Table of Contents
Read This First .........................................................................................................................3
Important Safety Instructions.......................................................................................................................4
Safety Message Types...................................................................................................................................4
General Safety...............................................................................................................................................5
Disclaimer of Liability....................................................................................................................................6
Chapter 1: Product Overview .......................................................................................... 9
Dimensional Drawings ...........................................................................................................10
Physical Overview..................................................................................................................11
Bar Code Label.......................................................................................................................11
Specifications.........................................................................................................................12
13.5A Output Models..................................................................................................................................12
12.8A Output Models..................................................................................................................................13
12A Output Models.....................................................................................................................................14
Chapter 2: Planning Installation..................................................................................... 15
Overview...............................................................................................................................15
Input Criteria .........................................................................................................................15
Acceptable Input Configurations ................................................................................................................15
Unacceptable Input Configurations ............................................................................................................16
Acceptable Input Configurations Between Parallel Optimizers..................................................................16
PV System Configurations ......................................................................................................17
Ungrounded PV Systems.............................................................................................................................17
Resistively Grounded PV Systems (positive or negative)............................................................................17
Fuse Sizes ....................................................................................................................................................17
DC-coupled Storage ....................................................................................................................................18
Inter-row Shading Wiring Example .............................................................................................................18
Output Connector Polarity..........................................................................................................................19
Chapter 3: Installing the Ampt String Optimizer............................................................. 21
Getting Started ......................................................................................................................21
Parts and Tools Needed..............................................................................................................................21
Mounting and Grounding the String Optimizer .......................................................................22
Steps............................................................................................................................................................22
Making Electrical Connections................................................................................................23
Connecting the Inputs.................................................................................................................................24
Connecting the Output ...............................................................................................................................27
Uninstalling an Optimizer.......................................................................................................28
Parts and Tools Needed ..............................................................................................................................28
Steps............................................................................................................................................................29
