This is my latest basic diagram:
I should try it with a solid state relay too!
Note: Input VAC to the relay is recommended by myself to be from the transformer output AC but it can be 120VAC if your country uses that voltage. If you're in a 220VAC zone, use a relay that takes 220VAC or use the output from the transformer.
An externally hosted image should be here but it was not working when we last tested it.
I should try it with a solid state relay too!
Note: Input VAC to the relay is recommended by myself to be from the transformer output AC but it can be 120VAC if your country uses that voltage. If you're in a 220VAC zone, use a relay that takes 220VAC or use the output from the transformer.