rstrouse

If you are referring to a 24vac valve actuator then the triac output is not a good choice for this. The valve circuitry always has one and only one leg...

But in your pictures you have a MEGA-BAS which is perfect for the inputs you need. No voltage dividers required. Honestly that home automation card isn't good for much because...

Now you are starting to have fun!

Honestly, triacs leak current so I wouldn't use it.