8 Installing the AST Assembly
2. Insert the new spacer supplied in the enclosure.
3. Clean the supporting surfaces in the enclosure. To
do so, use isopropyl alcohol and a lint-free cloth.
4. Insert suitable taps or similar tools as a mounting
aids into the attachment holes of the enclosure.
5. Carefully remove the AST assembly upwards out of the packaging. When doing so, ensure
that the thermally conductive plastic is not damaged or contaminated.
6. On the rear side of the AC power controller
assembly, check the pattern of thermally conductive
plastic for damages and impurities.
7. If the pattern of thermally conductive plastic on the rear side of the AC power controller
assembly shows evidence of damage, the AC power controller assembly must be replaced. If
small impurities are present, these can be carefully removed using a pointed tool.
8. Lead the AST assembly over the mounting aids and insert into the inverter enclosure.
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AST-STPTL10-RM-xx-10
SMA Solar Technology AG
Replacement Manual