Q7 / IQ7+ / IQ7A / IQ7X Microinverter installation and operation manual
Table Of Contents
- Important Safety Information
- The Enphase IQ System
- Planning for Microinverter Installation
- Parts and Tools Required
- Enphase Microinverter Installation
- Step 1: Position the Enphase Q Cable
- Step 2: Position the Enphase Q Aggregator or Junction Box
- Step 3: Mount the Microinverters
- Step 4: Create an Installation Map
- Step 5: Manage the Cabling
- Step 6: Connect the Microinverters
- Step 7: Terminate the Unused End of the Cable
- Step 8: Complete Installation of the Enphase Q Aggregator or Junction Box
- Step 9: Connect the PV Modules
- Step 10: Energize the System
- Set Up and Activate Monitoring
- Troubleshooting
- Technical Data
IQ 7 / IQ 7+ / IQ 7X / IQ 7A Micro Installation and Operation
© 2019 Enphase Energy Inc. All rights reserved. 141-00043-03
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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
PV Rapid Shutdown Equipment (PVRSE) ....................................................................................................... 7
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 .................................................................................................................. 12
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 Enphase Q Aggregator or 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 Enphase Q Aggregator or 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 .......................................................................................................................... 27
Enphase Q Cable Planning and Ordering ...................................................................................................... 27