Hi all,

I'm leaving the country for a month on Friday, and I've just received my miners.  They'll make ~$3.5k in coins at current prices over that month, so i really need them setup before then - however, very confused on power requirements.

Setting them up at NOCRoom data center in LA.  The initial contract had only 110v, though I know the S9's require 220v.  When I asked for a new price with 220v, they wanted 3 times the prices ($1,100 per month).

Therefore, I'm looking at keeping the contract to the 110v circuit, and using 2 transformers for the S9's:

https://www.amazon.com/LiteFuze-LT-3000-Voltage-Converter-Transformer/dp/B008GQTW7W/ref=sr_1_1_sspa?ie=UTF8&qid=1513202101&sr=8-1-spons&keywords=3000w+step+up+transformer&psc=1.  

Given that I'm not concerned about the power inefficiencies when adding transformers, should this be OK?  I'm looking at running 2 x L3's straight into the 110v, and 2 S9's via 3000W transformers into the 110v.

The contract provides 1 single 20A breaker @ 110v.  Will this suffice, or do I need more?

Thanks for your advice.

Hi guys, first post on this awesome and informative site.

I have 2 S9's and s L3+'s arriving to me in California this week, and I have some questions if I may:

1). I purchased the apw3++, and believe it will only produce 1200W on a 110V socket.  With this in mind:
               a). Will the L3+, as it only requires 800W, run fine from the wall?  Any concerns on heat or efficiency?
               b). Can I run the S9's 'indefinitely' on a 2000W 110v/220v transformer?  Any concerns here?  It's certainly more efficient than having a 220v outlet installed
               c). Can I run the 4 units from one or two outlets, if I use a good surge protector?  I was hoping for the 2 L3+s directly into the mains, then the S9's via the transformers.

2). I am purchasing some sound proof boxes, and want to run the ducting from the boxes down into one duct, using Y adapters.  So 4 hoses from the boxes, down into 2, then down to 1 that I vent out of the room.  Is there any concern here?  Not sure about the CFMs from each fan pushing down into 1 5" duct, not sure of the mechanics with pressure here?

3). I plan to daisy chain a router from my main one upstairs, using an output from router 1 to the input of router 2 down in the garage, then using the 4 Ethernet ports to feed each miner - does this sound doable?

Any other advice very welcome. 

Thank you!