Sungrow SG2K5TL, Руководство пользователя

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SG2K5TL/SG3KTL/SG4KTL-31
User Manual
46
Email: service@sungrow.cn
We need the following information to provide you the best assistance:
y Type of the inverter
y Serial number of the inverter
y Fault code
y Brief description of the fault phenomenon
9.2
Maintenance
Once the inverter is well operated, normally inverter needs no maintenance or
calibration. It should be ensured, however, that the heat sink is not covered.
To ensure the functionality of the DC switch, it should be switched on and off (by
turning the switch to on and off positions at least ten times) once a year.
9.2.1
Cleaning the Cabinet
Clean inverter by means of pressurized air or a soft cloth or a brush. Do not use a
water hose, aggressive chemicals, cleaning solvents or strong detergents to clean
inverter.
9.2.2
Cleaning the Heat Sink
In order to secure proper function and extend inverter service life, it is essential that
the free air circulation around the heat sink and the fan(only for SG4KTL-31) at the
back of the inverter is not obstructed. If the free air circulation is obstructed, e.g. by
dust, this has to be removed.
9.2.3
Battery Maintenance
There is a button battery on the inner LCD PCB board. It may need to be serviced
when it comes to service life.
Step 1: Disconnect the connection of the output and input side.
Step 2: Wait for at least ten minutes.
Step 3: Loose screws of inverter upper lid.