[Trace-users] air-cooled condensers

[Duncan S. McClellan]

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
dmcclellan at clarknexsen.com<mailto:dmcclellan at clarknexsen.com>
www.clarknexsen.com<http://www.clarknexsen.com%20>

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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> [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<mailto: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<http://www.celticenergy.com>

Celtic Energy...Energy Solutions for a Sustainable Future



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