulatedgloves,insulatedshoes,etc.)toavoiddirectcontactbetween
personneland30VorhigherDCvoltages.30VorhigherDCvoltagesarepotentiallyfatal.
Componentscanalsogeneratevoltagewhennoloadorexternalcircuitisconnected.Use
insulatedtoolsandwearrubbergloveswhenhandlingthemodulesinthesun.
Photovoltaicmodulesdonothaveswitches.Themodulecanonlybemadetostopworking
bymovingthePVmoduleawayfromthelightorbycoveringitwithcloth,cardboardora
completelyopaquematerial.
Toavoidarcingandelectricshockhazards,donotdisconnectelectricalconnectionswitha
load.Incorrectconnectionscanalsocausearcingandelectricshock.Connectorsmustbe
keptdryandcleantoensuretheyareingoodworkingcondition.Donotinsertothermetal
objectsintotheconnectorsormakeelectricalconnectionsinanyotherway.
Snowandwaterorotherreectionsfromthesurroundingenvironmentcanincreasethe
intensityoftheirradiationreceivedbythemoduleandcancauseanincreaseinoutput
current.Theoutputvoltageofthemodulewillalsoincreaseappropriatelyatlowtemperatures.
— 6 —
Ifthemoduleglassorotherencapsulationmaterialisdamaged,wearpersonalprotective
equipmentandseparatethemodulefromthecircuit.
Touchingwetcomponentsisstrictlyforbiddenunlesswearingshockprotectionequipment
thatmeetstherequirements;whencleaningcomponents,youmustfollowtherequirements
ofthismanualforcleaningcomponents.
Theconnectormustnotcomeintocontactwiththefollowingchemicals:gasoline,white
oweroil,liveoil,moldtemperatureoil,motoroil(e.g.KV46),grease(e.g.MolykoteEM-50L,
etc.),lubricatingoil,rustpreventionoil,stampingoil,grease,dieseloil,cookingoil,acetone,
alcohol,windex,orthobonewater,tenax,moldreleaseagents(e.g.PelicoatS-6,etc.),sticky
boardadhesiveandpottingSealant(suchasKE200,CX-200,chemlok,etc.),TBP(plasticizer),
cleaningagent,etc.
3.5. Operation Safety
z
Toensurethesafetyofthecomponentsduringtransportationand
storage,unpackthecomponentsuponarrivalattheinstallationsite.
z
Protectthepackagingfromdamageordropping.
z
Itisforbiddenunderanycircumstancestolifttheentiremoduleby
graspingthejunctionboxorwires.
z
Donotstandorwalkonthemodule.
z
Donotapplyexcessiveloadsonthemoduleortwistthemoduleinorder
toavoidglassbreakage.
z
Donotdrillholesinthemodulebezel,asthiswillresultinareductionin
thebezel’sresistancetoloadandleadtocorrosionofthebezel,thereby
voidingthewarranty;
z
Donotscratchtheanodicoxidelayeronthesurfaceofthealuminum
bezel,exceptwhengroundingconnectionsaremade.Scratchingmay
leadtoframecorrosion,aectingtheframe’sloadresistanceandlong-
termreliability.
z
Self-repairofcomponentsisstrictlyprohibited
— 7 —
3.6. Fire Protection and Safety
Pleaserefertolocallawsandregulationsbeforeinstallingthecomponentsandcomplywith
themregardingbuildingreresistancerequirements.Ensureadequateventilationbetween
thebacksheetandtheinstallationsurfaceduringinstallation.Thestructureoftheroofand
thewayitisinstalledcanaecttheresafetyperformanceofthebuilding.Ifnotproperly
installed,aremayresult.Toensurethereratingontheroof,theminimumdistancebetween
themoduleframeandtheroofsurfaceis10cm.Whenmountingthemoduleontheroofofa
vehicle,ifbracketsareused,themodulemustbemountedonthebracketsandmustnotbe
tightlybondedtotheroofitself.Usepropermoduleaccessoriessuchasfuses,circuitbreakers,
andgroundconnectorsasrequiredbylocalcodes.Donotusethemoduleifthereareexposed
combustiblegasesinthevicinity.
