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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 ?

I use a commercial AC to cool down my 42 GPUs and since march everything has been perfect!

To be more specific it's the Mitsubishi 24,000 BTU Wall Mounted Air Conditioner Air Handler
Model: PKA-A24KA7.TH

https://www.mitsubishitechinfo.ca/sites/default/files/SB_PKA-A24KA7_PUY-A24NHA7%28-BS%29_201908.pdf

I am planning to add more GPUs so that way I am sure the temperature and humidity are controlled plus it works during winter, the outdoor unit can do up until -40°C.

It cost me 7,358.40 CAD and I have professional technicians I can contact quickly if something wrong happened.

What will damage your GPUs the most is the heat, I am planning to keep healthy my GPUs for years to come and I don't have to bother anymore with a ventilation system which you have to constantly adjust manually based on the outside temperature.

It's been amazing up until now but for someone with high electricity cost it might not be financially wise. Here in Québec I pay 0,10$ per kWh which is pretty low and our electricity comes from a green and renewable source.

False

What most kill GPU are the moist.

Never use AC units if you want your GPU last years.

I have 56 GPU in a a room at 34C all year since 2017 (somethimes the room get at 40C) and all perfect, so far 2 MSI armor and 1 Powercolor fail but thats a problem with the heatsink (in this models they dont touch the memory, only the GPU) i fix then reballing the memory that fail.

Just put all the cards on a "Hot Room" and "Cold Room" and you will fine.

Miner container is the best example.

AC removes moist, it dehumidifies the air.

also 24,000 btu is enough if you are in a cold climate but if you are in a hot climate you'll need x2 to x3 of that 24,000 btu.

You need buy a dehumidifier if you want remove the moist, not a AC conditioner. See how DATACENTERS remove the moist.

https://www.cielowigle.com/blog/dehumidifier-vs-air-conditioner/

if you want to dehumidify without air conditioning, dehumidifier will work but if you have an air conditioning then you don't need a dehumidifier., what you need to buy is a humidity measurement tool so you can decide if you need both or an AC is enough, chances are AC is enough.

the water dripping from the AC unit..that's water being removed from the air.