Calculating power and AC requirements for a server room

From: NetComrade (netcomrade@bookexchange.net)
Date: Thu Apr 22 2004 - 11:32:44 EDT


Gurus,

We are moving offices, and the construction company is bugging us about
power and AC requirements for a new server room (we have 3 half full
racks)

We have looked at the servers, and e.g. an E450 has a maximum power usage
of 13.6Amps (I would guess at 100V), and maximum heat output 5680 BTU/hr.

However, how do I get these #'s down to a realistic #?

Is there are some rule of thumb? If I calculate all maximum powers of all
equipment I get something like 110Amps and 47000BTU/hr, which is highly
unrealistic.

If you can point to some docs on standards, that could help too.

Thanks.
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