enphase IQ8 User Manual

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation
3 © 2022 Enphase Energy Inc. All rights reserved. Mar 2022
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) ................................................................................................. 8
The Enphase IQ8 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
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......................................................................................................................................... 13
Enphase Equipment................................................................................................................................... 13
Other Items................................................................................................................................................. 13
Enphase Microinverter Installation............................................................................................................................ 14
Step 1: Position the Enphase 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 IQ 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..................................................................................... 18
Step 9: Connect the PV Modules ............................................................................................................. 19
Step 10: Enphase Energy system configurations...................................................................................... 19
Set Up and Activate Monitoring................................................................................................................. 23
Troubleshooting........................................................................................................................................................ 24
Status LED Indications and Error Reporting ............................................................................................. 24
LED Operation ................................................................................................................................... 24
DC Resistance Low – Power Off Condition ....................................................................................... 24

enphase IQ8 Specifications

General

Model	IQ8
Manufacturer	Enphase Energy
Efficiency	97.5%
Cooling	Natural convection
Warranty	25 years
Weight	2.2 lbs
AC Voltage	240 V
Frequency Range	60 Hz
Operating Temperature Range	-40°C to +60°C