enphase M215 Installation And Operation Manual page 3

Table of Contents
Important Safety Information .......................................................................... 4
Read this Before Installing or Using the M215 ...................................................... 4
Safety Instructions ........................................................................................... 4
The Enphase Microinverter System ................................................................... 5
How the Microinverter Works ............................................................................. 6
System Monitoring ........................................................................................ 6
Optimal Reliability ......................................................................................... 6
Ease of Design .............................................................................................. 6
Enphase Microinverter Installation .................................................................... 7
Compatibility and Capacity ................................................................................ 7
Parts and Tools Required ................................................................................... 8
Lightning Surge Suppression ............................................................................. 8
Installation Procedure ....................................................................................... 9
Step 1 – Measure AC at the Electrical Utility Connection ........................................ 9
Step 2 – Install the AC Branch Circuit Junction Box ............................................ 10
Step 3 – Position the Enphase Engage Cable ...................................................... 11
Step 4 – Attach the Microinverters to the PV Racking .......................................... 12
Step 5 – Dress the Engage Cable ..................................................................... 13
Step 6 – Terminate the Unused End of the Engage Cable .................................... 15
Step 7 – Connect the Engage Cable to AC Junction Box(es) ................................. 16
Step 8 – Ground the System ........................................................................... 17
Step 9 – Complete the Paper Map .................................................................... 18
Complete the Enphase Map .......................................................................... 18
Alternative: Create Your Own Map ................................................................ 18
Step 10 – Connect the PV Modules ................................................................... 18
Step 11 – Build the Virtual Array ...................................................................... 19
Commissioning and Operation ....................................................................... 20
Commissioning .............................................................................................. 20
Operating Instructions .................................................................................... 20
Troubleshooting ........................................................................................... 21
Status LED Indications and Error Reporting ....................................................... 21
Startup LED Operation: ................................................................................ 21
GFDI Fault: ................................................................................................ 21
Other Faults: .............................................................................................. 21
Troubleshooting an Inoperable Microinverter ..................................................... 22
Disconnecting a Microinverter from the PV Module .............................................. 23
Installing a Replacement Microinverter .............................................................. 24
Technical Data ............................................................................................. 25
Technical Considerations ................................................................................. 25
Technical Specifications .................................................................................. 26
Enphase M215 Microinverter Parameters ........................................................ 26
Enphase Installation Map ................................................................................ 28
Sample Wiring Diagram – M215, 240 Vac .......................................................... 29
Sample Wiring Diagram – M215, 208 Vac .......................................................... 30
Page 3 Copyright Enphase Energy Inc. 2011 141-00012, Rev 02c