[Equest-users] EER

[Paul Diglio]

James:

If you are modeling to 90.1-2007 Appendix G, then you need to breakout the fan 
energy, so you cannot set it to 0 as suggested.  See G3.1.2.1.

Paul Diglio





________________________________
From: Nick Caton <ncaton at smithboucher.com>
To: Kelsey VanTassel <KVanTassel at sustaineng.com>; James Hurley 
<JHurley at kohlerronan.com>; equest-users at lists.onebuilding.org
Sent: Wed, March 2, 2011 4:39:41 PM
Subject: Re: [Equest-users] EER

 
James,
Kelsey’s right – in detailed mode such efficiency measures entered in wizard 
mode get split into fan energy (kW/CFM) and heating (EIR/HIR) & cooling (EIR) 
efficiencies.  If entering values for heating/cooling efficiency – pay mind to 
whether fan energy is included in your EER figures (it usually is), and follow 
Kelsey’s advice to zero out the fan energy if so.  

 
If you’re not in detailed yet, heating and cooling efficiencies are handled most 
simply using Wizard Screen 3 of ##:
 
~Nick
 
NICK CATON, E.I.T.
PROJECT ENGINEER
Smith & Boucher Engineers
25501 west valley parkway
olathe ks 66061
direct 913 344.0036
fax 913 345.0617
www.smithboucher.com
 
From:equest-users-bounces at lists.onebuilding.org 
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Kelsey 
VanTassel
Sent: Wednesday, March 02, 2011 3:28 PM
To: James Hurley; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] EER
 
You assign the cooling EIR (inverse of COP) under system>cooling>unitary power. 
Technically, you should define the efficiency of the compressor separately from 
the fan power, otherwise eQUEST will double-count the fan energy. If you use an 
overall system EER, then you should set the fan power (kW/cfm) to zero.
 
Furnace efficiency (heat input ratio) is specified under system>heating>unitary 
power.
 
Kelsey Van Tassel
Mechanical Engineer | kvantassel at sustaineng.com
608.836.4488 ext. 20 | Fax: 608.836.4477
 
Sustainable Engineering Group
901 Deming Way, Suite 201
Madison, WI 53717
www.sustaineng.com
 
 
From:equest-users-bounces at lists.onebuilding.org 
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of James Hurley
Sent: Wednesday, March 02, 2011 3:07 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] EER
 
 
 
Where in eQuest can you assign an EER of a DX coil or the Efficiency of a 
furnace?
 
 
 
 
 
 
 
JAMES HURLEY
Kohler Ronan, LLC | www.kohlerronan.com
jhurley at kohlerronan.com
 
1370 Broadway, New York, NY 10018
212.695.2422  F 212.695.2423
 
301 Main Street, Danbury, CT 06810
203.778.1017  F 203.778.1018
 
Please consider the environment before printing this e-mail.
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