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8 Disconnecting, Dismantling and
Disposing the Inverter
8.1 Disconnecting the Inverter
For maintenance work or any service work, inverter must be switched off. In normal
operation, switching off is not necessary.
In order to disconnect the inverter from the AC and DC power sources, you should
proceed with the following procedures. Otherwise you will be exposed to lethal
voltages or the inverter will be damaged.
1. Rotate the external DC switch and AC switch at the sides of the inverter to
the “OFF” position and prevent them from reconnecting.
2. Turn off the upstream DC circuit break or cover the PV arrays with opaque
materials.
Please strictly follow the sequence of the above procedures. Otherwise it
will lead to unrecoverable inverter damage.
3. Wait about ten minutes until the capacitors inside the inverter have
discharged.
4. Loose the six screws on the lower combiner unit and then remove the lid.
5. Measure AC voltage to ground at the AC terminal to confirm AC output of
inverter at the AC circuit breaker is voltage free.
6. Loose screws to remove AC cables.
7. Disconnect DC cables from the inverters.
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