[Equest-users] What do reports report?

R B slv3sat at gmail.com
Tue Feb 10 12:06:29 PST 2015

LS-A is for the space or whole building depending on which cooling load
value you are looking at, without the systems. LS-D is for the whole
building. SS-D is for all the systems together. SS-A is for a particular
system. SS-D will include the outdoor air, and the thermostat setting you
are using. If you have only one system in the building, SS-D and SS-A will
be same.

On Tue, Feb 10, 2015 at 1:47 PM, Charles Hoes <charles_hoes at hoes-eng.com>

> I have been attempting to successfully use eQuest for the past year or so
> and am finding it to be an excruciatingly frustrating experience.  It is
> definitely a "quirky" program.
> My latest confusion has to do with the difference between the LS-A, SS-A
> and SS-D reports.  The documentation indicates that you need to go to SS-A
> to results that account for time varying air temperatures.  SS-A reports
> are not described in the Detailed Simulation Reports Summary, nor anywhere
> else that I can find.
> LS-A Space Peak Loads reports:
> Cooling peak = 35.070 KBTU/hr; Heating Peak = -20.826 KBTU/hr.
> SS-A System Loads Summary reports: (not included in Detailed Simulation
> Reports Summary documentation)
> Cooling maximum = 2.684 KBTU/hr; Heating Maximum = -4.275 KBTU/hr
> SS-D Building HVAC Load Summary reports: (not included in Detailed
> Simulation Reports Summary documentation)
> Cooling maximum = 24.81 KBTU/hr; Heating maximum = -28.14 KBTU/hr
> I am wondering what these results could possibly mean.  The order of
> magnitude difference between the LS-A and SS-A reports baffles me. I MIGHT
> be able to understand it for cooling if the SS-A results were ten times as
> high, but I don't understand how the heating could be double.  These values
> don't seem to make sense, but since there is no description of the reports
> there is no way to tell.
> The SS-D report seems to make some sort of sense in relation to the LS-A
> report if the LS-A report is giving "instantaneous" results as if the
> building were at a steady state condition and the SS-D report includes the
> impacts of thermal mass and things like that.  However, since there is no
> documentation on this I am must guessing.
> I am of course being interested in sizing a heating and cooling system for
> the building.  Given these different and unexplained differences in the
> reports I am finding that to be difficult to do.
> Can anyone explain what these reports are telling me and how I might best
> use them as part of the design process?  Right now I just have to pick one
> that "feels" good - but that isn't a very satisfying approach.
> Thanks
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