Filter Checking And Cleaning - Sungrow SG2500U-MV System Manual

System Manual
Fan
Device
maintenance
Safety function
Software
maintenance
LCD time display
Firefighting device
Other devices
The frequency of maintenance operations could be increased according to the
environmental conditions of the place where the MV Station is suited, plant
capacity and on-site situations.
The maintenance interval should be shortened if the sand or dust deposition
around the operation site is serious.

12.2.3 Filter checking and cleaning

It is recommended to check and clean the MV Station filter at least every six
months.
The maintenance interval should be shortened to once every three months or
shorter if the dust deposition is heavy.
The air inlets located on the front and back sides of the MV Station are entrances of cool air.
Periodically clean and replace the filter cotton and filter screen to ensure the air circulation
and proper temperature inside the MV Station.
Cleaning and replacing operation are performed on the air inlet window outside the MV
Station:
Push the two spring lock catches toward the middle of the air inlet window to open the
Step 1
outside shutters of air inlet window.
Check the running state of the fan inside the MV
Station
Check if there is crack in the fan blade
Check if there is abnormal noise during the running
of the fan;
 Routine check the corrosion of the metal
components (once six months)
 Annually check the contactors (auxiliary switches
and micro-switches)
operation
 Check the running parameters (esp., voltage and
insulation)
 Check the emergency stop button and the LCD
stop function;
 Simulation shutdown
 Check the warning labels and other markings for
damage or unclearness. Replace them if necessary
 Optimize software
 Check each parameter setting
 Check if the time displayed on the LCD display is
correct;
 Replace the button cells on the back of the LCD
panel if time is incorrect after calibration.
Check the functionality of the firefighting devices
Replace the damaged lighting devices in time
to ensure the optimal
12 Routine Maintenance
Every six
months or
maintain
according to
real situation
From every six
months to
annually
From every six
months to
annually
From every six
months to
annually
From every six
months to
annually
Follow related
regulation
where the
project is
located
When
necessary
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