I have used a portable air conditioning unit, it cost about $800. I forget the brand it was though. But it works excellent for spot cooling, for a bigger room that might not work out as well. However if your servers are all stacked in a corner , this could be an option. One of the limitation was the length of the duct for expelling the hot air. It could only be a couple of feet long. So this unit, and hence your servers have to be very close to a window. 
Vivek
-----Original Message-----
From: MSU Network Administrators Group [mailto:[log in to unmask]]On Behalf Of John Resotko
Sent: Monday, March 17, 2003 12:27 PM
To: [log in to unmask]
Subject: Re: Computer Room Air Conditioning

I have looked into adding a grill of slats to the top of the door into our server room as the lowest cost possibility to bleed off some excess warm air. Physical Plant may be able to give you a price quote on what it would cost to add that to your existing door, or replace the door with one that has a ventilation grill installed.
 
I've also looked as small portable air conditioning units which are self contained.   APC, the company most well known for it's UPS devices, has had a line of server room air conditioning units for a while.  Their smallest, portable unit running on standard 120V AC is the NetworkAIR 1000.  According to their product literature, it can cool air as well as dehumidify, and has a price point around $800.  It sits on casters, has a built in shutoff timer, and also has an optional "Warm Air Discharge Kit" that includes duct, adapters, and a ceiling panel to fit most 24" ceiling panel mounts.  I haven't seen one in person, but I am considering one for my next budget cycle.  Check out http://www.apc.com for detailed information.
 
If anyone out there has experience with this kind of units, I would be interested in knowing if they met your needs.
 
 
John A. Resotko
Head of Systems Administration
MSU - Detroit College of Law
208 Law College Building
East Lansing, MI  48824-1300
email: [log in to unmask]
Phone: 517-432-6836
Fax: 517-432-6861
 

 

>>> [log in to unmask] 03/17/03 11:55AM >>>
We are currently having an issue with the temperature in our server
room. The building air controls are turned off on evenings and weekends
and the temperature spikes to an unacceptable level. I was wondering
what other units have done to combat this issue, and if there has been
any successful resolutions to this issue.

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