this post was submitted on 18 May 2025
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Automating a window AC (lemmy.zip)
submitted 15 hours ago* (last edited 15 hours ago) by shortwavesurfer@lemmy.zip to c/homeassistant@lemmy.world
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So I have my AC connected to a smart plug and I'm trying to figure out what would be the best way to go about automating it.

Currently, I have it set to run every hour on the hour for 20 minutes if the time is between noon and 8 p.m. Which covers the hottest part of the day.

However, what I could do is have it run every other hour instead and have a couple of night runs along with the daytime runs.

Doing it that way would eliminate most of the 16-hour period currently that exists between the ending of one day and the beginning of the next.

Edit: Also, is there an easy way to automate every other hour using the time pattern or would I manually have to set up triggers for 2am, 4am, 6am, 8am, 10am, etc. using the fixed values?

Edit 2: looks like i can use "/2" to accomplish that

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[–] couch1potato@lemmy.dbzer0.com 1 points 10 hours ago

Idk how complicated the internal wiring is but maybe a solution here is a pair of shelly relays. One for the ac and one for the compressor fan. Then you could turn them on/off separately over wifi based on whatever logic you come up with.