SMA SI 4548-US - Manual (Page 155)

SMA America, LLC 18 Maintenance and Care
Operating Manual SI4548-6048-US-BE-en-20 155
18 Maintenance and Care
The Sunny Island has been constructed for low maintenance. Thus, the necessary work is limited to
only a few points.
18.1 Enclosure
Check that the Sunny Island enclosure is mechanically sound. If damage (e.g. cracks, holes, missing
covers) endangers the operating safety, the Sunny Island must be deactivated immediately.
Larger particles of dirt should be removed from the device with a soft brush or similar item. Dust can
be removed with a damp cloth. Do not use any solvents, abrasives or corrosive liquids for cleaning.
18.2 Cleaning the Fans
The cleaning intervals depend on the ambient conditions. If the fans are covered with loose dust, you
can clean them with the aid of a vacuum cleaner (recommended) or a soft paint brush/hand brush.
Clean the fans only when they are at a standstill. If it is necessary to replace the fans, contact your
installer.
18.3 Display
It is best to clean the control elements with a soft, damp cloth. Do not use any solvents, abrasives or
corrosive liquids for cleaning.
Take care not to accidentally press the membrane buttons during cleaning. Only clean the membrane
keypad when the Sunny Island is deactivated.
18.4 Function
Check regularly whether error messages are present. If an error message is displayed, for which you
cannot identify any apparent cause, the off-grid power system must be inspected by an installer. To
ensure optimum operation, the operator should regularly check the Sunny Island entries in the error
list at short intervals (monthly, or even weekly), especially during the first months after commissioning.
This can help to discover hidden faults in the installation or errors in the configuration.