Hi
Who can provide me a simple gas burner control box circuit diagram.
Thank

"W" to "TH", "C" to "TR". That is as simple, and at the same time, as advanced a diagram as I can provide with the very limited info you have provided. There are many types of gas controls, and many methods of controlling them. Can you offer more details?

Hi
Any like satronic TFI 812
Thanks

One Satronic/by Honeywell box as per your order. LOL

http://www.eresol.eu/katalog/eng/tfi812en.pdf

Hi
Thank for your notation,
But I need detail function of electronic components in sample circuit
Bye

That is proprietary information guarded by every manufacturer and not to be published. In other words if I told you I would have to kill you to keep the secret. One note: If you click your heels twice and hold on to Toto real tight you might get to Kansas where they keep it all hidden. LOL

The secret to Toto is below.

http://en.wikipedia.org/wiki/Toto_(Oz)

But it can be seen inside control box , so it is not secret or hidden!