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INSTALLATION AND OPERATION MANUAL

July 01, 2019 141-00044-02

Enphase IQ 7, IQ 7+, and IQ 7X

Micros

IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation

Corporate Headquarters Contact Information

Enphase Energy Inc.

1420 N. McDowell Blvd.

Petaluma, CA 94954

USA

https://enphase.com/en-us/support/global-contact

Other Information

Product information is subject to change without notice. All trademarks are recognized as the property

of their respective owners.

User documentation is updated frequently; Check the Enphase website (enphase.com/support) for

the latest information.

To ensure optimal reliability and to meet warranty requirements, the Enphase Microinverter must be

installed according to the instructions in this manual. For warranty text refer to enphase.com/warranty.

For Enphase patent information refer to enphase.com/company/patents/.

Audience

This manual is intended for use by professional installation and maintenance personnel.

 
IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation 
  © 2019 Enphase Energy Inc. All rights reserved.  141-00044-02 
 
3 
Table of Contents 
Important Safety Information .................................................................................................................................... 5 
Read this First ............................................................................................................................................ 5 
Product Labels ........................................................................................................................................... 5 
Safety and Advisory Symbols..................................................................................................................... 5 
IQ 7 Microinverter Safety Instructions ........................................................................................................ 5 
The Enphase IQ System........................................................................................................................................... 8 
How the Enphase IQ Series Micros Work .................................................................................................. 9 
System Monitoring ................................................................................................................................. 9 
Optimal Reliability .................................................................................................................................. 9 
Ease of Design ....................................................................................................................................... 9 
Planning for Microinverter Installation..................................................................................................................... 10 
Compatibility ............................................................................................................................................. 10 
Grounding Considerations........................................................................................................................ 10 
Branch Circuit Capacity ............................................................................................................................ 11 
Utility Service Requirements .................................................................................................................... 11 
Wire Lengths and Voltage Rise ................................................................................................................ 11 
Lightning and Surge Suppression ............................................................................................................ 11 
Parts and Tools Required ....................................................................................................................................... 12 
Enphase Equipment ............................................................................................................................. 12 
Other Items .......................................................................................................................................... 12 
Enphase Microinverter Installation.......................................................................................................................... 13 
Step 1: Position the Enphase Q Cable ..................................................................................................... 14 
Step 2: Position the Junction Box............................................................................................................. 14 
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 Cable...................................................................................... 18 
Step 8: Complete 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................................................................................................ 23 
Disconnect a Microinverter ....................................................................................................................... 24 
Install a Replacement Microinverter ......................................................................................................... 25 
Ordering Replacement Parts .................................................................................................................... 26 
Enphase Q Cable Planning and Ordering ................................................................................................ 27 
Connector Spacing Options ................................................................................................................. 27 
Cabling Options ................................................................................................................................... 27 
Enphase Q Cable Accessories ............................................................................................................ 27 
Technical Data ........................................................................................................................................................ 28 
Technical Considerations ......................................................................................................................... 28 
Compliance Data ...................................................................................................................................... 28 
Anti-Islanding ....................................................................................................................................... 28 
PQ Capability Curve ............................................................................................................................ 28 
Specifications ........................................................................................................................................... 29 
IQ7-60-2-INT Microinverter Specifications ........................................................................................... 29 
IQ7PLUS-72-2-INT Microinverter Specifications ................................................................................. 31 
IQ7X-96-2-INT Microinverter Specifications ........................................................................................ 33 
Q Cable Specifications ......................................................................................................................... 35 
Enphase Installation Map ......................................................................................................................... 36 