Installation Procedures; Step 1 - Verify That Grid Voltage Matches Microinverter Rating; Step 2 - Y3 Ac Bus Cable Distribution; Step 3 - Attach The Apsystems Microinverters To The Racking - APsystems DS3D User Manual

4.APsystems Microinverter System Installation

4.3 Installation Procedures

4.3.1 Step 1 - Verify that grid voltage matches microinverter rating

4.3.2 Step 2 – Y3 AC Bus Cable distribution
a. Each connector drop of the AC Bus cable shall be matching the position of the
microinverter.
b. One end of the AC bus cable is used to access the junction box into the power grid.
c. Wire the conductors of the AC bus: L - BROWN ; N - BLUE；PE - YELLOW GREEN.
Wiring color code can be different according to the 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 damage is not covered by the
warranty.
It is strictly prohibited to hand carry the microinverter by its AC cable.

4.3.3 Step 3 - Attach the APsystems Microinverters to the Racking

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.
Install the microinverters (including DC and AC connectors) under the PV modules to
avoid direct exposure to rain, UV or other harmful weather events. Allow a minimum of
1.5 cm (3/4'') below and above the casing of the microinverter to allow proper air flow.
The racking must be properly grounded as per local electrical code.
APsystems Microinverter DS3D User Manual
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