Operations Manual - PV Powered

Grid-tied Residential Inverters
Installation and Operation Manual
!
WARNING
Electrical connections must be completed in accordance with local electrical
codes and the National Electrical Code (NEC), ANSI/NFPA 70. Use 12 AWG
minimum, 90°C copper wire for all inverter electrical connections. Voltage
drop as well as other considerations may dictate using larger wire sizes.
NOTE: To avoid an increase in AC voltage level, which may lead to nuisance faults, PV
Powered recommends sizing the conductor for a drop of less than 2%.
!
!
WARNING
Ensure the breaker in the main utility service panel is switched OFF before
wiring the inverter. This breaker should be switched ON only after all wiring
has been completed as described in this manual.
WARNING
Follow the order listed below to wire the inverter. Failure to do so may result
in hazardous voltages or disconnection of contacts.
IMPORTANT: When mounting the inverter outside, use rain-tight or wet-location conduit
hubs that comply with the requirements in the Standard for Fittings for Conduit and Outlet
Boxes, UL 514B.
NOTE: Terminal connections for the inverter are located inside the inverter on the circuit
board at the bottom of the cabinet. The AC and DC terminals accept wires up to
6 AWG.
!
CAUTION
The DC/AC input and output circuits are isolated from the enclosure. The PV
equipment grounding conductor (EGC), where required by Sections 690-41,
690-42, and 690-43 of the National Electric Code (NEC), ANSI/NFPA 70,
is the responsibility of the installer. Failure to properly install the ground
conductor for the PV equipment can result in exposed metallic surfaces
becoming energized to the full potential of the PV array.
GFI Fuse External
Access Port
Drainage Port
Figure 3-5 Communications, AC and DC Ports
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