so does it stay in that cooling mode until you restart the miner manually or after cooling down it'll restart automatically ?!
I have not had a miner reaching to the safety-lock state, but the logic states that you will most likely have to manually restart it , by manually i do not mean physically.
... or unless you're talking about happening at another time when things go out of control again and miner reaches to the boiling point.
yup i mean it will happen another time, when you have manually restarted the miner.
I was thinking of lowering the static fan and setting the air conditioner to its maximum level because I thought that if I set the fan speed on its highest level(or 90%), then the outtake fan would suck out the cool air inside faster (since I'm using duct to send out the hot air) and it would get warmer inside.
airflow is much more important that just cold static air, it get's pretty hot where I live, easily over 40c in the summer, I do not have solid scientific based explanations, but I know from personal experience that the higher the RPMs the cooler the gears run, regardless of the AC condition.
On the other side miners need enough air as well and I need to have the windows half-open which might defeat this option too.
you need to force air inside, an intake fan is a must , note that your AC does not bring in any air from outside, so with those high RPMs you would need to have some intake fan/s.
What would be your best choice with 2-3 miners ?
i wouldn't worry about a small qty like that, as long as you directing the hot air to the outside, you are good to go.
you can have a look at my set up here >
https://bitcointalk.org/index.php?topic=5087770.0forget the first small farm, look at the second one, ignore the hot room since you don't have to deal with it because you are using ducts to send the hot air out, so for your case i would say 1 small intake fan + 12k btu AC will keep those gears under 80 degrees.
and by the way, you can use awesomeminer , it has been super handy, it sends you emails if your miner reaches to x temp , you can also automate it to reduce freq, restart or do anything at any time, with the right set of rules it's as good as having an employee looking after your gears 24/7.