I have 4 pcs mining rigs. Each of them has 12 GPUs RX570 4GB.
Total 48 GPU. I want to use air conditioner for cooling.
What should I do ? is it safe to use air conditioner ?

cold air and hot air in the same room is a problem ?
I dont care about the profitibality I just want to know is there any problem if i use air conditioner ?
The cold air dircetly to the rigs or somewhere else direction ?

if there is anyone use air conditioner, please help me. I want to be set up a proffessional system.
7kw air conditioner is enough ?