Table Of Contents - enphase C250 Installation And Operation Manual

Table of Contents

Important Safety Information .......................................................................................................................................... 5
Read this First .................................................................................................................................................. 5
Product Labels ................................................................................................................................................. 5
Safety and Advisory Symbols........................................................................................................................... 5
Safety Instructions ............................................................................................................................................ 5
General Safety ............................................................................................................................................. 5
Microinverter Safety ..................................................................................................................................... 6
Engage Cable and Accessory Safety .......................................................................................................... 7
Envoy Safety ................................................................................................................................................ 8
The Enphase C250 Microinverter System ...................................................................................................................... 9
How the Microinverter Works ......................................................................................................................... 10
System Monitoring ..................................................................................................................................... 10
Optimal Reliability ...................................................................................................................................... 10
Ease of Design ........................................................................................................................................... 10
Planning for System Installation ................................................................................................................................... 11
Compatibility and Capacity ............................................................................................................................. 11
Compatibility .............................................................................................................................................. 11
Branch Circuit Capacity ............................................................................................................................. 11
Utility Service Requirements ...................................................................................................................... 11
Lightning and Surge Suppression .................................................................................................................. 12
Pre-installation Tasks ..................................................................................................................................... 12
Required System Components ...................................................................................................................... 13
Other Items ................................................................................................................................................ 13
Enphase System Installation and Commissioning ........................................................................................................ 14
Step 1: Register the System........................................................................................................................... 15
Step 2: Place the Envoy ................................................................................................................................. 15
Step 3: Position the Enphase Engage Cable ................................................................................................. 16
Step 4: Terminate the Unused End of the Engage Cable .............................................................................. 17
Step 5: Attach the Microinverters to the PV Racking ..................................................................................... 18
Step 6: Dress the Engage Cable .................................................................................................................... 19
Step 7: Connect the Microinverters ................................................................................................................ 20
Step 8: Connect to an AC Branch Circuit Junction Box ................................................................................. 21
Step 9: Complete the Installation Map ........................................................................................................... 23
Step 10: Connect the PV Modules ................................................................................................................. 24
Step 11. Energize the System ........................................................................................................................ 24
Step 12: Connect the Envoy to the Internet ................................................................................................... 25
Method A: Ethernet Cable .......................................................................................................................... 25
Method B: Wi-Fi (Enphase Wireless Adapter) ........................................................................................... 25
Verification: Check the Internet Connection ............................................................................................... 25
Step 13: Use the Envoy to Complete System Setup ...................................................................................... 26
Step 14: Build the Virtual Array ...................................................................................................................... 26
Troubleshooting ............................................................................................................................................................ 27
Status LED Indications and Error Reporting .................................................................................................. 27
Startup LED Operation ............................................................................................................................... 27
Post-Startup LED Indications ..................................................................................................................... 27
DC Resistance Low - Power Off Fault ...................................................................................................... 28
Other Faults ............................................................................................................................................... 28
Troubleshoot an Inoperable Microinverter...................................................................................................... 28
Disconnect a Microinverter ............................................................................................................................. 30
Install a Replacement Microinverter ............................................................................................................... 31
Engage Cable Planning and Ordering .......................................................................................................................... 32
Connector Spacing Options ........................................................................................................................... 32
Cabling Ordering Options ............................................................................................................................... 33
Planning for Cable Lengths and Type ............................................................................................................ 33
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C250 System Installation and Operation
141-00025 Rev 03