SMA SB 3300-11 Installation - Manual (Page 47)

SMA Solar Technology AG Maintenance and Cleaning
Installation Manual SB33-38-11-IA-en-62 47
Plugging the Jumper
The inverter recognizes the jumper only after the system has been restarted
(i.e. all LEDs must have gone out before a restart).
1. Open the inverter as described in section 7.2 "Opening the Inverter" (page 41).
2. Plug the provided jumper in the slot on the system control board as shown below.
3. Close the inverter as described in section 7.3 "Closing the Inverter" (page 43).
4. Restart the inverter.
5. Check the air-flow of the fan.
The inverter draws air in from underneath and then blows it out at the top left.
Listen for any unusual noise that could indicate incorrect installation or that the fan is defective.
6. Remove the jumper. Open and close the inverter as described in section 7 "Opening and
Closing" (page 41).
☑ The fan test is completed.