Installation Guide

Position the power optimizer close enough to its module so that their cables
can be connected.
Make sure to use power optimizers that have the required output conductor
length:
Do not use extension cables between a module and a power optimizer,
between two modules connected to the same optimizer, or between two
optimizers other than in the cases specified below.
You can use extension cables between power optimizers only from row
to row, around obstacles within a row, and from the end of the string to
the inverter, as long as the maximum distance is not exceeded.
Completely shaded modules may cause their power optimizers to temporarily
shut down. This will not affect the performance of the other power optimizers in
the string, as long as the minimum number of unshaded power optimizers
connected in a string of modules is met. If under typical conditions fewer than
the minimum optimizers are connected to unshaded modules, add more
optimizers to the string.
Equipment grounding tightening torques: 4-6 AWG: 45 lb-in, 8 AWG: 40 lb-in,
10-14 AWG: 35 lb-in.
To allow for heat dissipation, maintain a 2.5 cm / 1" clearance distance between
the power optimizer and other surfaces, on all sides except the mounting
bracket side.
Figure 4: Power optimizer clearance
When installing modules in a confined space, for example, if installing Building-
integrated photovoltaic (BIPV) modules, ventilation measures may be needed to
Chapter 2: Installing the Power Optimizers 21
Three Phase Inverter with Synergy Technology Installation MAN-01-00401-1.5