Renogy B15AH User manual

Solar Panel Installation and Maintenance

Manual

Renogy

1. Introduction ..........................................................................................1

2. Statutes and regulations ..................................................................... 1

3. General Information ............................................................................ 2

3.1. SolarPanelIdentication ..........................................................................................................2

3.2. Junctionboxstyleandwiringmethod ..................................................................................3

3.3. GeneralSafety ............................................................................................................................. 5

3.5. OperationSafety .........................................................................................................................6

3.6. FireProtectionandSafety ........................................................................................................ 7

4. Renogy solar panels installation method .......................................... 8

4.1. Installationlocationandenvironment ...................................................................................8

4.2. Selectionofinclinationangle ................................................................................................... 8

5. Renogy solar panels installation - Mechanical installation ...........10

5.1. GeneralRequirements ............................................................................................................. 10

5.2. Mechanicalmountingofsingle-sided&double-sidedcomponents ............................. 10

5.3. Introductionofexiblemoduleinstallationmethod ......................................................... 12

6. Renogy solar panels installation - Electrical installation ..............15

6.1. Electricalparameters ............................................................................................................... 15

6.2. CableandWiring........................................................................................................................ 15

6.3. Connector ................................................................................................................................... 16

6.4. BypassDiode ............................................................................................................................. 16

7. Renogy solar panels installation - Grounding .................................17

8. Renogy solar panels installation - Operation and maintenance ...18

8.1. Solarpanelcleaning ................................................................................................................. 18

8.2. VisualInspectionofPVPanels ............................................................................................... 18

8.3. InspectionoftheConnectorandtheCable ....................................................................... 19

9. Schedule - Renogy solar panel iteration/mix recommendation .. 20

Table of Contents

— 1 —

1. Introduction

Firstofall,thankyouverymuchforchoosingRenogy’ssolarpanels!

WhatshouldyoudowithRenogysolarpanelinstallationandmaintenance?Thisguidehas

coveredeverythingfromsolarpanelinstallationtocleaning.

Thisguidecontainsimportantelectricalandmechanicalinstallationinformationthatyou

shouldrstunderstandbeforeyouinstallthecomponents.Inaddition,themanualcontains

someothersafetyinformationthatyoumustbefamiliarwith.Everythinginthismanualisthe

resultofalongprocessoftechnicalexplorationandexperience

Failuretofollowtherequirementsoutlinedinthismanualmayvoidthelimitedwarranty

providedtothecustomerfortheinstallationofthecomponents.Therecommendationsin

thismanualaredesignedtoimprovethesafetyofthemodulesduringinstallationandhave

beentestedandproven.PleaseprovidethismanualtotheownerofthePVsystemfortheir

referenceandinformthemofallrelevantsafety,operationalandmaintenancerequirements

andrecommendations.

2. Statutes and regulations

ThemechanicalandelectricalinstallationofPVmodulesshouldrefertotheappropriate

regulations,includingelectricalcode,buildingcodeandelectricalconnectionrequirements.

Theseregulationsvarydependingonthelocationoftheinstallation,e.g.,buildingrooftop

installation,vehicle-mountedapplications,etc.Requirementsmayalsovarywiththevoltage

oftheinstallationsystem,thenatureofthecurrent(DCorAC).Pleasecontactyourlocal

authorityforspecicterms.

— 2 —

3. General Information

3.1. SolarPanelIdentication

Nameplate: Type,powerratingunderstandardtestconditions,currentrating,voltagerating,

opencircuitvoltage,shortcircuitcurrent,certicationmark,maximumsystemvoltage

information.

Serial Number: Eachcomponenthasauniqueserialnumber.Thisserialnumberisprinted

onabarcode,placedinthecomponentpriortolamination,andcannotbetornorsmeared

afterlamination.Inaddition,anidenticalserialnumbercanbefoundaboveornexttothe

componentnameplate.

