'HVAC - Refurb Liebert Efficiency'

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List:       inet-access
Subject:    HVAC - Refurb Liebert Efficiency
From:       "Eric Kagan" <eklists () axsne ! com>
Date:       2008-08-22 20:05:30
Message-ID: 001501c90492$6dcd7ed0$650ea8c0 () axsdom ! local
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We have an existing data center and it was originally designed with one
refurb Liebert System 3 and one new System 3 (the refurb was brought in due
to lead times).   Aside from "looks" the refurb unit functions perfectly
well and I was told the refurb company guts the unit and uses mostly new
parts yada yada yada...... These are chilled water only units - no
compressors.   We are in need of a 3rd unit and I am trying to determine if
we should go with another refurb or new ?  The refurb unit is about half the
price, but what I am wondering is if there is an efficiency issue (in terms
of power consuption / and cooling in general) that would warrant the extra
cost of the new unit ?  Just to give an idea - its about a $10K savings.  I
tried to do some lookups for white papers, etc and couldn't find anything
and I am trying to avoid bringing in an engineer to run the calcs as that
will defeat most of the savings.  Any info / docs / links would be
appreciated.

Thanks
Eric

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<DIV><FONT face=Arial size=2><SPAN class=140155619-22082008>We have an existing 
data center and it was originally designed with one refurb Liebert System 3 and 
one new System 3 (the refurb was brought in due to lead times).&nbsp;&nbsp; 
Aside from "looks" the refurb unit functions perfectly well and I was told the 
refurb company guts the unit and uses mostly new parts yada yada yada...... 
These are chilled water only units - no compressors.&nbsp;&nbsp; We are in need 
of a 3rd unit and I am trying to determine if we should go with another refurb 
or new ?&nbsp; The refurb unit is about half the price, but what I am wondering 
is if there is an efficiency issue (in terms of power consuption / 
and&nbsp;cooling in general)&nbsp;that would warrant the extra cost of 
the&nbsp;new unit&nbsp;?&nbsp; Just to give an idea - its about a $10K 
savings.&nbsp; I tried to do some lookups for white papers, etc and couldn't 
find anything and I am trying to avoid bringing in an engineer to run the calcs 
as that will defeat most of the savings.&nbsp; Any info / docs / links would be 
appreciated.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN 
class=140155619-22082008></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2><SPAN 
class=140155619-22082008>Thanks</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN 
class=140155619-22082008>Eric</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV></BODY></HTML>

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