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Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io

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Automating a window AC (lemmy.zip)

submitted 2 days ago* (last edited 2 days ago) by [email protected] to c/[email protected]

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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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[–] [email protected] 4 points 2 days ago (1 children)

It'll be fine as long as you don't try and start it up again within a few minutes of turning it off.

Pressure just needs to slowly bleed from the high pressure side to the low pressure side of the compressor before it starts again, so that it isn't initially stalled against high pressure.

[–] [email protected] 2 points 2 days ago (1 children)

Okay, that's fine. I can totally do that.

[–] [email protected] 1 points 1 day ago

These kind of "manual" a/c units normally have a little sticker or a caution in the manual to "wait 5 minutes before restarting".

People can easily trigger this kind of thing just by turning the thermostat back and forth, so there is usually a thermal cutout on the compressor to keep them mostly safe.

You can usually hear it when it activates, there will be a hum from the stalled compressor for a few seconds and then a little click, and then the compressor won't start for a minute or two.