Quote from: dagarair on January 16, 2018, 01:13:18 PM

Guys, I'm a mid size miner (i Have 250 rigs) I also own a HVAC company. I have survived 3 years of Texas summers where ambient is 105. The key and I can not stress this enough is ventilation. The more the better. Don't be stupid and add 1 box fan for 10 units on the window. Buy a 3000 cfm or bigger unit. Put it this way, I have 30 units in one location that is 130 square feet and air-flowing from attic and pumping out through window at a rate of 9000 cfm. Its a vortex in there to battle the Texas heat. Is cooling it better? Absolutely but the cost incurred is great, plus it takes 50 amps of mining away.

Calculation is this.

say you have 10 machines doing 1200 watts
10 x 1200 = 12000 watts
12000 x 3.41 (btu per watt) = 40,920 BTU
40,920 / 12000 (12k btu per ton of air) = 3.41 Tons

So you will need 3.41 Tons of air to cool just the machines so in this case a 4 ton unit should be fine.

Hope that clears stuff up.

Just curious i have about 22 rig each rig is doing about 600-700watt
22X700 =15400watt
15400 wattX 3.41 = 52514 BTU
53000BTU /24000(assume i buy aircon with 24kBTU) = so does that mean 2 such aircon is enough or maybe i add to 3 of such aircon?

I know alot will say is a waste but currently using ventilation cause alot of noise which i still think to run with aircon is it possible

yvmen

yvmen

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