Table Of Contents - enphase IQ7 Installation And Operation Manual

Contents
Important safety information .................................................................................................................... 5
Read this first .......................................................................................................................................... 5
Product labels ......................................................................................................................................... 5
Safety and advisory symbols ................................................................................................................ 5
PV Rapid Shutdown Equipment (PVRSE) ........................................................................................... 9
1 The Enphase IQ System................................................................................................................... 10
1.1 How the Enphase IQ Series Microinverters work ..................................................................... 11
System monitoring ........................................................................................................................................ 11
2 Planning for microinverter installation .......................................................................................... 12
2.1 Compatibility ................................................................................................................................ 12
2.2 Grounding considerations ..................................................................................................... 12
2.3 Branch circuit capacity .......................................................................................................... 13
2.4 Utility service requirements ................................................................................................... 13
2.5 Wire lengths and voltage rise ................................................................................................ 13
2.6 Lightning and surge suppression .......................................................................................... 14
2.7 Parts and tools required ......................................................................................................... 14
Enphase Equipment .............................................................................................................................. 14
Other Items............................................................................................................................................. 14
3 Enphase microinverter Installation ................................................................................................ 15
Step 1: Position the IQ Cable ................................................................................................................ 16
Step 2: Position the junction box ........................................................................................................ 17
Step 3: Mount the microinverters ....................................................................................................... 18
Step 4: Create an installation map ...................................................................................................... 19
Step 5: Manage the cabling ................................................................................................................ 20
Step 6: Connect the microinverters .................................................................................................. 20
Step 7: Terminate the unused end of the cable ................................................................................. 21
Step 8: Complete the installation of the junction box .................................................................... 22
Step 9: Connect the PV modules ....................................................................................................... 22
Step 10: Energize the system .............................................................................................................. 23
3.1 Set up and activate monitoring ................................................................................................. 23
4 Troubleshooting ............................................................................................................................... 24
4.1 Status LED indications and error reporting ............................................................................ 24
4.1.1 LED operation ............................................................................................................................... 24
4.1.2 DC Resistance Low - Power Off Condition ............................................................................. 24
4.1.3 Other faults ................................................................................................................................... 25
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IQ7/IQ7+/IQ7X/IQ7A Microinverters Installation and Operation Manual
© 2023 Enphase Energy Inc. All rights reserved. September 2023
IOM-00028-1.0