SMA SB 4200TL Multi-String - Manual (Page 31)

SMA Technologie AG Service and Maintenance
Operating Instructions SB4200-12:FE4804 Page 31
4 Service and Maintenance
To be able to use the Sunny Boy 4200TL Multi-String even outdoors at places hard
to reach, the device was designed so as to ensure minimum maintenance. 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 examine the performance with re-
spect to different irradiation whether the LEDs of the Sunny Boy 4200TL Multi-String
signals plausible normal operation (see chapter 3.2.4 "Description of Operating Sta-
tes" (page 16)). Of course you can also check this with one of the optional commu-
nication devices.
It is only necessary to clean the Sunny Boy if heat dissipation is disturbed by dirt par-
ticles on the fins of the heatsink 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!