I'm making this board it controls the heat and turn on of the dryer which code works fine
The gas valve has high limit and no fire sensor for safety and a damper that makes sure the fan is running.
So the boards only has Ac on the transformer side of the board which is plugged into the bottom
of Relay 1 to make easy replacement of the transformer. Have a look and be happy to tell me what you think I need to add.
Oh and the DS18B20 reads the temp of the dryer and cuts the gas off at 130 145 and 165. View attachment 69088