Replace A Microinverter - APsystems QT2 Installation Manual

7. Replace a microinverter

Follow the procedure to replace a failed APsystems Microinverter
A. Disconnect the APsystems Microinverter from the PV Module, in the order shown below:
1. Disconnect the AC by turning off the branch circuit breaker.
2. Disconnect the inverter AC connector from the AC Bus.
3. Disconnect the PV module DC wire connectors from the microinverter.
4. Remove the Microinverter from the PV array racking.
B. Install a replacement Microinverter to the rack. Remember to observe the flashing green
LED light as soon as the new Microinverter is plugged into the DC cables.
C. Connect the AC cable of the replacement Microinverter to the AC bus.
D. Close the branch circuit breaker, and verify proper operation of the replacement
Microinverter.
E. Update the microinverter in EMA Manage through "Replace" function and update the
system's map with new serial number labels.
APsystems Microinverter QT2 Installation Manual 19