SMA SUNNY BOY 3600TL - Page 89

SMA Solar Technology AG 12 Troubleshooting
Installation Manual SB30-50TL-21-IA-en-21 89
8. Close and earth the inverter:
– Place one conical spring washer over each
screw. The grooved side of the conical spring
washer must face the screw head.
– Attach the upper enclosure lid to the enclosure
and tighten the centre lower screw halfway. Use
an Allen key (AF 4) to do this.
– Secure the upper enclosure lid in the sequence
1 to 5 (torque: 6 Nm). Use an Allen key (AF 4)
to do this.
☑ The teeth of the conical spring washer press into
the upper enclosure lid. The lid is thus earthed.
9. Close the lower enclosure lid and restart the inverter (see Section9.3 "Closing the Inverter",
page67).