— 8 —
4. Renogy solar panels installation method
4.1. Installation location and environment
Thecomponentsarenotsuitableforspaceenvironment.
Donotusemirrorsormagnifyingglassestoarticiallyfocussunlightonthemodules.
Donotinstallthemoduleinalocationwherethereisariskofwaterooding.
Itisrecommendedthatthemodulesbeinstalledinanambientoperatingtemperatureof-40°C
to40°C,whichistheaveragemonthlymaximumandminimumtemperatureattheinstallation
site.Themaximumambientoperatingtemperatureofthemoduleis-40°Cto85°C.
Ensurethatthemoduleisnotsubjectedtowindorsnowpressureexceedingthemaximum
allowableloadafterinstallation.
Themoduleneedstobeinstalledinalocationwherethereisnoshadeallyearround.Make
surethattherearenoobstaclesthatmayblockthelightatthemoduleinstallationsite.
Ifthemodulesareinstalledinalocationwherethereisfrequentlightningactivity,themodules
mustbeprotectedfromlightningstrikes.
Donotinstallandusemodulesnearamesorcombustiblematerials.
Modulesmustnotbeinstalledorusedinenvironmentssubjecttoexcessivehail,snow,sand,
soot,airpollution,soot,etc.
Componentsarestrictlyforbiddentobeinstalledontheinstallationsurfacethatissusceptible
toagingandcorrosionbytheenvironment.Forexample:wood,PVCplastic,etc.
4.2. Selection of inclination angle
Moduleinclination:Theanglebetweenthesurfaceofthemoduleandthehorizontalplane.
Whenthemoduleisfacingthesunlight,themodulewillgetthemaximumpoweroutput.
ForinstallationintheNorthernHemisphere,modulesshouldpreferablyfacesouth,andfor
installationintheSouthernHemisphere,modulesshouldpreferablyfacenorth.
Fordetailedinstallationangles,pleasefollowthestandardmoduleinstallationguidelinesor
therecommendationsgivenbyexperiencedPVmoduleinstallers.
Itisrecommendedthatthemountingangleofthemodulesbenotlessthan10degrees(RV
dependingontheactualsituation),sothatthesurfacedustofthemodulescanbeeasily
carriedawaybyrainwaterwhenitrains,thusreducingthenumberofmodulecleaning;atthe
sametime,itisconducivetotheowofwateronthesurfaceofthemodules,avoidingalarge
amountofwaterfromaccumulatingontheglassforalongperiodoftimeandleavingmarks
ontheglass,whichinturnaectstheappearanceandperformanceofthemodules.
Seriallyconnected/parallelconnectedmodulesshouldbeinstalledinthesameorientationand
angle.Iftheorientationorangleisdierent,itmaycausedierentamountofsolarradiation
receivedbyeachmodule,whichmayleadtooutputpowerloss.Toachievemaximumannual
— 9 —
powerproduction,theoptimalorientationandtiltofthePVmodulesintheareawheretheyare
installedshouldbeselectedtoensurethatsunlightcanstillreachthemodulesevenonthe
shortestsunnydayoftheyear.
Ifconnectedtoastand-alonePVsystem,theangleofinstallationofthemodulesshould
bebasedontheseasonandlightconditionstoobtainmaximumpoweroutput.Generally
speaking,iftheoutputofthemodulescanbemetevenonthelowestlightintensityofthe
year,thentheoutputofthemodulesatthechosenanglewillmeettheyear-rounddemand.
— 10 —
5. Renogy solar panels installation - Mechanical installation
5.1. General Requirements
z
PVpanelscanbeinstalledverticallyorhorizontally,andpleasekeepthedrainholesonthe
frameunblocked.
z
PleasekeepthebackboardofthePVpanelsuntouchedwithanyotherstructuresespecially
whenthereareexternalpressureonthem.
z
Pleaseleaveatleast10mmgapbetweenPVpanelsincaseofanypotentialdamagecaused
bythermalexpansionandcontraction.
z
Pleaseassuretheinstallationsite,suchastheroofofthehouseorRV,isproperlysealed
andappropriateforinstallationincaseofunexpectedproblemsandpermeating.
z
Pleaseleavea10cmclearancebetweentheframeofPVpanelsandtherooforthewallto
securetheventilationanddissipationofmoisturewhenthePVpanelsareinstalledonthe
mountingbracketsparalleltothewallortheroof.
z
PleaseensurethePVpanel(s)ismountedrmlyontheroofofthehouseorRV.
