Ten S19 Pro minners too hot

[Peter025425]

I have 10 Bitmain S19 pro miners, and I had a lot of problems with heating, where they first run at about 70-90 degrees, but after a couple of days some of them will have shut down from overheating. Trying different placements I managed to reduce the number of miners that shut down, and lowered the temperature some, but overheating always ends up being a problem.

My first solution when I started mining was to get a big ventilation, but I quickly concluded that the room was too hot.

Ventilation:

https://i.imgur.com/rVMGzb1.jpg

After that I tried to attach tubes to each miner that went to the ventilation, and the temperature in the room was normal, but the temperature in the tubes was too hot because the ventilation was not exhausting the hot air quickly enough to the outside.

Improved ventilation with tubes:

https://i.imgur.com/zt1vCzZ.jpg

I also want to expand with more miners, and the ventilation can hardly support more miners, so I was thinking of connecting tubes attached to the miners directly to the window, possibly with negative pressure fans to further help exhaust the hot air.

I figure this might not be sufficient, and the problem with the miners attached to the ventilation remains, so I was thinking about making a wooden box for the miners and has a hole that connects with a tube directly to an airconditioner. That way I get a flow of cold air from the outside, while exhausting the hot air to the outside. I am concerned about dust and moisture coming from the outside.

Now the question is if this is sufficient? And is there any better solution? Or maybe a cheaper one? Having a big airconditioner run 24/7 is after all very expensive.

[stompix]

After that I tried to attach tubes to each miner that went to the ventilation, and the temperature in the room was normal, but the temperature in the tubes was too hot because the ventilation was not exhausting the hot air quickly enough to the outside.

The tubes are too long and both the exhaust fans and whatever you have in that ventilation system can't push enough air outside, so you either shorten the length of the circuit or you boost the airflow
- add a more powerful fan to your room ventilation to suck that air
- put a blowing fan at the end to help expel it
- add booster fans in the tubes

I figure this might not be sufficient, and the problem with the miners attached to the ventilation remains, so I was thinking about making a wooden box for the miners and has a hole that connects with a tube directly to an airconditioner. That way I get a flow of cold air from the outside, while exhausting the hot air to the outside. I am concerned about dust and moisture coming from the outside.

For dust, you can put a hepa filter, but cooling directly 10 x 3000w machines with air conditioning unless you have 1-2c kwh is probably a no.

Out of pure curiosity, what's the average temperature outside?

[Peter025425]

After that I tried to attach tubes to each miner that went to the ventilation, and the temperature in the room was normal, but the temperature in the tubes was too hot because the ventilation was not exhausting the hot air quickly enough to the outside.

The tubes are too long and both the exhaust fans and whatever you have in that ventilation system can't push enough air outside, so you either shorten the length of the circuit or you boost the airflow
- add a more powerful fan to your room ventilation to suck that air
- put a blowing fan at the end to help expel it
- add booster fans in the tubes

I figure this might not be sufficient, and the problem with the miners attached to the ventilation remains, so I was thinking about making a wooden box for the miners and has a hole that connects with a tube directly to an airconditioner. That way I get a flow of cold air from the outside, while exhausting the hot air to the outside. I am concerned about dust and moisture coming from the outside.

For dust, you can put a hepa filter, but cooling directly 10 x 3000w machines with air conditioning unless you have 1-2c kwh is probably a no.

Out of pure curiosity, what's the average temperature outside?

This is really good advice, thank you! I knew the tubes were too long, but at the same time I knew only fixing the length of the tubes would not be enough.

You also confirm my ideas about the fans, and my doubts about the airconditioner; meaning I will see about adding a more powerful fan to the room ventilation, shorten the length of the tubes, put a blowing fan at the end, and also look into getting booster fans.

Using the outside air for cooling is not going to work. In the winter it is not really cold, but the combination of cold and humidity create moisture, which might be too much for the miners to handle. And in the summer it is very hot instead.

[Artemis3]

You need to move 400~500 CFM for each miner (x10 meaning 4k~5k), so if you have a strong inline fan somewhere in there, it might work. Of course you need to let that amount of fresh air to come in from the outside.

[Pendrak]

6 inch tubes are needed for any s9 variant, for a s19pro... you need 8 inch or more for each machine, the principal duct need to be bigger.

[philipma1957]

I have 10 Bitmain S19 pro miners, and I had a lot of problems with heating, where they first run at about 70-90 degrees, but after a couple of days some of them will have shut down from overheating. Trying different placements I managed to reduce the number of miners that shut down, and lowered the temperature some, but overheating always ends up being a problem.

My first solution when I started mining was to get a big ventilation, but I quickly concluded that the room was too hot.

Ventilation:



After that I tried to attach tubes to each miner that went to the ventilation, and the temperature in the room was normal, but the temperature in the tubes was too hot because the ventilation was not exhausting the hot air quickly enough to the outside.

Improved ventilation with tubes:



I also want to expand with moreA miners, and the ventilation can hardly support more miners, so I was thinking of connecting tubes attached to the miners directly to the window, possibly with negative pressure fans to further help exhaust the hot air.

I figure this might not be sufficient, and the problem with the miners attached to the ventilation remains, so I was thinking about making a wooden box for the miners and has a hole that connects with a tube directly to an airconditioner. That way I get a flow of cold air from the outside, while exhausting the hot air to the outside. I am concerned about dust and moisture coming from the outside.

Now the question is if this is sufficient? And is there any better solution? Or maybe a cheaper one? Having a big airconditioner run 24/7 is after all very expensive.

the main vent can not move 10 x 500 = 5000 cfm

I can tell by the size it is.

in order to move 5000 cfm you need a minimum 24 by 24 inch opening with a power fan straight out of a wall opening or a window.

i will find a link.


https://www.industrialfansdirect.com/collections/maxx-air-ventamatic/products/if18ups-exhaust-fan-shutters-1-speed-18-inch-3000-cfm-direct-drive-maxx-air


those vents above are 18 by 18 and do 3000 cfm you need two of them.
in a wall with zero resistance to send air outside.

your main vent looks like it is 18 by 30 inches .

right there that is too small. for 10 pieces.  try running five units see how it does.