Correct. Once you have reestablished your off peak supply either:
1) If it's now connected to only the left hand consumer unit, it would need moving to the right hand off-peak one.
or,
2) If it's now connected to both consumer units, then it needs disconnecting from the left hand one, so that it only remains connected to the off-peak one.
1) If it's now connected to only the left hand consumer unit, it would need moving to the right hand off-peak one.
or,
2) If it's now connected to both consumer units, then it needs disconnecting from the left hand one, so that it only remains connected to the off-peak one.