5.2. Mechanical mounting of single-sided & double-sided components
Renogycurrentlyoerscomponentsthatcanbeinstalled
mainlybythebolt-onorbracketmountingmethods.
Installationofcomponentsmustbedoneinaccordancewith
theexamplesandrecommendationsbelow.
ContactRenogypriortousingalternativemountingmethods
sinceitmayvoidthewarranty.
5.2.1. Bolt mounting method
Renogycomponentsareequippedwithcorrespondingmountingholes,thenumber&
correspondingsizearedetailedinthecorrespondingcomponentlayout;currently,theonly
mountingmethodprovidedbyourcompanyisboltmounting.Thecorrespondingbolttype/
sizediagramandthematchingmoduleversionareasfollows.
Figure2Schematicdiagramofsingle-sidedcomponentmountingholes
(Theremainingcomponentmountingholesareshowninthecorrespondingcomponent
layout)
— 11 —
SKU
Number per
set
Bolt
size
Pictures
Installation
schematic
Applicable
component
models
MTS-ZB 4 M6
RSP100D-BK
RNG-100D-SS
RNG-30D-SS
RNG-50D-SS
RNG-175D(Two
setsare
recommended)
RSP-200D(Two
setsare
recommended)
MTS-
ACB
4(Eachset
has2parts)
M6
RSP100D-BK
RNG-100D-SS
RNG-30D-SS
RNG-50D-SS
RNG-175D(Two
setsare
recommended)
RSP-200D(Two
setsare
recommended)
Remarks
Pleasechoosethenumberofboltsandinstallationmethodaccordingtothe
installationenvironment,conditionsandactualsituation.
5.2.2. Bolt mounting method with brackets
Renogyalsooersitscustomersanangledmountingbracketthatallowsthecustomer
tofreelyadjusttheangleofthemoduletothelightduringinstallation.Thecorresponding
mountingmethodisalsobolt-on.Themoduleisxedtothebracketbymeansofbolts.
SKU
Number of
matching
solar panels
Bolt
size
Pictures
Installation
schematic
Applicable
component
models
MTS-
TMB
1 Set for 1
panel
M6
RSP100D-BK
RNG-100D-SS
RSP80D-SS
RNG-30D-SS
RNG-50D-SS
MTS-
TM100
1 Set for 1
panel
M8
RSP100D-BK
RNG-100D-SS
RNG-50D-SS
RNG-175D
RSP-200D
RSP450D-120X2
RSP550D-144X2
RNG-320D
Remarks
Pleasechoosethenumberofboltsandinstallationmethodaccordingtothe
installationenvironment,conditionsandactualsituation.
— 12 —
5.2.3. Mounting method of brackets
SKU
Number of
matching
solar panels
Bolt
size
Pictures
Installation
schematic
Applicable
component
models
MTS-
SP100
1 Set for 1
panel
M8
RSP100D-BK
RNG-100D-SS
Remarks
Pleasechoosethenumberofboltsandinstallationmethodaccordingtothe
installationenvironment,conditionsandactualsituation.
5.2.4. Other installation methods
SKU
Number of
matching
solar panels
Bolt
size
Pictures
Installation
schematic
Applicable
component
models
MTS-CB
1 Set for 1
panel
/ / Allsolarpanels
Remarks
ThismountingmethodrequiresnoadditionaldrillingandissuitableforallRenogy
solarpanels.Themoduleneedstobepre-xedwithsiliconeforinstallation.
5.3.Introductionofexiblemoduleinstallationmethod
Forexiblemodules,Renogyrecommendstheuseofsiliconemountingontheroof.Theroof
shouldbecleanedbeforeinstallationtoensurethatthesurfaceisfreeofdirtandforeign
matter,andthebackofthemoduleshouldbecleanedtoensurethatthebackofthemodule
isfreeofdirtandforeignmatter.Thiswillensureastrongadhesionbetweenthebacksheet
andtheroof.Thesiliconemountingmethodiswidelyusedforexiblemodules,whichfully
combinesthemechanicalpropertiesofexiblemodulesandtoacertainextentavoids
mechanicaldamageduringsubsequentuse.
