[Equest-users] Unmet hours crisis

Carol Gardner cmg750 at gmail.com
Tue Mar 9 09:58:23 PST 2010


Rob,

For each PSZ system remove the Heat-Temp-Schedule and Cool-Temp-Schedule
from all zones except your control zone, i.e. set them to default. I also
notice that your throttling range is only 2 degrees which might be what you
have but will also cause unmet hours. This should help.

Carol

On Tue, Mar 9, 2010 at 9:42 AM, Edward Allen <eallen at long.com> wrote:

> Pasha,
>
> Unmet hours are determined based on the thermostat set points for the zone
> and the throttling range.  Make sure that you have the correct thermostat
> set points, throttling ranges, and thermostat types selected for the spaces.
>  These settings need to be compatible with each other and also the zone
> terminal and parent system types.
>
> Good luck,
>
> Edward M. Allen
> Senior Energy Engineer
> LONG Energy Solutions
>
> ________________________________
> From: equest-users-bounces at lists.onebuilding.org [
> equest-users-bounces at lists.onebuilding.org] on behalf of Rob Hudson [
> rdh4176 at gmail.com]
> Sent: Tuesday, March 09, 2010 10:23 AM
> To: Pasha Korber-Gonzalez
> Cc: equest-users at lists.onebuilding.org
> Subject: Re: [Equest-users] Unmet hours crisis
>
> I have unmet hours elsewhere in my model currently, and i'm working on
> lowering them.  This space is 217 Sleeping room and its associated toilet
> room, 217A.  the zone labels are Z-217 and Z-217A and both have
> unconditioned ceiling space above, which has been added in as unconditioned
> space.  The zone is identical to other sleeping rooms, so i can't imagin why
> one would have unmet hours and the others wouldnt.  they are cooling unmet
> hours as well.
>
> On Tue, Mar 9, 2010 at 11:57 AM, Pasha Korber-Gonzalez <
> pasha.pkconsulting at gmail.com<mailto:pasha.pkconsulting at gmail.com>> wrote:
> Rob,
>
> if you can attach your .pd2 & .inp files we can look at your sim and try to
> help you.  Are the hour underheating or undercooling in that core zone you
> talk about?
>
> Pasha
>
> On Tue, Mar 9, 2010 at 7:26 AM, Rob Hudson <rdh4176 at gmail.com<mailto:
> rdh4176 at gmail.com>> wrote:
> I am modeling a patient care facility with a relatively simple structure.
>  the design model went well, and i am currently trying to debug the baseline
> model.  the first floor is more administrative space, exam rooms and
> kitchen.  the second and third floors are sleeping spaces that have
> identical features.  I have modeled each space separately in the model, but
> the inputs were kept exactly the same by going into the .inp file and
> cutting and pasting my space and system requirements.  however, i have one
> room in the middle of the second floor that has unmet hours where each other
> one has none.  the thermal loads are exactly the same and i can't figure out
> anything that it could be.  any help or ideas of things to look for would be
> greatly appreciated.
>
> thanks,
>
> --
> Rob Hudson
>
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>
>
>
> --
> Rob Hudson
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