1.Aluminumalloyframe 2.PVGlass 3.EVA 4. Solar Cell

5.Backplate 6.Silicone 7.JunctionBox 8.Nameplate

9.CableWires 10.Connector 11.Mountingholes 12.Groundinghole

13.Leakagehole 14. Bar Code

(Therestoftheversionacorrespondingsolarpanelspecicationsshallprevail)

— 3 —

3.2. Junction box style and wiring method

Junction box location Recommended connection & wiring method for series

connection

Verticalinstallation:

thestandardline

lengthcanbe(Note:

canincreasethe

extensionline)

Horizontal

installation:

standardlinelength

canbe(Note:

canincreasethe

extensionline)

Verticalinstallation:

thestandardline

lengthcanbe(Note:

canincreasethe

extensionline)

Horizontal

installation:

standardlinelength

canbe(Note:

canincreasethe

extensionline)

Junction box location Recommended connection & wiring method for series

connection

Verticalinstallation:

thestandardline

lengthcanbe(Note:

canincreasethe

extensionline)

Horizontal

installation:

standardlinelength

canbe(Note:

canincreasethe

extensionline)

— 4 —

Junction box location Recommended connection & wiring method for parallel

connection

Verticalinstallation:

thestandardline

lengthcanbe(Note:

canincreasethe

extensionline)

Horizontal

installation:

standardlinelength

canbe(Note:

canincreasethe

extensionline)

Verticalinstallation:

thestandardline

lengthcanbe(Note:

canincreasethe

extensionline)

Horizontal

installation:

standardlinelength

canbe(Note:

canincreasethe

extensionline)

Junction box location Recommended connection & wiring method for parallel

connection

Verticalinstallation:

thestandardline

lengthcanbe(Note:

canincreasethe

extensionline)

Horizontal

installation:

standardlinelength

canbe(Note:

canincreasethe

extensionline)

Attention & Notes Thistableisforreferenceonly,theactualwiringdependsonthe

situation,trytoreducethelengthoftheline,avoidcross-wiring.

— 5 —

3.3. General Safety

Whenthemodulesareinstalledontheroof,theoverallreratingofthenalstructureneeds

tobeconsidered.Also,theoverallmaintenanceafterwardsneedstobeconsidered.Foryour

safety,donotworkontheroofwithoutsafetyprecautionsincluding,butnotlimitedto,fall

protection,laddersorstairsandpersonalprotectiveequipment.Foryoursafety,donotinstall

orhandlecomponentsinhazardousenvironments,includingbutnotlimitedtostrongwindsor

gusts,wetorsandyroofs.

3.4. Electrical safety

Photovoltaicproductsgeneratedirectcurrentunderlightconditions,sotakeappropriate

protectivemeasures(insulatedgloves,insulatedshoes,etc.)toavoiddirectcontactbetween

personneland30VorhigherDCvoltages.30VorhigherDCvoltagesarepotentiallyfatal.

Componentscanalsogeneratevoltagewhennoloadorexternalcircuitisconnected.Use

insulatedtoolsandwearrubbergloveswhenhandlingthemodulesinthesun.

Photovoltaicmodulesdonothaveswitches.Themodulecanonlybemadetostopworking

bymovingthePVmoduleawayfromthelightorbycoveringitwithcloth,cardboardora

completelyopaquematerial.

Toavoidarcingandelectricshockhazards,donotdisconnectelectricalconnectionswitha

load.Incorrectconnectionscanalsocausearcingandelectricshock.Connectorsmustbe

keptdryandcleantoensuretheyareingoodworkingcondition.Donotinsertothermetal

objectsintotheconnectorsormakeelectricalconnectionsinanyotherway.

Snowandwaterorotherreectionsfromthesurroundingenvironmentcanincreasethe

intensityoftheirradiationreceivedbythemoduleandcancauseanincreaseinoutput

current.Theoutputvoltageofthemodulewillalsoincreaseappropriatelyatlowtemperatures.

