Success driving 220v ice melt roof panels

I’m using a Z818-ND DPST high amp relay from digikey to swith the 220. I provide the 120v to open and
close the relay using a GE 45609 Lighting control on/off switch. Now I have to figure out how to set up a
on/off schedule using ( I assume) a vera 3 scene. I’'m not finding any good documentation or tutorials on
using scenes ???