400amp 220 volts sounds better
5 amps a unit
derate 20%
320 amps divide by 5 = 64 max
so running 55 is possible
now 1100 watts = 4000 btu
55 x 4000 btu = 220,000 btu
you need lots of exhaust fans
as for network a 5 port lan router one from the modem then connect to 2 x 16 port switches
do 5 miners to a rasp pi3 put 6 rasp pi's on each switch if the gear dies you can move all the rasp pi's to one switch.
Thanks @philipma1957!!, thats the kind of info I was looking for. Cheers
We have two 24" 24,000 CFM fans we were thinking of using somehow. I am seeing from your calculations, thats no where near enough to keep the pressure ratio correct.
Any suggestions??
@bdog1234 "Hope you are to too old - you might not live long enough to see them. "

I hope you hear back from them also. We are exploring GPU mining, but the cards are over priced locally, so we need to find bulk suppliers.
I just got an email from Canaan a few minutes ago as we requested their company registration info before wiring any money. Have you reached out to them? (sorry if a silly question), we have been very persistent with them, but always very pleasant.
Thanks @goose1072!