Table Of Contents - enphase IQ8 Series Installation And Operation Manual

Microinverters

Design manual (75 pages)

Installation and operation manual (49 pages)

Quick install manual (6 pages)

Table of Contents

Contents

Important safety information ....................................................................................................................... 5

IQ8 Series Microinverters safety instruction ................................................................................................. 5

The Enphase IQ System ................................................................................................................................. 9

How the Enphase IQ8 Series Microinverters work ....................................................................................... 10

System monitoring ........................................................................................................................................ 10

Optimal reliability .......................................................................................................................................... 10

Ease of design ................................................................................................................................................ 10

Planning for microinverter installation ....................................................................................................... 11

Parts and tools required ............................................................................................................................... 13

Enphase microinverters installation ........................................................................................................... 14

Step 1: Position the IQ Cable ........................................................................................................................... 15

Step 2: Position the junction box .................................................................................................................... 15

Step 3: Mount the microinverters ................................................................................................................... 15

Step 4: Create an installation map .................................................................................................................. 16

Step 5: Manage the cabling ............................................................................................................................. 17

Step 6: Connect the microinverters ............................................................................................................... 17

Step 7: Terminate the unused end of the IQ Cable ....................................................................................... 18

Step 8: Complete the installation of the junction box ................................................................................. 19

Step 9: Connect the PV modules .................................................................................................................... 19

Step 10: Energize the system .......................................................................................................................... 20

Set up and activate monitoring ...................................................................................................................... 20

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

Status LED indications and error reporting .................................................................................................. 21

LED operation .................................................................................................................................................... 21

DC Resistance Low - Power Off condition ................................................................................................... 21

Other faults ....................................................................................................................................................... 22

Troubleshoot an inoperable microinverter .................................................................................................. 22

Disconnect a microinverter ............................................................................................................................ 23

Install a replacement microinverter .............................................................................................................. 24

IQ Cable planning and ordering .................................................................................................................... 25

IQ Cable accessories ....................................................................................................................................... 25

Technical data ................................................................................................................................................ 27

Technical considerations ................................................................................................................................. 27

Bifacial modules ................................................................................................................................................ 27

Anti-islanding .................................................................................................................................................... 27

PQ capability curve .......................................................................................................................................... 27

IQ8AC/IQ8HC Installation and Operation Manual

June 2023

USM-00005-2.0