> From: Edward Ned Harvey [mailto:lop...@nedharvey.com]
> Sent: Wednesday, August 24, 2011 9:29 AM
>
> If you get the enterprise product, you know what you're getting, and
that's
> why you're paying.
>
> If you get the "comfort" product, it's a calculated risk.
>
> Either way it's a calculated ri
> From: discuss-boun...@lists.lopsa.org [mailto:discuss-
> boun...@lists.lopsa.org] On Behalf Of Jason Healy
>
> http://www.e-comfortusa.com/products/mitsubishi-pkaa24ka4--
> puya24nha4-mr-slim--wall-mounted-mini-split-ac-cooling-only-system--
> 24000-btu/5543
I can't speak specifically about tha
On Tue, Aug 23, 2011 at 2:40 PM, Tracy Reed wrote:
> On Tue, Aug 23, 2011 at 09:52:36AM -0400, Brian Mathis spake thusly:
>> Also, you could improve the airflow by running a small fan in the
>> corner of the room; just something to move the air around a bit. Even
>> on low speed it will make a di
On Tue, Aug 23, 2011 at 09:52:36AM -0400, Brian Mathis spake thusly:
> Also, you could improve the airflow by running a small fan in the
> corner of the room; just something to move the air around a bit. Even
> on low speed it will make a difference in airflow over time.
This will only add heat t
On Tue, Aug 23, 2011 at 5:40 PM, Tracy Reed wrote:
> On Tue, Aug 23, 2011 at 09:52:36AM -0400, Brian Mathis spake thusly:
>> Also, you could improve the airflow by running a small fan in the
>> corner of the room; just something to move the air around a bit. Even
>> on low speed it will make a di
On Tue, Aug 23, 2011 at 09:12:19AM -0400, Jason Healy wrote:
> We're a school with a small server room that we're trying to keep cool (about
> 4 racks, plus some telco gear). We have a dedicated AC unit in the room
> right now, but it isn't able to keep up with the load in the space we have
> (
thinking outside the box here
I don't know if the room is on a wall where this could work, but you may
want to take a look at the coolerado systems (www.coolerado.com). I
haven't used these, but they claim to get the energy efficiency of a swamp
cooler without adding humidity to the air (~450
Thanks so much for the quick responses, this is all very helpful. A few
additional notes:
We're in Connecticut, so humidity isn't a huge problem most of the year.
Additionally, getting down below 5 F outside doesn't happen too often, so I
think we're in range there. Good point about 95 F for
discuss] Budget Cooling
-- Forwarded message --
From: Jason Healy mailto:jhe...@logn.net>>
Date: Tue, Aug 23, 2011 at 9:12 AM
Subject: [lopsa-discuss] Budget Cooling
To: LOPSA General Discussions mailto:disc...@lopsa.org>>
We're a school with a small server roo
On 8/23/11 9:12 AM, Jason Healy wrote:
We're a school with a small server room that we're trying to keep cool (about 4
racks, plus some telco gear). We have a dedicated AC unit in the room right
now, but it isn't able to keep up with the load in the space we have (the
airflow isn't great). R
On Tue, Aug 23, 2011 at 10:52 AM, Brian Mathis
wrote:
> Having the room at 75F does not sound like a problem to me. A lot of
> research has shown that running systems at higher temps has no
> significant impact on failure rates. This is research from places
> like Google and Amazon.
Probabiliti
On Tue, Aug 23, 2011 at 10:12 AM, Jason Healy wrote:
> Meanwhile, APC/Leibert are telling me that I'm crazy to consider another
> "comfort" unit in this space, as they're not rated for this kind of use. The
> units they sell are pretty and shiny, but are 5x the price (plus
> installation). I
I agree. When you need a highly reliable unit with a maintenance contract
and periodic checkups, hardly anything beats a liebert. It doesn't seem like
that is your situation. Like another said, invest in a decent temp monitor
and some auto shutdown mechanics.
Ps 75 is fine. In a recent press relea
On Tue, Aug 23, 2011 at 9:12 AM, Jason Healy wrote:
> We're a school with a small server room that we're trying to keep cool (about
> 4 racks, plus some telco gear). We have a dedicated AC unit in the room
> right now, but it isn't able to keep up with the load in the space we have
> (the airf
Jason-
If I was you I'd go with another Mitsubishi "Mr. Slim.". Sanctioned
or not I see these in small, unproper and proper, server rooms all the
time. They do a fine job... Not like the equipment in these rooms
fail faster than others.
Sure SNMP is nice, but for a few hundred bucks you can add
We're a school with a small server room that we're trying to keep cool (about 4
racks, plus some telco gear). We have a dedicated AC unit in the room right
now, but it isn't able to keep up with the load in the space we have (the
airflow isn't great). Room is hovering around 75 F with AC on fu
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