Enphase IQ8 Install and Operation Manual

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Table of Contents

Important Safety Information .................................................................................................................................... 5

Read this First ........................................................................................................................................... 5

Product Labels ........................................................................................................................................... 5

Safety and Advisory Symbols..................................................................................................................... 5

IQ8 Microinverter Safety Instructions ......................................................................................................... 5

PV Rapid Shutdown Equipment (PVRSE) ................................................................................................. 7

The Enphase IQ8 System.......................................................................................................................................... 8

How the Enphase IQ8 Series Microinverters Work..................................................................................... 8

System Monitoring ..................................................................................................................................... 8

Optimal Reliability ...................................................................................................................................... 9

Ease of Design........................................................................................................................................... 9

Planning for Microinverter Installation....................................................................................................................... 10

Compatibility............................................................................................................................................... 11

Grounding Considerations.......................................................................................................................... 11

Branch Circuit Capacity.............................................................................................................................. 12

Utility Service Requirements ..................................................................................................................... 12

Wire Lengths and Voltage Rise................................................................................................................. 12

Lightning and Surge Suppression ............................................................................................................ 13

Parts and Tools Required......................................................................................................................................... 12

Enphase Equipment................................................................................................................................... 12

Other Items................................................................................................................................................. 12

Enphase Microinverter Installation............................................................................................................................ 13

Step 1: Position the Enphase IQ Cable..................................................................................................... 13

Step 2: Position the Junction Box ............................................................................................................. 13

Step 3: Mount the Microinverters .............................................................................................................. 14

Step 4: Create an Installation Map............................................................................................................ 14

Step 5: Manage the IQ Cabling................................................................................................................. 15

Step 6: Connect the Microinverters........................................................................................................... 15

Step 7: Terminate the Unused End of the Cable....................................................................................... 16

Step 8: Complete Installation of the Junction Box..................................................................................... 16

Step 9: Connect the PV Modules ............................................................................................................. 17

Step 10: Enphase Energy system configurations...................................................................................... 17

Set Up and Activate Monitoring................................................................................................................. 18

Troubleshooting........................................................................................................................................................ 21

Status LED Indications and Error Reporting ............................................................................................. 21

LED Operation ................................................................................................................................... 21

DC Resistance Low – Power Off Condition ....................................................................................... 22

Other Faults ........................................................................................................................................ 22

Troubleshoot an Inoperable Microinverter.................................................................................................. 23

Disconnect a Microinverter......................................................................................................................... 23

Install a Replacement Microinverter........................................................................................................... 24