If connecting more panels than Power Optimizer inputs in parallel, use a branch
cable. Some commercial Power Optimizer models have a dual input.
Position the Power Optimizer close enough to its panel so that their cables can be
connected.
Make sure to use Power Optimizers that have the required output and input
conductor length.
Completely shaded panels may cause their Power Optimizers to temporarily shut
down. This will not affect the performance of the other Power Optimizers in the PV
string, as long as the minimum number of unshaded Power Optimizers connected in
a PV string of panels is met. If under typical conditions fewer than the minimum
Power Optimizers are connected to unshaded panels, add more Power Optimizers to
the PV string. To allow for heat dissipation, maintain clearance shown in
Equipment grounding tightening torques: 4-6 AWG: 45 lb-in, 8 AWG: 40 lb-in, 10-14
AWG: 35 lb-in.
Figure 1: Power Optimizers clearance
When installing PV panels in a confined space such as Building-integrated
photovoltaic (BIPV) panels, ventilation measures may be required to ensure that the
Power Optimizers are not exceeding the maximum temperatures stated in their
specifications.
Single Phase Energy Hub Inverter with Prism Technology MAN-01-00842-1.3
22
Installation Guidelines
Summary of Contents for RESU10H Prime Series
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