Table of Contents
Read This First ...............................................................................................................................3
Important Safety Instructions ..............................................................................................................................4
Safety Message Types ..........................................................................................................................................4
General Safety......................................................................................................................................................5
Disclaimer of Liability ...........................................................................................................................................6
Before You Begin ...........................................................................................................................7
Handling and Storage...........................................................................................................................................7
Quick Reference and Best Practices.....................................................................................................................7
Using Optional Wireless Communication ............................................................................................................7
Chapter 1: Product Overview............................................................................................... 11
Dimensional Drawings .................................................................................................................12
Physical Overview........................................................................................................................13
Bar Code Label.............................................................................................................................13
Chapter 2: ........................................................................................................................... 15
Understanding Electrical Configurations .............................................................................. 15
PV Array Configurations...............................................................................................................15
Ungrounded PV Arrays.......................................................................................................................................15
Grounded PV Arrays (positive or negative)........................................................................................................15
Acceptable Input Configurations ..................................................................................................16
Optimizer Input Requirements ..........................................................................................................................16
Fuses ...........................................................................................................................................18
Understanding Maximum Output Current and Fuse Sizing ...............................................................................18
Input Fuses.........................................................................................................................................................18
Two-in-Portrait Wiring .................................................................................................................19
DC-coupled Storage .....................................................................................................................19
Chapter 3: ........................................................................................................................... 20
Installing the String Optimizer ............................................................................................. 20
Getting Started ............................................................................................................................20
Parts and Tools Needed .....................................................................................................................................20
Mounting and Grounding the String Optimizer .............................................................................21
Mounting Considerations...................................................................................................................................21
Warning, Caution, and Notice Statements ........................................................................................................21
Steps...................................................................................................................................................................22
Making Electrical Connections......................................................................................................23
Understanding Connector Polarity.....................................................................................................................23
Warnings and Cautions ......................................................................................................................................24
