[Equest-users] EER

Nick Caton ncaton at smithboucher.com
Wed Mar 2 13:39:41 PST 2011


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 <http://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 <http://www.kohlerronan.com> 

jhurley at kohlerronan.com <mailto: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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