— 6 —

Ifthemoduleglassorotherencapsulationmaterialisdamaged,wearpersonalprotective

equipmentandseparatethemodulefromthecircuit.

Touchingwetcomponentsisstrictlyforbiddenunlesswearingshockprotectionequipment

thatmeetstherequirements;whencleaningcomponents,youmustfollowtherequirements

ofthismanualforcleaningcomponents.

Theconnectormustnotcomeintocontactwiththefollowingchemicals:gasoline,white

oweroil,liveoil,moldtemperatureoil,motoroil(e.g.KV46),grease(e.g.MolykoteEM-50L,

etc.),lubricatingoil,rustpreventionoil,stampingoil,grease,dieseloil,cookingoil,acetone,

alcohol,windex,orthobonewater,tenax,moldreleaseagents(e.g.PelicoatS-6,etc.),sticky

boardadhesiveandpottingSealant(suchasKE200,CX-200,chemlok,etc.),TBP(plasticizer),

cleaningagent,etc.

3.5. Operation Safety

zToensurethesafetyofthecomponentsduringtransportationand

storage,unpackthecomponentsuponarrivalattheinstallationsite.

zProtectthepackagingfromdamageordropping.

zItisforbiddenunderanycircumstancestolifttheentiremoduleby

graspingthejunctionboxorwires.

zDonotstandorwalkonthemodule.

zDonotapplyexcessiveloadsonthemoduleortwistthemoduleinorder

toavoidglassbreakage.

zDonotdrillholesinthemodulebezel,asthiswillresultinareductionin

thebezel’sresistancetoloadandleadtocorrosionofthebezel,thereby

voidingthewarranty;

zDonotscratchtheanodicoxidelayeronthesurfaceofthealuminum

bezel,exceptwhengroundingconnectionsaremade.Scratchingmay

leadtoframecorrosion,aectingtheframe’sloadresistanceandlong-

termreliability.

zSelf-repairofcomponentsisstrictlyprohibited

— 7 —

3.6. Fire Protection and Safety

Pleaserefertolocallawsandregulationsbeforeinstallingthecomponentsandcomplywith

themregardingbuildingreresistancerequirements.Ensureadequateventilationbetween

thebacksheetandtheinstallationsurfaceduringinstallation.Thestructureoftheroofand

thewayitisinstalledcanaecttheresafetyperformanceofthebuilding.Ifnotproperly

installed,aremayresult.Toensurethereratingontheroof,theminimumdistancebetween

themoduleframeandtheroofsurfaceis10cm.Whenmountingthemoduleontheroofofa

vehicle,ifbracketsareused,themodulemustbemountedonthebracketsandmustnotbe

tightlybondedtotheroofitself.Usepropermoduleaccessoriessuchasfuses,circuitbreakers,

andgroundconnectorsasrequiredbylocalcodes.Donotusethemoduleifthereareexposed

combustiblegasesinthevicinity.

— 8 —

4. Renogy solar panels installation method

4.1. Installation location and environment

Thecomponentsarenotsuitableforspaceenvironment.

Donotusemirrorsormagnifyingglassestoarticiallyfocussunlightonthemodules.

Donotinstallthemoduleinalocationwherethereisariskofwaterooding.

Itisrecommendedthatthemodulesbeinstalledinanambientoperatingtemperatureof-40°C

to40°C,whichistheaveragemonthlymaximumandminimumtemperatureattheinstallation

site.Themaximumambientoperatingtemperatureofthemoduleis-40°Cto85°C.

Ensurethatthemoduleisnotsubjectedtowindorsnowpressureexceedingthemaximum

allowableloadafterinstallation.

Themoduleneedstobeinstalledinalocationwherethereisnoshadeallyearround.Make

surethattherearenoobstaclesthatmayblockthelightatthemoduleinstallationsite.