Figure3Schematicdiagramofthestructureofexiblecomponents
(Therestofthecomponentstructurediagramsarebasedonthecorresponding)
— 13 —
5.3.1.Introductiontoatroofmountingmethods
Aftercleaningthesurfacesofthemodules,stickdouble-sidedtapeoneachshortedgeofthe
componentforxing.Applysiliconealongthecomponenthorizontallywithawidthof6~10mm
andathicknessof3~5mm.Siliconelengthapplicationistobeadjustedaccordingtothelength
ofthecomponent,witharecommendedspacingof10mmbetweenlines.Thespacingallows
forheatdissipationandletswaterrundown.Thecomponentneedstobemountedwithin
5minutestopreventthesiliconefromcuringandaectingthebondingperformance.After
mounting,thecomponentneedstobelightlypressedalongthebondingsurfaceinthesame
directionthesiliconewasappliedusingaprofessionalpressingtool.Thedistancebetweenthe
twocomponentsbeing5~10mm.
Long side facing the direction of travel
Short side facing the direction of travel
Operating notes.
z
Whenapplyingsilicone,itisimportanttonotcompletelysealallfoursidesoftheexible
component,asthiscanaectheatdissipationanddrainage.Renogyrecommendsensuring
thatatleasttheshortedgesarenotsealedtoensureproperheatdissipationanddrainage
andtoavoidtheriskofre.
z
Thenumberofhorizontalsiliconeglueapplicationscanbeadjustedaccordingtopersonal
preference.Renogyrecommendsapplyinggluetotheedgeofthedouble-sidedtapewitha
widthof6-10mmandathicknessof3-5mm.
z
Double-sidedadhesivetapeshouldbeushwiththeedgeasmuchaspossible.
— 14 —
z
Aftertheinstallationiscompleted,itshouldbeleftfor72Htoensurethatthesiliconeisfully
cured,avoidingdirectsunlight,rainandotherharshweatherduringthecuringperiod.
z
Themaximumbendoftheexiblemodulecanreach240°,butthisbendisforthe
convenienceofstorage,theactualinstallationisrecommendedtoinstalltheexible
modulehorizontally,ortheinstallationbendislessthan30°toensurepowergeneration
eciency.
z
Whenashortedgeisusedasthebendingedge,thebendinganglemustnotexceed30°.
Sunlight
Components are fully illuminated Flexible Photovoltaic Modules
Fully sunlit area
PV
Components are fully illuminated
PV
Note:Astheinstallationanglebecomesmorecurved,thenon-illuminatedareaofthemodule
willincrease.Whenthebendingradiusexceeds30degrees,thenon-illuminatedareaofthe
modulewillexceed30%,whichwillaecttheoutputofthemodule.
5.3.2.Introductiontonon-atroofmountingmethods
Aftercleaningtheexiblemodules,stickdouble-sidedtapeoneachlongedgeofthe
componentforxing.Applythesiliconeaccordingtothewidthofthecorrugatedroof
protrusion;installthecomponentwithin5minutesafternishingthesiliconeapplicationto
preventthesiliconefromcuringandaectingthebondingperformance.Useaprofessional
pressingtoolandlightlypressthesurfaceofthecomponentalongthedirectionofgluing.The
distancebetweenthetwocomponentsis5~10mm.
Aftertheinstallationofthesiliconepartiscompleted,theexiblecomponentcanbefurther
xedbyapplyingboltsaccordingtothemountingholesthatcomewiththeexiblecomponent
itself.
Silicone position
Figure 3: Non-flat gluing diagram Figure 4: Schematic diagram of
flexible component mounting holes
Note:Renogyrecommendsthatnon-atroofneedtomeetaminimumof6siliconelineson
thebackside,ifthisconditionisnotmet,theexiblemoduleisnotsuitableforthisroof.
— 15 —
6. Renogy solar panels installation - Electrical installation
6.1. Electrical parameters
Thenominalvaluesofelectricalperformanceparametersforcomponents,suchasIsc,Voc,
andPmax,areobtainedunderstandardtestconditions.Thestandardtestconditionsfor
componentsincludeanirradianceof1000W/m2,celltemperatureof25°C,andairmassAM1.5.
