Connecting The Pv Strings To The Synergy Manager - SolarEdge SEK-I Series Installation Manual

NOTE
SolarEdge fixed input Voltage architecture enables the parallel strings to be of
different lengths. Therefore, they do not need to have the same number of
Power Optimizers, as long as the length of each string is within the permitted
range.

Connecting the PV Strings to the Synergy Manager

The inverter is designed with three DC input terminals. Nevertheless, each input may
connect to several parallel PV strings via an external combiner box. The combiner box
should be installed and connected before connecting to the Synergy Manager.
This simplifies the commissioning of the inverter by allowing testing and servicing near
the inverter.
To connect the DC wires to the Synergy Manager with DC wire lugs:
1. Thread wires with a maximum of 2 AWG cross section through the DC conduit.
2. Fasten the conduit nut and connect the 4-14 AWG ground wire of the conduit nut
to the Grounding terminal block (bus bar) in the Synergy Manager. Fasten the screw
of the bus bar with a torque of 2.2 lb.*ft.
Figure 20: Connecting the DC wires to the Synergy Manager
3. Route the DC wires to the DC+ and DC- terminals on the DC+ and DC- boards of the
Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx
Chapter 4: Connecting AC and PV Strings to the Synergy Manager 43