Controlling a portable AC

[Shimbob]

Quite the ugly masterpiece. 6" ducts are in.

[sshscp]

Hello,

Does this work without an AC Snubber circuit? I have found without it inductive loads cause arcs through the relay that over time (3 or 4 uses from my observations) that cause the relay to fail open (powered on). I assume the compressor on the AC would be an inductive load.

[Shimbob]

That was in the back of my mind when I built the AC controller, but this being a prototype I went without for now. I will likely need to add something before it fries a relay. I'm not using the AC at the moment, still too cold as is.

For the dehumidifier I'm reusing the original power circuitry, which appears to include snubbers on the AC relays.

[Shimbob]

You made me order a 4-pack of snubbers, thanks!

[sshscp]

Please keep us posted. I am very interested in your project!

[Shimbob]

Not quite there yet, life's intruding. Got all the parts, just need to sit down, cobble the parts together, and bang out some code.

Should I start an instagram or something?

[grotbags]

good idea on the instagram, its real sad to see this forum going .

there is so much info on here, is there no way to archive it?.

[Rocket Soul]

From what Lgardener said to me in a pm: forum stays up as an archive but nobody can make new posts.