Whencomponentsareconnectedinseries,theVocofthecombinationisthesumoftheVoc
valuesofindividualcomponents,andtheIscremainsthesameasthatofasinglecomponent.
Whencomponentsareconnectedinparallel,theVocisthesameasthatofasingle
component,andtheIscisthesumoftheIscvaluesofmultiplecomponents.Refertothegure
below.Itisnotrecommendedtoconnectcomponentswithdierentparameters,models,or
brandsinseriesorinparallel.
Themaximumnumberofcomponentsthatcanbeconnectedinseriesdependsonthe
maximumsystemvoltagesupportedbythecomponent.Afterbeingconnectedinseriesunder
thelowestlocaltemperatureconditions,theopencircuitvoltagecannotexceedthemaximum
systemvoltagevaluespeciedbythecomponent,suchasDC600V/DC1000V/DC1500V.In
practicalapplications,thenumberofcomponentsconnectedinseriesandparallelneedstobe
designedaccordingtotheparametersandmodelsofthecomponentsandcontrollers.
Theopencircuitvoltagecorrectionfactorcanbecalculatedusingthefollowingformula:
CVoc=1-
β
Voc×(25-T).Tistheexpectedminimumambienttemperatureatthesystem
installationlocation,and
β
(%/°C)isthetemperaturecoecientoftheselectedcomponent
Voc(refertothecorrespondingcomponentparametertable).
Iftheremaybereversecurrentpassingthroughthecomponentthatexceedsthemaximum
fusecurrentofthecomponent,thesamespecicationovercurrentprotectiondevicemustbe
usedtoprotectthecomponent.Ifthenumberofcomponentsconnectedinparallelisgreater
thanorequalto2inaseries,theremustbeanovercurrentprotectiondeviceoneachseries
component,asshowninthegureabove.
6.2. Cable and Wiring
6.2.1 Introduction of cables and connections
Renogymodulesuseajunctionboxwithaprotectionratingforconnections(seemodule
specicationfordetails)toprovidesafeprotectionforthewiringanditscorresponding
connectionsandaccessibleprotectionfornon-insulatedliveparts.Thejunctionboxconsists
ofconnectedcablesandconnectorswithcorrespondingprotectionratings,whichfacilitate
theseries/parallelconnectionofmodules.Eachindividualmodulehastwowiresconnectedto
thejunctionbox,onepositiveandonenegative.Theconnectionofthepositiveandnegative
polesofthemodulescanbeachievedthroughtheMC4connectors.
— 16 —
Specialsolarcablesandappropriateconnectorsshouldbeusedinaccordancewithlocal
re,building,andelectricalregulations(thewiresshouldbecoveredbyaging-resistant
conduits,andifexposedtoair,shouldhaveaging-resistantproperties),andtheelectricaland
mechanicalpropertiesofthecablesshouldbeensured.
Afterthecableisinstalledandconnected,itshouldbeprotectedfrommechanicaldamage.Do
notpressthecabletoohard.Althoughthecableisresistanttoagingandwaterproof,itshould
alsobeprotectedfromdirectsunlightandrain.Theminimumbendingradiusofthecable
shouldbe43mm.
6.2.2 Extension cable selection for component-to-component connection
Renogycurrentlyprovidescustomerswithinter-moduleconnectioncablesmainlyintheform
ofSKU:RNG-EXTCB,withawirediameterspecicationof10/12AWG,andamaximumlengthof
40FTforextensioncables.
6.2.3 Extension cable for connecting the component to the controller
Renogycurrentlyprovidescustomerswithconnectioncablesbetweenmodulesand
controllersmainlyintheformofSKU:RNG-AK,withawirediameterspecicationof10/12AWG,
andamaximumlengthof40FTforextensioncables.