Ifthemodulesareinstalledinalocationwherethereisfrequentlightningactivity,themodules

mustbeprotectedfromlightningstrikes.

Donotinstallandusemodulesnearamesorcombustiblematerials.

Modulesmustnotbeinstalledorusedinenvironmentssubjecttoexcessivehail,snow,sand,

soot,airpollution,soot,etc.

Componentsarestrictlyforbiddentobeinstalledontheinstallationsurfacethatissusceptible

toagingandcorrosionbytheenvironment.Forexample:wood,PVCplastic,etc.

4.2. Selection of inclination angle

Moduleinclination:Theanglebetweenthesurfaceofthemoduleandthehorizontalplane.

Whenthemoduleisfacingthesunlight,themodulewillgetthemaximumpoweroutput.

ForinstallationintheNorthernHemisphere,modulesshouldpreferablyfacesouth,andfor

installationintheSouthernHemisphere,modulesshouldpreferablyfacenorth.

Fordetailedinstallationangles,pleasefollowthestandardmoduleinstallationguidelinesor

therecommendationsgivenbyexperiencedPVmoduleinstallers.

Itisrecommendedthatthemountingangleofthemodulesbenotlessthan10degrees(RV

dependingontheactualsituation),sothatthesurfacedustofthemodulescanbeeasily

carriedawaybyrainwaterwhenitrains,thusreducingthenumberofmodulecleaning;atthe

sametime,itisconducivetotheowofwateronthesurfaceofthemodules,avoidingalarge

amountofwaterfromaccumulatingontheglassforalongperiodoftimeandleavingmarks

ontheglass,whichinturnaectstheappearanceandperformanceofthemodules.

Seriallyconnected/parallelconnectedmodulesshouldbeinstalledinthesameorientationand

angle.Iftheorientationorangleisdierent,itmaycausedierentamountofsolarradiation

receivedbyeachmodule,whichmayleadtooutputpowerloss.Toachievemaximumannual

— 9 —

powerproduction,theoptimalorientationandtiltofthePVmodulesintheareawheretheyare

installedshouldbeselectedtoensurethatsunlightcanstillreachthemodulesevenonthe

shortestsunnydayoftheyear.

Ifconnectedtoastand-alonePVsystem,theangleofinstallationofthemodulesshould

bebasedontheseasonandlightconditionstoobtainmaximumpoweroutput.Generally

speaking,iftheoutputofthemodulescanbemetevenonthelowestlightintensityofthe

year,thentheoutputofthemodulesatthechosenanglewillmeettheyear-rounddemand.

— 10 —

5. Renogy solar panels installation - Mechanical installation

5.1. General Requirements

zPVpanelscanbeinstalledverticallyorhorizontally,andpleasekeepthedrainholesonthe

frameunblocked.

zPleasekeepthebackboardofthePVpanelsuntouchedwithanyotherstructuresespecially

whenthereareexternalpressureonthem.

zPleaseleaveatleast10mmgapbetweenPVpanelsincaseofanypotentialdamagecaused

bythermalexpansionandcontraction.

zPleaseassuretheinstallationsite,suchastheroofofthehouseorRV,isproperlysealed

andappropriateforinstallationincaseofunexpectedproblemsandpermeating.

zPleaseleavea10cmclearancebetweentheframeofPVpanelsandtherooforthewallto

securetheventilationanddissipationofmoisturewhenthePVpanelsareinstalledonthe

mountingbracketsparalleltothewallortheroof.

zPleaseensurethePVpanel(s)ismountedrmlyontheroofofthehouseorRV.

5.2. Mechanical mounting of single-sided & double-sided components

Renogycurrentlyoerscomponentsthatcanbeinstalled

mainlybythebolt-onorbracketmountingmethods.

Installationofcomponentsmustbedoneinaccordancewith

theexamplesandrecommendationsbelow.

ContactRenogypriortousingalternativemountingmethods

sinceitmayvoidthewarranty.

