
YC500I Installation/User Manual
Table of Contents
Important Safety Instructions..............................................................................................................2
Safety Instructions................................................................................................................................................ 2
Radio Interference Statement.............................................................................................................................. 3
Communication Statement...................................................................................................................................3
Symbols replace words on the equipment, on a display, or in manuals..............................................................4
APsystems Microinverter System Introduction.................................................................................. 5
APsystems Microinverter YC500I Introduction................................................................................... 7
APsystems Microinverter System Installation.................................................................................... 8
Additional Installation components from APsystems..........................................................................................8
Required Parts and Tools from you...................................................................................................................... 8
Installation Procedures......................................................................................................................................... 9
Step 1 - Position the AC bus cable................................................................................................................ 9
Step 2 - Install the AC branch circuit junction box....................................................................................... 9
Step 3 - Attach the APsystems Microinverters to the racking or the PV module frame..............................9
Stpe 4 - Connect the APsystems microinverter to AC bus cable................................................................10
Step 5 - Install a Bus Cable End Cap at the end of AC bus cable................................................................ 11
Step 6 - Connect APsystems Microinverters to the PV Modules................................................................11
Step 7 - Complete the APsystems installation map....................................................................................12
Step 8 - Place a Warning Notice................................................................................................................. 13
APsystems microinverter system operating instructions................................................................. 14
Troubleshooting................................................................................................................................. 15
Status Indications and Error Reporting...............................................................................................................15
Start up LED.................................................................................................................................................15
Operation LED............................................................................................................................................. 15
GFDI Error....................................................................................................................................................15
Other Faults.................................................................................................................................................15
Troubleshooting a non-operating APsystems Microinverter............................................................................. 16
Maintenance...................................................................................................................................... 16
Replace a microinverter.....................................................................................................................17
Technical Data.................................................................................................................................... 18
YC500I Microinverter Datasheet.........................................................................................................................19
Sample Wiring Diagram - Single Phase...............................................................................................................20