[Bldg-sim] How much fan power included in EER / SEER ratings?

[Crockett, Jim]

My understanding (from very unofficial sources found while googling) is
that when units are tested per ARI 210/240 (or 340/360), they are tested
with a clean filter and minimal ductwork (total static of around 0.3").
Thus, you would need to back this minimal amount of energy from the EER,
and then add the actual fan energy.

If you simply use the rated EER with no adjustment, and set your supply
fan energy to zero, (as was recommended in the archives), then you will
significantly underestimate your fan energy.

So, is anyone familiar with the ARI 210/240 or 340/360 tests, and know
how much fan energy is included in these tests?  Also, is the included
fan energy different for packaged units vs. split systems?

Thanks,



Jim




-----Original Message-----
From: RobertWichert [mailto:robert at wichert.org] 
Sent: Wednesday, November 04, 2009 8:54 AM
To: Crockett, Jim; BLDG-SIM
Subject: Re: [Bldg-sim] How much fan power included in EER / SEER
ratings?

Here is my favorite, from the archives.

http://lists.onebuilding.org/htdig.cgi/bldg-sim-onebuilding.org/2007-Oct
ober/005987.html




Crockett, Jim wrote:

> How much fan power is included in the EER / SEER ratings for packaged 
> systems, and split systems? I want to make sure I'm not 
> double-counting fan energy.
>
> Thanks,
>
> Jim Crockett, P.E.
>
> Senior Project Engineer
>
> Energy & Carbon Management
>
> Nexant, Inc.
>
> 4021 S. 700 E., Suite 250
>
> Salt Lake City, Utah 84107
>
> (801) 639-5603 - phone
>
> (801) 266-4786 - fax
>
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-- 
Robert P. Wichert, P.Eng.
+1 916 966 9060
FAX +1 916 966 9068




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