[Trace-users] air-cooled condensers

[Anne Juran]

I think they changed that.  The library now uses a packaged EER and has
button to allow you to check what that includes


 

---

[Version 6.2.6] 9/1/2010
This update contains the following items: 

*	Added compressor energy breakout options for unitary equipment to
allow for packaged energy rates to be entered without manual separation. 

 

 

 

From: Duncan S. McClellan [mailto:dmcclellan at ClarkNexsen.com] 
Sent: Friday, June 22, 2012 3:42 PM
To: Anne Juran; 'Jim Pagliaro'; trace-users at lists.onebuilding.org
Subject: RE: [Trace-users] air-cooled condensers

 

Don’t forget to break out your packaged efficiencies into components if you
do it this way.  Typically, components include compressor, indoor fan, and
condenser fan.  You may need to do a hand calc to determine component
efficiencies that add up to your packaged efficiency.  Condenser fans
usually come in around 10% of your total package consumption.  The “cooling
plant” in trace is really just your compressor as far as unitary equipment
is concerned.  Indoor fan is entered in the “create systems” section of the
software.

 

 

 

Duncan McClellan PE, BEMP, LEED AP
Mechanical Engineer

CLARK NEXSEN 
Architecture & Engineering
6160 Kempsville Circle Suite 200A
Norfolk, VA 23502
757.455.5800 Office
757.455.5638 Fax
 <mailto:dmcclellan at clarknexsen.com> dmcclellan at clarknexsen.com 
 <http://www.clarknexsen.com%20> www.clarknexsen.com

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From: trace-users-bounces at lists.onebuilding.org
[mailto:trace-users-bounces at lists.onebuilding.org] On Behalf Of Anne Juran
Sent: Friday, June 22, 2012 3:33 PM
To: 'Jim Pagliaro'; trace-users at lists.onebuilding.org
Subject: Re: [Trace-users] air-cooled condensers

 

Select “air cooled unitary” as your plant and assign the rooftop to it under
plant assignments.

 

There is documentation available for Trace under Help à Documentation.  This
should be described in “Getting Started”.  The “User’s Manual” goes more
in-depth into more ‘advanced’ systems.

 

 

From: trace-users-bounces at lists.onebuilding.org
[mailto:trace-users-bounces at lists.onebuilding.org] On Behalf Of Jim Pagliaro
Sent: Friday, June 22, 2012 2:03 PM
To: trace-users at lists.onebuilding.org
Subject: [Trace-users] air-cooled condensers

 

Hi,

 

Can anyone tell me how to model air-cooled condensers that are paired w/
rooftop units?

 

James Pagliaro, CEM, CMVP, LEED AP

Energy Engineer

Celtic Energy, Inc.

701 Hebron Ave

Glastonbury, CT 06033

860-882-1515

www.celticenergy.com

 

Celtic Energy...Energy Solutions for a Sustainable Future

 



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