Verify That Grid Voltage Is Matching With Microinverter Rating; Y3 Ac Bus Cable Distribution; Attach The Apsystems Microinverters To The Racking; Ground The System - APsystems DS3D Quick Installation Manual

Step 1.

Verify that grid voltage is matching with microinverter rating

Step 2.

Y3 AC Bus Cable distribution

Each connector drop of the AC Bus cable shall be matching the position of the microinverter.
a.
b. One end of the AC bus cable is used to access the junction box into the power grid.
Wire the conductors of the AC bus: L - BROWN; PE - YELLOW GREEN; N - BLUE; (European Standard).
c.
NOTE: 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.
.
Step 3

Attach the APsystems Microinverters to the Racking

NOTE: 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.
ATTENTION: Do NOT carry the microinverter
by the AC cable. This may cause the AC cable to
partially or fully disconnect from the unit,
resulting in no or poor operation.
Mark the location of the microinverter on the rack, with respect to the PV module junction box or any other obstructions.
a.
Mount one microinverter at each of these locations using hardware recommended by your module racking vendor.
b.
M8
(Not supplied by APsystems)
Step 4.

Ground the system

Y3 AC Bus cable has an embedded PE wire: this might be sufficient to ensure proper grounding of the whole PV array. However
in areas with special grounding requirements, external grounding work may still be needed, using the grounding lug supplied
with the Microinverter.
DS3D Microinverter Quick Installation Guide
Grounding lug
2022/01/06 Rev1.4
2
Grounding washer
(Warning injure hand)
Quick Installation Guide