6.3. Connector
Pleasekeeptheconnectorsdryandclean,andensurethatthenutoftheconnectorisina
tightenedstatebeforeconnecting.Donotconnecttheconnectorsiftheyarewet,dirty,orin
anyotherunfavorablecondition.Iftheconnectorsarenotconnectedpositivelyandnegatively,
theydonothavewaterprooffunction.Afterinstallingthemodules,theyneedtobeconnected
assoonaspossibleorappropriatemeasuresneedtobetakentoavoidtheinltrationof
watervaporanddust.Avoiddirectsunlightandimmersioninwaterfortheconnectors.Avoid
theconnectorsfallingonthegroundorontheroof,causingparticlesordusttoenterthe
connectorsandaectingsubsequentuse.Incorrectconnectionsmayproducearcsand
electricshocks.Pleaseensurethatallelectricalconnectionsaresecure.Makesurealllocked
connectorsarefullyconnected.Itisnotrecommendedtousedierenttypesofconnectors
together.
6.4. Bypass Diode
Thesolarcellsinthesolarmoduleareconnectedinserieswithabypassdiodeparallel
protection,whichisencapsulatedinthejunctionbox.Whenahotspotphenomenonoccurs
inamodule,thediodewillstartworkingtopreventthemaincurrentfromowingthroughthe
hotspotcell,therebylimitingtheheatingandperformancelossofthemodule.Notethatthe
bypassdiodeisnotanovercurrentprotectiondevice.Ifthediodeissuspectedorconrmedto
befaulty,pleasecontactRenogy.Itisstrictlyprohibitedtoattempttoopenthejunctionboxof
themoduleonyourown.
— 17 —
7. Renogy solar panels installation - Grounding
Thedesignofthemoduleusesanodized,corrosion-resistantaluminumalloyframesasrigid
support.Inordertoensuresafeuseandpreventdamagefromlightningandstaticelectricity,
themoduleframemustbegrounded.Whengrounding,thegroundingdevicemustbeinfull
contactwiththealuminumalloyinterior,penetratingtheoxidelmonthesurfaceofthe
frame.Itisstrictlyforbiddentoaddanyadditionalgroundingholesonthemoduleframe.The
groundingconductororgroundingwirecanbemadeofcopper,copperalloy,oranyother
materialthatmeetstherequirementsofthecorrespondingnationalelectricalspecicationsas
aconductor.Thegroundingconductormustbeconnectedtotheearththroughanappropriate
groundingelectrode.Theholesmarkedwiththegroundingsymbolontheframecanonlybe
usedforgroundingandnotformoduleinstallation.Formoduleswithoutgroundingholes,they
canbegroundedbyconnectingthemtoagroundedelectricaldevice.
— 18 —
8. Renogy solar panels installation - Operation and maintenance
Itisrequiredtoperformregularinspectionandmaintenanceofthemodules,especiallyduring
thewarrantyperiod.PleasecontactRenogyin2weeksifanyabnormalityordamageisfound.
8.1. Solar panel cleaning
Theaccumulationofforeignsubstances(suchasdustandbirddroppings)ontheglass
surfaceofsolarpanelscanaecttheirpoweroutputandevencausehotspotsinthearea.
Theextentoftheimpactdependsonthetransparencyoftheforeignmaterial.Forexample,a
smallamountofdustontheglasssurfacecanaecttheintensityanduniformityofabsorbed
sunlight,thisusuallydoesnotcausedamagetothesolarpanel,andthepoweroutput
usuallydoesnotdecreasesignicantly.However,alargeamountofdustaccumulation,bird
droppings,andshadingbyplantscanformobstructions,whichcansignicantlyreducepower
outputandevenformhotspots.Itisrecommendedthatthesurfaceofthepanelsshouldnot
beobstructedbyanythingwhenthereissunlight.
Thecleaningfrequencydependsonthehowmuchforeignmatteranddebrisaccumulates.
Inmanyinstancesthefrontsubstrategetscleanedwiththerain,andyoucandecreasethe
cleaningfrequency.Itisrecommendedtowipetheglasssurfacewithwetspongeorsoftcloth.
Pleasedonotcleantheglasswithcleaningagentwhichcontainsacidoralkali.
Toavoidpotentialelectricalshockorburn,pleasecleanthePVpanelsintheearlymorningor
atdusk.DonotcleanthePVpanelswithdamagetotheglasssurface,backboardorwires.
