[Equest-users] Water Source Heat Pumps as Dedicated Outside Air Units

[David Eldridge]

Can you use PVVT, but configured as you would have setup the heat pump?



David

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*David S. Eldridge, Jr.**, P**.**E**.**, LEED AP BD+C, BEMP, BEAP, HBDP*

Project Manager



Direct: (847) 316-9224 | Fax: (847) 328-4550



*Grumman/Butkus Associates* | 820 Davis Street, Suite 300 | Evanston, IL
60201

Energy Efficiency Consultants and Sustainable Design Engineers

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*From:* equest-users-bounces at lists.onebuilding.org [mailto:
equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Jesse Eisenhart
*Sent:* Tuesday, April 03, 2012 3:21 PM
*To:* equest-users at lists.onebuilding.org
*Subject:* Re: [Equest-users] Water Source Heat Pumps as Dedicated Outside
Air Units



I guess I stumped everyone.  J



Jesse Eisenhart

Energy Services | Project Manager



[image: Description: LOGO_for_Email-4]VIRIDIAN|Sustainable Building
Consulting

100 Gamble Road, Little Rock, AR 72211

o: 501.227.0648, f: 501.227.8648

jesse at ViridianUSA.com | www.ViridianUSA.com <http://www.viridianusa.com/>



*From:* equest-users-bounces at lists.onebuilding.org [mailto:
equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Jesse Eisenhart
*Sent:* Tuesday, April 03, 2012 11:07 AM
*To:* equest-users at lists.onebuilding.org
*Subject:* [Equest-users] Water Source Heat Pumps as Dedicated Outside Air
Units



Hello All!



I am having an issue regarding a dedicated outside air unit that takes
advantage of a condensing water loop.



When modeled as a water source heat pump (TYPE = HP), eQUEST gives me an
error saying this system type is not eligible for “OA-FROM-SYSTEM”.



One of my thoughts is to

·         model all the units served by the outside air unit with no fresh
air

·         model the dummy zone with a summation of the fresh air required
by the spaces served



But then that might interfere with a proper simulation of mixed air temps
going into the space.



Thoughts?







***ERROR***********************************************************************

             OSAU                             is not a legal SYSTEM-TYPE to
be

             an OA-FROM-SYSTEM. SZRH/PSZ/RHFS/MZS/PMZS/DDS/VAVS/PVAVS/PVVT

             RHFS/IU/PIU/PTGSD/EVAP-COOL/RESYS2 are allowed.







Jesse Eisenhart

Energy Services | Project Manager



[image: Description: LOGO_for_Email-4]VIRIDIAN|Sustainable Building
Consulting

100 Gamble Road, Little Rock, AR 72211

o: 501.227.0648, f: 501.227.8648

jesse at ViridianUSA.com | www.ViridianUSA.com <http://www.viridianusa.com/>
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