[Equest-users] Zones with different HVAC systems

[Jing Hong]

Got it! Thank you very much Jones!

Jing

On Wed, Nov 15, 2017 at 1:33 PM Jones, Christopher <
Christopher.r.Jones at wsp.com> wrote:

> SUM system type. The DOE2.2 manuals do not explain the SUM system type
> very well. From the DOE2.1e manual:
>
>
>
> 4. System Descriptions
>
> a. Summation of LOADS to PLANT (SUM)
>
> This is actually not a secondary HVAC distribution system, but rather a
> diagnostic tool, which is used to 1) pass the hourly LOADS program output
> to the PLANT program without simulating a system, 2) adjust the constant
> zone temperatures specified in LOADS, 3) simulate the thermostat schedules
> (but not the equipment), and 4) tabulate energy consumption by ZONE (or
> group of ZONEs). SUM is not a miscellaneous SYSTEM-TYPE for UNCONDITIONED
> zones.
>
>
>
> UNCONDITIONEO ZONEs should be assigned to another SYSTEM.
>
>
>
>
>
>
>
> *Christopher R. Jones*, P.Eng.
>
> <https://maps.google.com/?q=2300+Yonge+Street,+Suite+2300%0D+Toronto,+ON+M4P+1E4+Canada&entry=gmail&source=g>
>
> Technical Specialist
>
> Sustainability & Energy
>
>
>
> T +1 416-644-0252
>
>
>
> 2300 Yonge Street, Suite 2300
> <https://maps.google.com/?q=2300+Yonge+Street,+Suite+2300%0D+Toronto,+ON+M4P+1E4+Canada&entry=gmail&source=g>
>
> Toronto, ON M4P 1E4 Canada
> <https://maps.google.com/?q=2300+Yonge+Street,+Suite+2300%0D+Toronto,+ON+M4P+1E4+Canada&entry=gmail&source=g>
>
> wsp.com
>
>
>
>
>
> *Please consider the environment before printing...*
>
>
>
>
>
> *From:* Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] *On
> Behalf Of *Jing Hong via Equest-users
> *Sent:* Wednesday, November 15, 2017 2:13 PM
> *To:* equest-users at lists.onebuilding.org
> *Subject:* [Equest-users] Zones with different HVAC systems
>
>
>
> Dear All,
>
>
>
> I have a building with more than one kind HVAC system. I have the first
> floor with VAV system, and the second floor only has ventilation fans
> running. So I made all the zones on Second Floor unconditioned, and choose
> SUM as air-side HVAC system for second floor. However, the Space Cool of no
> VAV for second floor is even higher than that of the whole VAV, which does
> not make sense to me.
>
> Do you know how the eQuest calculate Space Cool? Should The VAV energy
> consumption be Space Cool+Vent. Fans shown on the simulation output?
>
> Thank you,
>
> Jing
>
>
>
> --
>
> PhD Candidate, LEED AP BD+C
>
>
>
> School of Architecture and Urban Planning
>
> University of Wisconsin-Milwaukee
>
>
>
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-- 
PhD Candidate, LEED AP BD+C

School of Architecture and Urban Planning
University of Wisconsin-Milwaukee
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