8.2. Visual Inspection of PV Panels
InspectthePVpanelsvisuallytondifthereareappearancedefect,especially:
z
Iftheglassisbroken;
z
Corrosionalongthecells’busbar.Thecorrosioniscausedbymoisturethathasinltrated
intothemoduleswhenthesurfaceencapsulationmaterialdamagedduringtheinstallation
ortransportation.
z
Ifthereisevidenceofburningonthepanel.
z
Checktheencapsulationoftheconnectorwiththecable.
z
EnsurethePVpanelsareuntouchedwithsharpobjects.
z
EnsurethePVpanelsarenotshaded.
z
ChecktheconnectionbetweenthePVpanelsandthemountsandbrackets.
— 19 —
8.3. Inspection of the Connector and the Cable
It’srecommendedtoimplementthefollowingpreventivemaintenanceevery6months:
z
ChecktheconnectionsbetweenthePVpanelsandothero-gridcomponents.
z
Checkthesealinggelofthejunctionboxtoensureifitiscrackorcrevice.
— 20 —
9. Schedule - Renogy solar panel iteration/mix recommendation
SKU Versions Size/mm
Mounting
hole number
& size
Recommended
number of
mounting holes
Mixable
versions
RNG-10D-SS G1 341x266 4-10*7 4 /
RNG-30D-SS G1 570x341 4-10*7 4 /
RNG-50D-SS G1 601x498 4-10*7 4 G1/G2/G3
RNG-50D-SS G2 581x509 4-10*7 4 G1/G2/G3
RNG-50D-SS G3 578x503 4-7*11 4 G1/G2/G3
RNG-80D-SS G1 920x498 20-14*9 4 G1/G2
RNG-80D-SS G2 938x509 20-14*9 4 G1/G2
RNG-100D-SS G1 1074x798 20-14*9 4 G1/G2/G3
RNG-100D-SS G2 1076x509 20-14*9 4 G1/G2/G3
RNG-100D-SS G3 1062x530 20-14*9 4 G1/G2/G3
RNG-100MB G1 1038x533 20-14*9 4 /
RSP100D-BK G1 1100x509 20-14*9 4 G1/G2
RSP100D-BK G2 1062x530 20-14*9 4 G1/G2
RNG-175D G2 1262x699 20-14*9 4 G1/G2
RNG-175D G1 1328x670 20-14*9 4 G1/G2
RSP200D G3 1491x699 20-14*9 4 G1/G2/G3
RSP200D G2 1650x670 20-14*9 4 G1/G2/G3
RSP200D G1 1620x657 20-14*9 4 G1/G2/G3
RNG-320D G1 1665x1002 4-14.5*6.5 4 G1/G2
RNG-320D G2 1665x1002 4-14.5*6.5 4 G1/G2
RSP450D-120 G1 1909x1134 8-14*9 4 /
RSP550D-144 G1 2279x1134
8-14*9;
4-11*7
4 /
RNG-10DB-H G1 481x301
6-Inner
φ
8;Outer
φ
14
6 G1/G2
RNG-10DB-H G2 481x301
6-Inner
φ
8;Outer
φ
14
6 G1/G2
RNG-50DB-H G1 673x508
6-Inner
φ
6;Outer
φ
11
4 G1/G2/G3
RNG-50DB-H G2 683x508
6-Inner
φ
6;Outer
φ
11
4 G1/G2/G3
— 21 —
SKU Versions Size/mm
Mounting
hole number
& size
Recommended
number of
mounting holes
Mixable
versions
RNG-50DB-H G3 712x460
6-Inner
φ
6;Outer
φ
11
4 G1/G2/G3
RNG-100DB-H G1 1219x546
6-Inner
φ
6;Outer
φ
12
6 G1/G2/G3
RNG-100DB-H G2 1219x546
6-Inner
φ
6;Outer
φ
12
6 G1/G2/G3
RNG-100DB-H G3 1093x582
6-Inner
φ
6;Outer
φ
11
6 G1/G2/G3
RSP100DL-36 G1 1093x582
6-Inner
φ
6;Outer
φ
11
6 /
RNG-175DB-H G1 1504x673
6-Inner
φ
6;Outer
φ
12
6 G1/G2
RNG-175DB-H G2 1504x673
6-Inner
φ
6;Outer
φ
12
6 G1/G2
RSP200DB-72 G1 1605x748
6-Inner
φ
6;Outer
φ
11
6 /
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