5.2.1. Bolt mounting method

Renogycomponentsareequippedwithcorrespondingmountingholes,thenumber&

correspondingsizearedetailedinthecorrespondingcomponentlayout;currently,theonly

mountingmethodprovidedbyourcompanyisboltmounting.Thecorrespondingbolttype/

sizediagramandthematchingmoduleversionareasfollows.

Figure2Schematicdiagramofsingle-sidedcomponentmountingholes

(Theremainingcomponentmountingholesareshowninthecorrespondingcomponent

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

setsare

recommended)

RSP-200D(Two

setsare

recommended)

MTS-

ACB

4(Eachset

has2parts) M6

RSP100D-BK

RNG-100D-SS

RNG-30D-SS

RNG-50D-SS

RNG-175D(Two

setsare

recommended)

RSP-200D(Two

setsare

recommended)

Remarks Pleasechoosethenumberofboltsandinstallationmethodaccordingtothe

installationenvironment,conditionsandactualsituation.

5.2.2. Bolt mounting method with brackets

Renogyalsooersitscustomersanangledmountingbracketthatallowsthecustomer

tofreelyadjusttheangleofthemoduletothelightduringinstallation.Thecorresponding

mountingmethodisalsobolt-on.Themoduleisxedtothebracketbymeansofbolts.

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 Pleasechoosethenumberofboltsandinstallationmethodaccordingtothe

installationenvironment,conditionsandactualsituation.

— 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 Pleasechoosethenumberofboltsandinstallationmethodaccordingtothe

installationenvironment,conditionsandactualsituation.

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 / / Allsolarpanels

Remarks ThismountingmethodrequiresnoadditionaldrillingandissuitableforallRenogy

solarpanels.Themoduleneedstobepre-xedwithsiliconeforinstallation.

5.3.Introductionofexiblemoduleinstallationmethod

Forexiblemodules,Renogyrecommendstheuseofsiliconemountingontheroof.Theroof

shouldbecleanedbeforeinstallationtoensurethatthesurfaceisfreeofdirtandforeign

matter,andthebackofthemoduleshouldbecleanedtoensurethatthebackofthemodule

isfreeofdirtandforeignmatter.Thiswillensureastrongadhesionbetweenthebacksheet

andtheroof.Thesiliconemountingmethodiswidelyusedforexiblemodules,whichfully

combinesthemechanicalpropertiesofexiblemodulesandtoacertainextentavoids

mechanicaldamageduringsubsequentuse.

Figure3Schematicdiagramofthestructureofexiblecomponents

(Therestofthecomponentstructurediagramsarebasedonthecorresponding)

— 13 —

5.3.1.Introductiontoatroofmountingmethods

Aftercleaningthesurfacesofthemodules,stickdouble-sidedtapeoneachshortedgeofthe

componentforxing.Applysiliconealongthecomponenthorizontallywithawidthof6~10mm

andathicknessof3~5mm.Siliconelengthapplicationistobeadjustedaccordingtothelength

ofthecomponent,witharecommendedspacingof10mmbetweenlines.Thespacingallows

forheatdissipationandletswaterrundown.Thecomponentneedstobemountedwithin

5minutestopreventthesiliconefromcuringandaectingthebondingperformance.After

mounting,thecomponentneedstobelightlypressedalongthebondingsurfaceinthesame

directionthesiliconewasappliedusingaprofessionalpressingtool.Thedistancebetweenthe

twocomponentsbeing5~10mm.

Long side facing the direction of travel

Short side facing the direction of travel

Operating notes.

zWhenapplyingsilicone,itisimportanttonotcompletelysealallfoursidesoftheexible

component,asthiscanaectheatdissipationanddrainage.Renogyrecommendsensuring

thatatleasttheshortedgesarenotsealedtoensureproperheatdissipationanddrainage

andtoavoidtheriskofre.

zThenumberofhorizontalsiliconeglueapplicationscanbeadjustedaccordingtopersonal

preference.Renogyrecommendsapplyinggluetotheedgeofthedouble-sidedtapewitha

widthof6-10mmandathicknessof3-5mm.

zDouble-sidedadhesivetapeshouldbeushwiththeedgeasmuchaspossible.

