Maintenance SMA America, LLC
82 SB50US-80US-IA-en-36 Installation Manual
10.2 Cleaning the Handle Covers
For optimal heat dissipation of the device, the handle covers must be clean. Clean the handle covers
regularly.
1. Remove the handle covers. To do this, put your
finger up into the space between the handle covers
and the enclosure and pull the handle covers to the
side
2. Clean the handle covers with a soft brush or a
paintbrush.
3. Re-secure the handle covers on the inverter. The
side on which they are to be mounted is stated on
the inside of the handle covers ("links/left" and
"rechts/right").
10.3 Checking the DC Disconnect
It is recommended, though not compulsory, to:
• Check the DC disconnect regularly.
• Activate the DC disconnect 10 times in a row once a year.
Operating the switch cleans the contacts and extends the life of the DC disconnect.
NOTICE
Insects can enter the Sunny Boy
Potential damage to the Sunny Boy.
• The handle covers must not be removed permanently, otherwise the inverter is not
protected against the ingress of insects.
In the case of normal use, the DC Disconnect does not require any maintenance.
Operating the switch cleans the contacts and extends the life of the DC Disconnect.
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