SMA SB 3300TL - Manual (Page 31)

SMA Technologie AG Service and Maintenance
Operating Instructions SB3300TL-11:FE1905 Page 27
5 Service and Maintenance
In order to be able to use the Sunny Boy 3300TL even outdoors at places hard to
reach, the device was designed to ensure minimum maintenance. In order to ensure
safe operation it is normally sufficient to check the device approximately every two
months for visible damages. Also check if the red LED is on.
To obtain optimum yield the plant operator should check the performance under dif-
ferent irradiation conditions by controlling if the LEDs of the Sunny Boy 3300TL sig-
nals plausible normal operation (see chapter 3.3.4 "Description of Operating States"
(page 12)). Of course, this can also be checked with one of the optional communi-
cation devices.
It is only necessary to clean the Sunny Boy if heat dissipation is disturbed by dirt par-
ticles on the fins of the heatsinks or in the space between the inverter and the wall.
Carefully remove the dirt with an appropriate soft brush.
If the status LEDs are dirty and no longer clearly visible, remove the dirt with a moist
cloth. Solving agents, abrasives or corrosives may not be used for cleaning!