— 14 —

zAftertheinstallationiscompleted,itshouldbeleftfor72Htoensurethatthesiliconeisfully

cured,avoidingdirectsunlight,rainandotherharshweatherduringthecuringperiod.

zThemaximumbendoftheexiblemodulecanreach240°,butthisbendisforthe

convenienceofstorage,theactualinstallationisrecommendedtoinstalltheexible

modulehorizontally,ortheinstallationbendislessthan30°toensurepowergeneration

eciency.

zWhenashortedgeisusedasthebendingedge,thebendinganglemustnotexceed30°.

Sunlight

Components are fully illuminated Flexible Photovoltaic Modules

Fully sunlit area

Components are fully illuminated

Note:Astheinstallationanglebecomesmorecurved,thenon-illuminatedareaofthemodule

willincrease.Whenthebendingradiusexceeds30degrees,thenon-illuminatedareaofthe

modulewillexceed30%,whichwillaecttheoutputofthemodule.

5.3.2.Introductiontonon-atroofmountingmethods

Aftercleaningtheexiblemodules,stickdouble-sidedtapeoneachlongedgeofthe

componentforxing.Applythesiliconeaccordingtothewidthofthecorrugatedroof

protrusion;installthecomponentwithin5minutesafternishingthesiliconeapplicationto

preventthesiliconefromcuringandaectingthebondingperformance.Useaprofessional

pressingtoolandlightlypressthesurfaceofthecomponentalongthedirectionofgluing.The

distancebetweenthetwocomponentsis5~10mm.

Aftertheinstallationofthesiliconepartiscompleted,theexiblecomponentcanbefurther

xedbyapplyingboltsaccordingtothemountingholesthatcomewiththeexiblecomponent

itself.

Silicone position

Figure 3: Non-ﬂat gluing diagram Figure 4: Schematic diagram of

ﬂexible component mounting holes

Note:Renogyrecommendsthatnon-atroofneedtomeetaminimumof6siliconelineson

thebackside,ifthisconditionisnotmet,theexiblemoduleisnotsuitableforthisroof.

— 15 —

6. Renogy solar panels installation - Electrical installation

6.1. Electrical parameters

Thenominalvaluesofelectricalperformanceparametersforcomponents,suchasIsc,Voc,

andPmax,areobtainedunderstandardtestconditions.Thestandardtestconditionsfor

componentsincludeanirradianceof1000W/m2,celltemperatureof25°C,andairmassAM1.5.

Whencomponentsareconnectedinseries,theVocofthecombinationisthesumoftheVoc

valuesofindividualcomponents,andtheIscremainsthesameasthatofasinglecomponent.

Whencomponentsareconnectedinparallel,theVocisthesameasthatofasingle

component,andtheIscisthesumoftheIscvaluesofmultiplecomponents.Refertothegure

below.Itisnotrecommendedtoconnectcomponentswithdierentparameters,models,or

brandsinseriesorinparallel.

Themaximumnumberofcomponentsthatcanbeconnectedinseriesdependsonthe

maximumsystemvoltagesupportedbythecomponent.Afterbeingconnectedinseriesunder

thelowestlocaltemperatureconditions,theopencircuitvoltagecannotexceedthemaximum

systemvoltagevaluespeciedbythecomponent,suchasDC600V/DC1000V/DC1500V.In

practicalapplications,thenumberofcomponentsconnectedinseriesandparallelneedstobe

designedaccordingtotheparametersandmodelsofthecomponentsandcontrollers.

