[Equest-users] sources of undercooling?

[Pasha Korber-Gonzalez]

There are so many things that can contribute to this issue or it could be a
lack of inputs that may be causing some issues.  It depends, on underheating
or undercooling, it depends if all of the hours are happening in one zone
only or spread across all the zones?

You'll need to start by reviewing the SS-F and SS-R reports to get more
insight, then you might want to look at the SS-O reports for the specific
zones that are troubled.  Sometimes it can be affected by schedules, or by
lack of inputs, or equipment sizing ratios, or by specifying CFM's or
equipment capacities, or , or, or....there are so many things that could
affect this.

Suggestions are to do a little engineering analysis on what could be causing
the types of under-conditioning you are getting, (i.e. is it because there
is not enough CFM being supplied to handle the loads?), next you could do
experiements by "turning off" some of the inputs that you have used and see
if one of those is the culprit, or you can ask someone else to look at your
file.  You are welcome to send your .pd2 & .inp files to us and maybe
someone will have some time to take a look at it and help find your issue.

pasha

On Thu, May 6, 2010 at 4:24 PM, Lauren Rosenthal
<Lauren.Rosenthal at arup.com>wrote:

>  All,
>
>
>
> What are some common sources/inputs that could cause unmet load hours,
> especially for cooling hours?
>
>
>
> Almost all of my systems are creating unmet load hours and I’m not sure
> what inputs could be the cause.
>
>
>
> Any suggestions would be greatly appreciated.
>
>
>
> Thanks,
>
>
>
> ____________________________________
>
> Lauren Rosenthal
>
> Mechanical Engineer
>
>
>
> Los Angeles CA
>
>
>
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