DATACENTER: Datacenter HVAC requirements

[Mark Smith <marksmith99@yahoo.com>]

Ok, so if I look in my cool little master converter program it tells me
that 1 watt = 3.4120962 BTU/hr. So my questions is how much cooling do
I need for my datacenter? Is it as simple as:

# racks * 20 amps a rack * 3.4120962 / 12,000 (BTUs in a ton) = tons of
HVAC required?

P.S. Most datacenters provide 20 amps AC a rack, but what about DC?

-Mark

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