Installation
22
Install
ation
2
PV string considerations
There are a large number of PV module string combinations that will offer optimal performance
from the DC-coupled type inverters due to its wide MPP range (50 V – 450 V).
WARNING
Use the PV module manufacturer specified V/Temp coefficient or the temperature multiplication
factors given in the table in NEC 690.7 to ensure PV string voltage is less than 450 V DC. The
maximum inverter PV input voltage for all possible weather conditions varies based on the location
of installation.
INFO
System wiring voltage losses should be no greater than 1 to 2 percent for optimal system
efficiency and performance.
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