SMA MEDIUM VOLTAGE POWER STATION 500SC-JP - Cleaning the Air Duct and Ventilation Grids; Cleaning the Ventilation Plate

10.5.2 Cleaning the Air Duct and Ventilation Grids
Danger to life due to electric shock or electric arc if live components are touched
If the MVPowerStation and its devices are not correctly disconnected, dangerous voltages may be present in the
components which, if touched, will result in death or serious injury.
• Disconnect the MVPowerStation (see Section7.6, page101).
• After switching off the inverter, wait at least 15minutes before opening it to allow the capacitors to discharge
completely.
• Ensure that the MVPowerStation and its devices are voltage-free.
Procedure:
1. Disassemble the ventilation grids (see Section12.3.1.3, page165).
2. Vacuum the air duct from the outside or clean it with a brush.
3. Vacuum the ventilation grids or clean them with a brush.
4. Check the ventilation grids for visible damage. Replace the ventilation grids, if required.
5. Mount the ventilation grids (see Section12.3.1.3, page165).
10.5.3 Cleaning the Ventilation Plate
Danger to life due to electric shock or electric arc if live components are touched
• Switch off the inverter and wait at least 15minutes before opening it to allow the capacitors to discharge
completely.
• Disconnect the inverter (see Section7, page96).
Procedure:
1. Disassemble the panels (see Section12.3.1.2, page164).
2. Disassemble the exhaust duct under the inverter.
3. Pull the ventilation plate out of the inverter cabinet. Grip
underneath the ventilation plate and press the middle part up
while pulling it out.
4. Clean the ventilation plate with a brush or vacuum.
10 Maintenance
SMA Solar Technology AG
System ManualMVPS22JP-SH-en-11146