Product Manual

QS1 Installation/User Manual
9
4.APsystems Microinverter System Installation
4.3 Installation Procedures
4.3.1 Step 1 - Verify the grid voltage to match with microinverter rating
4.3.2 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 - BLACK ; L - RED .
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.
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. W
hen install microinverter, grounding washer Must be
facing the racking.
Figure 2
Prior to installing any of the microinverters, verify that the utility Voltage at the
point of common connection matches the voltage rating on microinverter label.
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 3/4’’(1.5cm.)
between the roof and the bottom of the Microinverter to allow proper air flow. The
racking of install microinverter must be reliably grounding.
4.3.4 Step 4 - Ground the system.
grounding washer