Theopencircuitvoltagecorrectionfactorcanbecalculatedusingthefollowingformula:

CVoc=1-βVoc×(25-T).Tistheexpectedminimumambienttemperatureatthesystem

installationlocation,andβ(%/°C)isthetemperaturecoecientoftheselectedcomponent

Voc(refertothecorrespondingcomponentparametertable).

Iftheremaybereversecurrentpassingthroughthecomponentthatexceedsthemaximum

fusecurrentofthecomponent,thesamespecicationovercurrentprotectiondevicemustbe

usedtoprotectthecomponent.Ifthenumberofcomponentsconnectedinparallelisgreater

thanorequalto2inaseries,theremustbeanovercurrentprotectiondeviceoneachseries

component,asshowninthegureabove.

6.2. Cable and Wiring

6.2.1 Introduction of cables and connections

Renogymodulesuseajunctionboxwithaprotectionratingforconnections(seemodule

specicationfordetails)toprovidesafeprotectionforthewiringanditscorresponding

connectionsandaccessibleprotectionfornon-insulatedliveparts.Thejunctionboxconsists

ofconnectedcablesandconnectorswithcorrespondingprotectionratings,whichfacilitate

theseries/parallelconnectionofmodules.Eachindividualmodulehastwowiresconnectedto

thejunctionbox,onepositiveandonenegative.Theconnectionofthepositiveandnegative

polesofthemodulescanbeachievedthroughtheMC4connectors.

— 16 —

Specialsolarcablesandappropriateconnectorsshouldbeusedinaccordancewithlocal

re,building,andelectricalregulations(thewiresshouldbecoveredbyaging-resistant

conduits,andifexposedtoair,shouldhaveaging-resistantproperties),andtheelectricaland

mechanicalpropertiesofthecablesshouldbeensured.

Afterthecableisinstalledandconnected,itshouldbeprotectedfrommechanicaldamage.Do

notpressthecabletoohard.Althoughthecableisresistanttoagingandwaterproof,itshould

alsobeprotectedfromdirectsunlightandrain.Theminimumbendingradiusofthecable

shouldbe43mm.

6.2.2 Extension cable selection for component-to-component connection

Renogycurrentlyprovidescustomerswithinter-moduleconnectioncablesmainlyintheform

ofSKU:RNG-EXTCB,withawirediameterspecicationof10/12AWG,andamaximumlengthof

40FTforextensioncables.

6.2.3 Extension cable for connecting the component to the controller

Renogycurrentlyprovidescustomerswithconnectioncablesbetweenmodulesand

controllersmainlyintheformofSKU:RNG-AK,withawirediameterspecicationof10/12AWG,

andamaximumlengthof40FTforextensioncables.

6.3. Connector

Pleasekeeptheconnectorsdryandclean,andensurethatthenutoftheconnectorisina

tightenedstatebeforeconnecting.Donotconnecttheconnectorsiftheyarewet,dirty,orin

anyotherunfavorablecondition.Iftheconnectorsarenotconnectedpositivelyandnegatively,

theydonothavewaterprooffunction.Afterinstallingthemodules,theyneedtobeconnected

assoonaspossibleorappropriatemeasuresneedtobetakentoavoidtheinltrationof

watervaporanddust.Avoiddirectsunlightandimmersioninwaterfortheconnectors.Avoid

theconnectorsfallingonthegroundorontheroof,causingparticlesordusttoenterthe

connectorsandaectingsubsequentuse.Incorrectconnectionsmayproducearcsand

electricshocks.Pleaseensurethatallelectricalconnectionsaresecure.Makesurealllocked

connectorsarefullyconnected.Itisnotrecommendedtousedierenttypesofconnectors

together.

