Decommissioning
SMA America, LLC
92
SB20_25_30HFUS-eng-IUS113711
Installation Guide
12 Decommissioning
12.1 Disassembling the Sunny Boy
Removing the connection of the Sunny Boy on the DC side
1. Disconnect the Sunny Boy from voltage sources (see section 8.1 ”Disconnect the Sunny Boy
from Voltage Sources” (page 65)).
2. Open the SMA DC Disconnect (see section 8.2 ”Open SMA DC Disconnect” (page 66)).
CAUTION
Danger of burn injuries due to hot enclosure parts.
• Wait before disassembling until the enclosure has cooled down.
WARNING
High voltages inside the SMA DC-Disconnect. Death or serious injuries.
After opening the SMA DC-Disconnect there are still high voltages inside the
SMA DC-Disconnect at the DC contacts of the DC terminal block and at the contacts of the
DC switch.
• Do not touch contacts at the DC terminal block and on the DC switch.
Using DC Terminal blocks
Disconnect the wires to the DC terminal block as described in section 12.7.2 ”Disconnect
wires from DC terminal block” (page 101).
