Thank you Ray and mrburns42.
To be honest im sure this is very simple but I am uncomfortable modifying the board too much with my very limited knowledge on electrics.
I think I may take the hit and purchase a 24-Volt AC Solenoid – at least I will then have a unmodified board and if I have difficulty will be easier to for me to get support 🙂
Thank you again, you have been very helpful!
And thank you Ray for a great system, wish I found this a few years back! 😉