SMA SUNNY BOY 4000TL, Руководство по установке

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Troubleshooting SMA Technologie AG
70 SB40TL_50TL-IEN081211 Installation Guide
8. Replace all varistors with new ones as shown in
this drawing. Varistor failure is generally due to
influences which affect all varistors similarly
(temperature, age, induced overvoltages).
If you do not receive a special tool for operating
the terminal clamps together with your
replacement varistors, please contact SMA. As an
alternative, the terminal contacts can be operated
using a 3.5 mm wide screwdriver.
Ensure the varistor is installed the right way round!
9. Insert the upper lid.
10. Close the lid.
11. Secure the two lid screws with the washers and a
torque of 2.4 Nm.
12. Close the lower lid of the Sunny Boy as described
in section 8.2 „Closing the Sunny Boy” (Page 51).
Insert the special
tool to open the
terminal
Remove
the varistor
The pole with the small loop
(crimp) must be fitted to terminal 1
when replacing the varistor.