This works do one at 6 then 12 inches.
My guess is the gear will shut down at room temp of 110f.
To op if this is a classic 'free' power deal run you miners at freq of 400 with fans at 35%
That will solve your sound issues and you heat issues.
The miners are stock 600M, so I already have them running at 525M with the fans at 40% and the boards are between 59c-65c right now. My issue is that the building AC shuts off on nights and weekends, so I just wanted to make sure I wasn't going to set off the sprinkler system. I was reading that the sprinkler systems trigger at 140f-150f, so just being cautious. I don't have a noise issue or personnel issue, I am just trying to figure out if I can run them without having to introduce cooling and ventilation modifications to the space.