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System Commissioning
Lock the DC switch
a. Rotate the DC switch to OFF state, then rotate the DC switch to the left side;
b. Push the position indicated by the arrow upward (as shown in the diagram
below).
c. (Optional) After pushing the position upward, choose to lock the DC switch with
a lock.
Unlock the DC switch
a. Remove the lock. (If any);
b. Push the position indicated by the arrow down (as shown in the diagram below);
c. Wait for it to return to OFF state.