Specifications

InstallationandOperationManual(REVH) PVI6500/PVI7500
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35
3CommissioningtheInverterandPVSystem
Ensurethattheinverterismounted,allconnectionsaremadeandyouarereadytopoweritupbeforecontinuingwiththis
section.
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NOTE:Makesurealltools,parts,etc.areremovedfromthevicinityoftheinverterbeforeturningiton.
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WARNING:Makeafinalcheckforcorrectness
ofallACandDCwiringtotheinverterandinthesystem.
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NOTE:WiththePVmodulesconnectedandtheinverterdisconnectstillintheoffposition,itisgoodpractice
tocheckPVpolarityoncemoresimplybycarefullyusinga600V,DCratedCATIIIdigital
voltmeterandprobing
thepositive(+)andnegative(‐)PVconnectionsontheterminalblocksinthewiringbox.
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Turningontheinverterforthefirsttime:
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 STOP!CHECKYOURWIRING:
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WARNING!EXTREMESHOCKANDFIREHAZARD!
FAILURETO FOLLOW THEFOLLOWING PROCEDURECANRESULT IN
SERIOUSSHOCK,FIREDAMAGE AND
WILLVOIDINVERTERWARRANTY!
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WARNING!ARCFLASHHAZARD!
ALWAYSWEARAPPROPRIATEPERSONALPROTECTIVEGEARWHENWORKINGONENERGIZEDCIRCUITS!
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o REMOVEWIRINGBOXCOVER,Watchforliveterminalsandfuseholders.
o PVSTRINGFUSESSHOULDNOTBEINSTALLEDATTHISPOINT(Iftheyareinstalled,STOP!andsee
thesection“ReplacingPVFuses”intheMaintenancesectionattheendofthismanual)
o CHECKDCVOLTAGESOFALL
STRINGSUSING600VDCMETER
 MEASURED VOLTAGES SHOULDBE OPEN CIRCUIT VOLTAGE; IF THE MEASURED VOLTAGE
IS AT OR CLOSE TO 0.0V, THEN STOP! AND RECHECK YOURWIRING TOENSURE THERE IS
NOTADEADSHORT.
o CHECKDCPOLARITYOFALLSTRINGSUSING600VDCMETER
 MEASURED
VOLTAGES SHOULD INDICATE POSITIVE READINGS WHEN THE “RED” PROBE
OFYOURMETERISONTHEUNGROUNDEDTERMINALANDTHE“BLACK”PROBEOFYOUR
METER IS ON THE GROUNDED TERMINAL (except for positively grounded systems, in
which case see Appendix D at the end of this manual).IF THE MEASURED VOLTAGES
INDICATE
 A NEGATIVE POLARITY, THEN STOP! AND RECHECK YOUR WIRING TO ENSURE
THEPOLARITYOFTHESTRINGSISCORRECT.
o ONCETHEVOLTAGESANDPOLARITIESAREMEASUREDANDCONFIRMEDTOBECORRECT,INSTALL
THEPVSTRINGFUSES.
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 Unlockandturnonthededicated2 ‐polecircuit240/208VACcircuitbreakeronthehome/buildingelectricalpanel(or1‐
polebreakerfor277VAC)
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 UnlockandturnonthesystemACdisconnect(ifthesystemisequippedwithadditionalACdisconnect)
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 TurnontheDC/ACdisconnectonthe
inverter.
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 WatchtheLEDindicatorsforinitialization(allthreeLEDson)andLCDmessages.
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