[Bldg-sim] Supply temperature reset in ASHRAE baseline

yizhao1 at vt.edu yizhao1 at vt.edu
Tue Mar 4 13:49:13 PST 2008


If the Cool control of "reset" is selected for cooling, the heat control will be
in grey.
Only if cool control of "warmest" is selected, the heat control will be lit up.

> Ying,
>
> If you have a heating coil in the air handler one needs to inputm the HOT
> DECK MAX LEAVING TEMP (HEAT SET-T)- and this enable the Heat Control input.
> The HOT DECK MAX LEAVING TEMP (HEAT SET-T) should be set to the primary air
> temperature leaving the air handler. If the HEAT SET-T air temperature is not
> specified, the primary air temperature will be the mixed air temperature,
> which could result in a significant increase in reheat energy depending on
> the climate.
> Hope this helps,
> Mitch
>
>
> Mitchell J. Dec
> Senior Energy Analyst
> LEED® Accredited Professional
>
> 320 SW Washington, Suite 200
> Portland, OR 97204-2640
> T.  503.227.5280  F. 503.274.7674
> Direct: 503.345.6283
>
> Thinking. Inside the building.
> http://www.glumac.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 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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