APsystems QS1A Quick Installation Manual

Please scan the QR code to get
mobile app and more support
to help the installation.
QS1A Microinverter Quick Installation Guide
The sketch of QS1A support system.
All the PV modules are placed into two lines. Then put a QS1A in the middle of the two lines and make
sure it is easy to connect with four PV modules which are next to it, as well all the cables.
QS1A
QS1A

Verify the grid voltage to match with microinverter rating

Step 1.

The AC bus distribution

Step 2.
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
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.

Attach the APsystems Microinverters to the racking

Step 3.
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 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.
NOTE:Forbidden to hand carry the
inverter through AC cable.
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 install microinverter, grounding washer Must be facing the racking.

Ground the system

Step 4.
a. There already has earth wire inside the AC cable, thus the grounding work could be done directly by it.
For those areas that have special requirements, the external grounding work could be done by
a.
grounding brackets.

Connect the APsystems Microinverter to AC bus cable

Step 5.
Push the microinverter AC connector to the trunk cable connector. Listen for the "Click".
Power grid
QS1A
: L - BROWN; N - BLUE;PE - YELLOW GREEN.
1
grounding washer
Warning injure hand
grounding brackets
2020/04/29 Rev1.0 Quick Installation Guide