SMA ST6-US - Manual (Page 52)

Cleaning and maintenance SMA America, LLC
52 ST36-48US-IA-IUS112321 Installation Guide
10 Cleaning and maintenance
Remove dirt and dust from the air vents (A) of the Sunny Tower once a year. If the Sunny Tower is
operated in areas with a high amount of dust or dirt check the air vents for dirt more frequently.
• Use vacuum cleaner for cleaning the air vents.
• Additionally use a soft brush in order to loosen the dust or dirt.
• Make sure that no loose dust or dirt gets inside the Sunny Tower.
To ensure the proper operation of the Sunny Tower operate each AC/DC disconnect at least once a
year for 10 times as follows:
1. Turn from position “0“ (off) to position “1“ (on).
2. Turn back from position “1“ (on) to position “0“ (off).
3. Repeat steps 1 and 2 with the remaining AC/DC disconnectors.