Flat out you need more cooling. Keep in mind the air conditioners are 60k BTU in a perfect world, the will likely be a little lower then that. AND keep in mind you will need some other networking equipment in the room that will generate a bit of heat. AND slip air conditioners also put out a little heat. (blower fan, electronics and so on 1 is not a big deal 10 will be putting out a couple of hundred watts) once again not much in the normal world but you are hitting up against the maximum cooling they can do as it is.

Either add 2 AC units or take out a few miners. OR be even safer and do both, a little less profit is better then: https://youtu.be/fxGgx3YCCAA?t=8

-Dave