How to make connection for 220V on this transformer?
Not quite. The connections would be as follows:


For 440-480V you would connect H3 and H2 together.
For 220-240V you would connect H1 to H3, and also connect H2 to H4.


I've cleaned up the diagrams to make it clearer:

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The location of the terminals in the diagram correspond exactly with the location of the terminals on the transformer, despite the fact it looks like two are reversed. The reason for them wiring it with a cross-over like they have is that the connections can then be made to adjacent terminals using bus bar as has been done in your picture.

The rated powers are as follows:


0.12kVA when driven from a 50Hz source
0.15kVA when driven from a 60Hz source