Sungrow SG3KTL-M User Manual

9 Troubleshooting and Maintenance User Manual
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9.3.2 Fan Cleaning and Replacement
y Disconnect the inverter from the grid first and then PV arrays before any
maintenance work.
y Lethal voltage still exists in the inverter. Please wait at least ten minutes
and then perform maintenance work.
y Fans’ maintenance work may only be performed by qualified electricians.
Fan Cleaning
There is a fan on the rear of the inverter for ventilation. It is recommended that the
fans are cleaned every six months.
Procedure:
1. Disconnect the output and input side.
2. Wait at least ten minutes.
3. Dismantle the inverter in the reversed direction of “Installation procedure”.
4. Loosen the two fixed screws on the back of the inverter.
5. Clean the fan with soft brush or vacuum cleaner.
6. Reinstall the inverter.
7. Re-connect the inverter.
8. Restart the inverter.
Fan Replacement
If the fan is overheat or makes an abnormal noise, please replace the fan. This task
should only be performed by qualified technician.

Sungrow SG3KTL-M Specifications

General

Model	SG3KTL-M
Start Voltage	80 V
Number of MPPTs	2
Max. AC Power	3300 W
Max Efficiency	98.1%
European Efficiency	97.5%
Cooling Type	Natural convection
Protection Degree	IP65
Rated AC Power	3000 W
Maximum AC Output Power	3300 W
Rated AC Voltage	230 V
Rated AC Output Voltage	230 V
AC Voltage Range	180-280 V
AC Output Frequency	50 Hz / 60 Hz
Operating Temperature Range	-25 °C ... +60 °C