[Bldg-sim] Supply temperature reset in ASHRAE baseline

[yizhao1 at vt.edu]

Mitch,
Thank you. Yes, the air handler has a heating coil. I also input HOT DECK MAX
LEAVING TEMP (95F), zone entering max supply temp (92), and reheat delta T
(40).
The other input for "heating control and reset" are all in grey except the
avalability schedule". Don't know the reason.

Ying


Quoting Mitchell Dec <mdec at glumac.com>:

> 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
>
> _______________________________________________
> Bldg-sim mailing list
> http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to
> BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG
>
>
>