[Equest-users] Using VRF as EEM

[John Aulbach]

 Hi Mark:
I myself have just started to delve into VRF in DOE-2.3. Since this is a SYSTEM change, I believe you will need to do a separate run for VRF. You cannot do this as a straight Parametric run.
Your zoning maybe slightly different as well.
John R. Aulbach, PE
    On Monday, May 4, 2020, 09:29:41 AM PDT, Mark Stout via Equest-users <equest-users at lists.onebuilding.org> wrote:  
 
 Hello,
I'm modeling a church that has a ~5000 SF sanctuary with 36' vaulted ceilings, that has an additional attached two story shell ~24' that holds offices and two conference rooms on floor one and apartments on floor two, that attaches to the original sanctuary (now a common room) with 26' vaulted ceiling and an attached kitchen and a separate two-story shell ~24' used as classrooms.  Both the offices, apartments, and classrooms use electric baseboard heat,  The conference rooms have a 80K BTU gas furnace.  There are two two-stage 80K BTU furnaces which look to be configured to run as a three stage system.  There are no plans, but it is presumed to heat the ~5,000 sanctuary.  All existing ducts, save the sanctuary, are wrapped with asbestos.  There is no cooling.
They want to add solar and are looking to reduce their energy use first.  For all areas except maybe the sanctuary I'm looking to replace them with ductless mini-splits (VRF) and if it pencils out, the sanctuary, which is currently ducted in the crawlspace.
I can't figure out how to model the mini-splits in place of the gas furnaces.  Further, since it's not self-evident, will eQUEST model this correctly?

-- 
Kind Regards,
Mark Stout, President
HERS I & II, BPI BA, MFBA, RESNET HERSLighting & Mechanical Acceptance Testing CALGreen Inspector/Plans Examiner

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