SMA SB 3300-11 Installation - Manual (Page 48)

Maintenance and Cleaning SMA Solar Technology AG
48 SB33-38-11-IA-en-62 Installation Manual
8.2.3 Cleaning the Ventilation Grids
There are ventilation grids on each side of the inverter. The inverter takes cooling air in from
underneath via the fan and blows it out again through the ventilation grids on the upper left side.
For optimal heat dissipation of the inverter, you only have to clean the left ventilation grid.
Procedure
1. Remove the left ventilation grid.
Insert your finger in the space between the
ventilation grid and the upper part of the enclosure
and remove the ventilation grid to the side.
2. Clean the ventilation grid with a soft brush, a paint
brush, or compressed air.
3. Re-attach the ventilation grid to the inverter.
To help you identify the sides, the ventilation grids
are marked with "links/left" or "rechts/right" on the
inside.
☑ The ventilation grids are cleaned.
NOTICE!
Risk of damage to the inverter through intrusion of insects.
• The ventilation grids must not be removed permanently, because otherwise the
device is not protected against the entrance of insects.