SMC Networks Sunny Mini Central SMC 5000A - Manual (Page 67)

SMA Technologie AG Maintenance and Cleaning
Installation Guide SMC50A_60A-IEN073320 Page 67
12 Maintenance and Cleaning
The Sunny Mini Central has been constructed so that maintenance is kept to a minimum.
To guarantee safe operation, it is usually adequate to observe the following principles:
•
Check the Sunny Mini Central visually for damage approximately every two
months.
• If necessary, clean the LEDs and the display with a damp cloth. Solvents, abrasives
or corrosive liquids must not be used.
• Regularly check that the display and the LEDs indicate the device is functioning
correctly. If necessary, correct faults using the explanation of the blink codes and
display messages contained in the operating manual of the Sunny Mini Central.
This information can also be obtained by using one of the communication options.
• Check the heat dissipation as described in section 12.1 "Checking Heat
Dissipation" (Page 67), if, during a visual inspection, you notice a marked build-
up in the fan guard or if the inverter is increasingly in derating mode (see
explanation of the blink codes and display messages in the operating manual of
the Sunny Mini Central).
• Check the Electronic Solar Switch for wear every time before recommissioning, as
described in section 12.2 "Inspection of the Electronic Solar Switch" (Page 72).
12.1 Checking Heat Dissipation
12.1.1 Cleaning the Fans
If the fan guards are only covered in loose dust, they can be cleaned with a vacuum
cleaner. If you do not achieve satisfactory results with a vacuum cleaner, you can
dismantle the fans to clean them.
The Sunny Mini Central is fitted with two fans on its underside. In order to clean the fans,
proceed as follows:
Plastic cover
DC AC