KC868-A4S for heating controll

[tadam]

A4S board power by DC 9-24V, can't use by DC 5V power supply.
I think if you don't use 4G module, you can use 2 free gpios from 4G module socket.

Thanks for the response. Sorry for the image, It doesn't look proper, but if you open it a new window, it looks okay.
So I need 24V psu to power the board, 5V psu to power the opentherm modul and 24AC psu to power the valves, and for the rest of the sensors I can use 3.3 which the board can provide. 
What are those pins? Is there a diagram which pins goes where?