Hi Narius,
Pardon my delay.
This stuff is tricky because I can't see the documentation, but here goes:
Primary:
Black connect to Brown: this is ACTIVE
White connect to Orange: this is NEUTRAL
Secondary:
Yellow connect to Blue: this is STAR EARTH
Red: this is AC1
Grey: this is AC2.
Leaving the secondaries unconnected, set up the primary leads as above and connect up to the mains. Make sure this circuit is fused. Stand clear, and throw the switch.
Now, if all is well, measure from AC1 to AC2 (red to grey). It should be around 70Vac on the AC setting on the volt meter.
Now measure AC1 to star earth, and AC2 to star earth. Both should be 35Vac. If this all checks out, you are correctly wired.
Hope this is helpful....... and thanks to Carlman for his valued input!
Cheers,
Hugh