Maintenance; Cleaning The Fans - SMA SUNNY BOY 5000-US Installation Manual

Maintenance

10 Maintenance
Regular maintenance ensures a long operating life and optimal efficiency of the entire PV plant.

10.1 Cleaning the Fans

The Sunny Boy is fitted with two fans on its underside.
The fan intakes and handle covers should be cleaned periodically with a vacuum cleaner. For more
thorough cleaning, completely remove the fans.
NOTICE
Potential damage to the fans due to compressed air.
• Do not use compressed air for cleaning.
• Use a soft brush or a cloth for cleaning.
• Always remove the fans for cleaning.
1. Disconnect the Sunny Boy on the AC and DC sides.
2. Wait 5 minutes until the residual voltage has been drained and the fans are no longer turning.
Cleaning the Fan Guard
3. Remove the ventilation grids.
– Press both latches on the right edge of the fan
guard to the right using a screwdriver and
loosen from the bracket.
– Carefully remove the fan guard.
4. Clean the ventilation grid with a soft brush, a paint brush, a cloth or compressed air.
80 SB50US-80US-IA-en-36
SMA America, LLC
Installation Manual