Sungrow SG3KTL-EC User Manual page 14

1 Safety Instructions
Maintenance and Service
Always keep in mind that the inverter is power supplied by dual power
sources: PV arrays and utility grid.
There is a risk of inverter damage or personal injury due to incorrect service
work!
Before any service work, you should obey the following procedures.
 Disconnect the inverter from the utility grid first and then PV arrays;
 Wait at least 10 minutes until the inner capacitors discharge completely;
 Verify that no voltage and current is present with appropriate testing
device.
Keep non-related persons away!
A temporary warning sign and barrier must be posted to keep non-related
persons away in any period while performing electrical connection and
service work.
 Any fault that may impair the inverter safety functions must be repaired
immediately before the inverter is restarted.
 Inverter contains no owner serviceable parts inside. Please contact local
authorized personnel if any service work is required.
Servicing of the device in accordance with the manual should never be
undertaken in the absence of proper tools, test equipments or more
recent revision of the manual which is clearly and thoroughly
understood.
There is a risk of inverter damage if it is improperly serviced.
Use only accessories and spare parts approved by the inverter
manufacturer. Never modify the inverter or its components. Otherwise, it
will cause loss of any or all warranty rights.
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User Manual