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Sunny Island
19 Servicing and Maintenance
The Sunny Island was designed as a robust device which requires extremely little
servicing. A few standard servicing tasks have to be fulfilled which can be easily
combined with servicing of other components in the island grid (lead-acid battery,
diesel generator etc.).
Device batteries
The inverter only puts a load on the three LR6 (AA, round) batteries in the terminal
area of the Sunny Island if it is not in operation, i. e. it is supplied neither by the lead-
acid battery nor by the AC grid. If not under load the batteries have to be exchanged
every five years only. Only replace them with alkaline cells of equal quality. For envi-
ronmentally friendly disposal of used cells follow the instructions of the local authori-
ties.
In case of increased ambient temperatures and frequent long-term switch-off of the
Sunny Island it may be necessary to exchange the batteries approximately every six
months. Please also follow the battery manufacturer's instructions!
In normal operation the batteries are not urgently required for Sunny Is-
land operation. In case of a failure, however, important data can be lost
without the batteries. These data could otherwise help you considerably
in finding the cause of the failure. Keep in mind that warranty may be re-
stricted in certain cases if data is lost due to improper servicing of the
batteries.
Connections
Annually check the incoming cables including the terminal area of the Sunny Island
for any visible damage and loosened mechanical connections. Apart from visual in-
BWRI33-12:EE
Installation and Operating Instructions
- 166 -
SMA Regelsysteme GmbH
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