6.4. Bypass Diode

Thesolarcellsinthesolarmoduleareconnectedinserieswithabypassdiodeparallel

protection,whichisencapsulatedinthejunctionbox.Whenahotspotphenomenonoccurs

inamodule,thediodewillstartworkingtopreventthemaincurrentfromowingthroughthe

hotspotcell,therebylimitingtheheatingandperformancelossofthemodule.Notethatthe

bypassdiodeisnotanovercurrentprotectiondevice.Ifthediodeissuspectedorconrmedto

befaulty,pleasecontactRenogy.Itisstrictlyprohibitedtoattempttoopenthejunctionboxof

themoduleonyourown.

— 17 —

7. Renogy solar panels installation - Grounding

Thedesignofthemoduleusesanodized,corrosion-resistantaluminumalloyframesasrigid

support.Inordertoensuresafeuseandpreventdamagefromlightningandstaticelectricity,

themoduleframemustbegrounded.Whengrounding,thegroundingdevicemustbeinfull

contactwiththealuminumalloyinterior,penetratingtheoxidelmonthesurfaceofthe

frame.Itisstrictlyforbiddentoaddanyadditionalgroundingholesonthemoduleframe.The

groundingconductororgroundingwirecanbemadeofcopper,copperalloy,oranyother

materialthatmeetstherequirementsofthecorrespondingnationalelectricalspecicationsas

aconductor.Thegroundingconductormustbeconnectedtotheearththroughanappropriate

groundingelectrode.Theholesmarkedwiththegroundingsymbolontheframecanonlybe

usedforgroundingandnotformoduleinstallation.Formoduleswithoutgroundingholes,they

canbegroundedbyconnectingthemtoagroundedelectricaldevice.

— 18 —

8. Renogy solar panels installation - Operation and maintenance

Itisrequiredtoperformregularinspectionandmaintenanceofthemodules,especiallyduring

thewarrantyperiod.PleasecontactRenogyin2weeksifanyabnormalityordamageisfound.

8.1. Solar panel cleaning

Theaccumulationofforeignsubstances(suchasdustandbirddroppings)ontheglass

surfaceofsolarpanelscanaecttheirpoweroutputandevencausehotspotsinthearea.

Theextentoftheimpactdependsonthetransparencyoftheforeignmaterial.Forexample,a

smallamountofdustontheglasssurfacecanaecttheintensityanduniformityofabsorbed

sunlight,thisusuallydoesnotcausedamagetothesolarpanel,andthepoweroutput

usuallydoesnotdecreasesignicantly.However,alargeamountofdustaccumulation,bird

droppings,andshadingbyplantscanformobstructions,whichcansignicantlyreducepower

outputandevenformhotspots.Itisrecommendedthatthesurfaceofthepanelsshouldnot

beobstructedbyanythingwhenthereissunlight.

Thecleaningfrequencydependsonthehowmuchforeignmatteranddebrisaccumulates.

Inmanyinstancesthefrontsubstrategetscleanedwiththerain,andyoucandecreasethe

cleaningfrequency.Itisrecommendedtowipetheglasssurfacewithwetspongeorsoftcloth.

Pleasedonotcleantheglasswithcleaningagentwhichcontainsacidoralkali.

Toavoidpotentialelectricalshockorburn,pleasecleanthePVpanelsintheearlymorningor

atdusk.DonotcleanthePVpanelswithdamagetotheglasssurface,backboardorwires.

8.2. Visual Inspection of PV Panels

InspectthePVpanelsvisuallytondifthereareappearancedefect,especially:

zIftheglassisbroken;

zCorrosionalongthecells’busbar.Thecorrosioniscausedbymoisturethathasinltrated

intothemoduleswhenthesurfaceencapsulationmaterialdamagedduringtheinstallation

ortransportation.

zIfthereisevidenceofburningonthepanel.

zChecktheencapsulationoftheconnectorwiththecable.

zEnsurethePVpanelsareuntouchedwithsharpobjects.

zEnsurethePVpanelsarenotshaded.

zChecktheconnectionbetweenthePVpanelsandthemountsandbrackets.

Page is loading ...

Renogy B15AH User manual

Related papers

Other documents