[Bldg-sim] Supply temperature reset in ASHRAE baseline

[Kevin Kyte]

Ok, perhaps I haven't set done that right.  I have cool-control on warmest
with airflow first.  The max and min cooling reset temp represent a 10
degree difference.  The min being the temperature that is the 20 degree
difference supply-air to room-air temp of 55.  Is this in fact not right,
should it be cool-control set to reset?  Do we use a reset-temp or
reset-ratio?  And should we be referencing high and low outdoor temperature
setpoints for this?  This is definitely an issue for me right now because it
represents a swing in energy cost savings of two points.

Kevin Kyte, LEED AP
RobsonWoese, Inc.
(T) 716-636-1800
(F) 716-636-1856
http://robsonwoese.com


-----Original Message-----
From: yizhao1 at vt.edu [mailto:yizhao1 at vt.edu] 
Sent: Friday, February 29, 2008 12:15 PM
To: Kevin Kyte
Subject: RE: [Bldg-sim] Supply temperature reset in ASHRAE baseline

Yes, I did that with coll reset schedule.

Quoting Kevin Kyte <kkyte at robsonwoese.com>:

> So how exactly does one do G.3.1.3.12?  If a cool reset schedule were
setup
> then it would reference supply air to outside air right? Hello?
>
> Kevin Kyte, LEED AP
> RobsonWoese, Inc.
> (T) 716-636-1800
> (F) 716-636-1856
> http://robsonwoese.com
>
> -----Original Message-----
> From: bldg-sim-bounces at lists.onebuilding.org
> [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of
yizhao1 at vt.edu
> Sent: Thursday, February 28, 2008 9:12 PM
> To: Aulbach, John
> Cc: bldg-sim at lists.onebuilding.org
> Subject: Re: [Bldg-sim] Supply temperature reset in ASHRAE baseline
>
>
> The one in the zone  level appear to be for baseboard control.
>
>
> Quoting "Aulbach, John" <jaulbach at nexant.com>:
>
> > Isn't Package VAV a Terminal System? The reheat coil control should on
> > the ZONE Level, not the SYSTEM level.
> >
> > I think..
> >
> > -----Original Message-----
> > From: bldg-sim-bounces at lists.onebuilding.org
> > [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of
> > yizhao1 at vt.edu
> > Sent: Thursday, February 28, 2008 5:00 PM
> > To: bldg-sim at lists.onebuilding.org
> > Subject: [Bldg-sim] Supply temperature reset in ASHRAE baseline
> >
> > Hi -
> > In the baseline, ASHRAE requires a supply air temperature reset for
> > system 5, packaged rooftop VAV w/ reheat (G3.1.3.12). In the air side
> > system level, I can set up a schedule for cool control, but heat control
> > is in grey.
> > Does anyone know how to input the reset in the system? Economizer is
> > inlcuded.
> >
> > Thanks!
> >
> > Ying
> >
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