YC600 Microinverter Quick Installation Guide
Step 1. Verify the grid voltage to match with the microinverter rating
Step 2. The AC bus distribution
a. The AC bus is arranged at the proper position of the microinverter.
b. One end of the AC bus access junction box into power grid.
c. Wire the conductors of the AC bus: L - BROWN; N - BLUE；PE - YELLOW GREEN.
NOTE: Wiring colour code can be different according local regulation, check all the wires of the installation before
connecting to the AC bus to be sure they match. Wrong cabling can damage irreparably the microinverters, such an issue is
not covered by the warranty.
Step 3. Attach the APsystems microinverters to the racking
NOTE: Do not place the microinverters (including DC and AC connectors) where exposed to the sun, rain or snow, even gap
between modules. Allow a minimum of 2 cm between the roof and the bottom of the microinverter to allow proper air
flow. The racking on which the microinverter is installed must be reliably grounded.
a. Mark the location of the microinverter on the rack, with respect to the PV module junction box or any other
obstructions.
b. Mount one microinverter at each of these locations using hardware recommended by your module racking
vendor. When installing the microinverter, grounding washer must be facing the racking.
Step 4. Ground the system
a. An earth wire is already inside the AC cable, thus the grounding work can be done directly
with it.
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