APsystems Microinverter DS3 series 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 the EMA Manager through the "Replace" function and update the system's map
with new serial number labels.
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