APsystems YC500I-LK User manual

2017.11.30 Rev1.0 Quick Installation Guide

1

100mm

YC500I-LK Microinverter Quick Installation Guide

Step 1. Verify the grid voltage to match with microinverter rating

Step 2. Position the AC bus cable and install the AC branch circuit junction box

a. Install an appropriate junction box at a suitable location on the PV racking system.

b. Put one end of the AC bus cable into the branch junction box.

c. Place cable connecting to the point of utility interconnection into the branch junction box.

d. 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 or the PV module frame

NOTE:Do not place the inverters (including DC and AC connectors) where exposed to the sun, rai

n 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.

Attach to the racking

Option 1:

A

B

Option 2:

Attach to the PV module frame. Drill holes on the PV module frame before installing YC500I. Please check

with the module manufacturer the compatibilty of such installation process.

Step 4. Connect the APsystems microinverter to AC bus cable

Best Practice: Use the Bus Cable

Unlock Tool of AC Bus to split the

connectors.

M8

M4

54

54

46

M8

(not supplied by APsystems)

Please scan the QR code to get

mobile app and more support

to help the installation.

Click

AB

2017.11.30 Rev1.0 Quick Installation Guide

2

NOTE: AC connector interface as follows. NOTE: Cover any unused connectors with

Bus Cable T-CONN Cap to protect the connectors.

Step 5. Install a Bus Cable End Cap at the end of AC bus cable

a. Strip cable jacket. c. Insert the wires into the cable clamps.

b. Insert the cable end into the seal. d. Rotate the nut with 3.3N·m until the

latching mechanism meets the base.

Step 6. Place the PV modules and connect each YC500I to the PV modules

Step 7. Complete the APsystems installation map

Each APsystems microinverter has two removable serial number labels. Peel labels off, affix one to the

respective location on the APsystems installation map, and affix another to the PV module frame such

that it is easily visible. Use the Scanning Gun to scan the serial numbers on the map into the computer or

scan by mobile phone, then complete the setting (see ECU manual).

A

B

NOTE: Sequence of steps 1~7 can change for convenience of installation.

NOTE: Using apsystems' mobile app ArrayApp can make the installation and registion much more

simple.

Step 8. Start the operation

1. Turn on the AC circuit breaker on each Microinverter AC branch circuit.

2. Turn on the main utility-grid AC circuit breaker. Your system will start producing

power after a two-minute waiting time.

Product information is subject to change without notice.(Please download manuals at www.APsystems.com).

Nut

Seal

Body

L

PE

N

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