RS Isolating Transformer

[Bushbaby]

Hi All,
This evening I've had an opportunity to look at the output from this transformer using a 'scope. I have measured the outputs of the 55v - 0v- 55v on the lhs secondary output connectors (110v output - photos 1 and 2), the 60v - 0v - 60v on the lhs secondary output connectors (120v output - photos 3 and 4) and finally the 60v - 0v - 60v on the rhs secondary output connectors (120v output - photos 5 and 6). If I am correct(?) the outputs on the 120v lhs and 120v rhs appear to be in phase. Do I put a link from what was wired as the +ive lead on the 60v lhs to the -ive lead on the rhs in order to achieve a 240v output.

Thanks in advance

Regards

Rob