[Equest-users] 7175 Version Crashing on Water-Side HVAC Tab

Tue Sep 3 08:16:04 PDT 2019

Hi Nick,

I ended up having to start from scratch and work directly from the .inp and
making sure it was set up properly. Once it was correct in the .inp it
stopped crashing.

I've never thought of setting up defaults like that. But that would've been
quite helpful since I have a lot of linked systems, and if you try to
change the main system it asks for the same information over and over for
each of the linked systems. Sometimes if you can't enter in the information
it forces you to delete some systems or zones. I was struggling a lot with
that issue with this model too.

Thanks for your help!

Austin

*Austin Selvig *| *Consultant* | *613.552.1753* | *selvig at posteritygroup.ca
<selvig at posteritygroup.ca>*
*43 Eccles St. 2nd Floor, Ottawa, ON* | *posteritygroup.ca
<http://posteritygroup.ca/>*

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On Tue, Aug 27, 2019 at 4:05 PM Nicholas Caton <Nicholas.Caton at se.com>
wrote:

> I haven’t run into that one yet (posting your project may help others to
> replicate/troubleshoot), but I might suggest some stepsthat made the
> “re-definition” of new hydronic air-side systems ‘smoother’ in prior
> version of doe2.
>
>
>
> Start in the water-side tab.  Right click the ‘project’ line at the top of
> the component tree, and create all of the circ loops you’ll be prompted for
> (in setting up a new airside system) first.
>
> For your 4-pipe systems, that’ll include at least one CHW circ loop and
> one hot water circ loop.  You shouldn’t need to define any boilers/chillers
> at this stage.
>
>
>
> Then, before ‘converting’ any airside systems to 4-pipe, navigate (in your
> airside tab) to create a new system from scratch, of type FC.  Move to the
> new systems’ ‘cooling’ tab to set your user default for CHW-LOOP (for this
> system type) to the new CHW loop you’ve defined.  Do the same over on the
> heating tab.
>
>
>
> The last thing I can think of (try this for your first system) would be to
> switch your ‘furnace’ inputs for heating to hot water, before converting to
> the FC system type (if that’s a contextual possibility).  In any case, if
> the above measures do not improve your crash state issue, it will at least
> save you some steps in system conversion/creation down the line once you’ve
> resolved whatever is causing the crash.
>
>
>
> After you do successfully convert your first system, and before you
> simulate, you’ll want to delete the “starter” FC system used to define the
> defaults, and you’ll also want to set up some primary equipment on those
> loops.
>
>
>
>
>
> If none of those steps help… perhaps you’ll want to try jumping into the
> INP to remove EVERYTHING with regard to existing hydronic stuff, then
> re-create from scratch if that allows you to initialize without errors.
>
>
>
> I hope this proves somewhat helpful!
>
>
>
> ~Nick
>
>
>
> [image: cid:image005.png at 01D515A3.47EDD880]
>
> *Nick Caton, P.E., BEMP*
>
>   Senior Energy Engineer
>   Regional Energy Engineering Manager
>
>   Energy and Sustainability Services
>   Energy Performance Contracting
>
> D
> M
> F
> E
>
> 913 . 564 . 6361
>
> 785 . 410 . 3317
>
> 913 . 564 . 6380
>
> *nicholas.caton at se.com <nicholas.caton at se.com>*
>
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>
> [image: cid:image006.png at 01D515A3.47EDD880]
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>
>
>
> *From:* Equest-users <equest-users-bounces at lists.onebuilding.org> *On
> Behalf Of *Austin Selvig via Equest-users
> *Sent:* Tuesday, August 27, 2019 12:54 PM
> *To:* equest-users at lists.onebuilding.org
> *Subject:* [Equest-users] 7175 Version Crashing on Water-Side HVAC Tab
>
>
>
> [External email: Use caution with links and attachments]
> ------------------------------
>
>
>
> Hi All,
>
>
>
> I'm having an issue and I'm wondering if anyone has had this, or if there
> are any fixes. I have a model that used furnaces and DX that I was
> converting to 4-pipe, and it crashes when I add system in the water side
> HVAC tab, and also crashes if I add systems in text editor, and click on
> the tab when I open it. I'm working in the 7175 version and DOE 2.3,
> because I eventually want to make a VRF version of the model.
>
>
>
> Let me know, thanks!
>
>
>
> Austin
>
>
>
> *Austin Selvig *| *Consultant* | *613.552.1753* | *selvig at posteritygroup.ca
> <selvig at posteritygroup.ca>*
> *43 Eccles St. 2nd Floor, Ottawa, ON* | *posteritygroup.ca
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>
>
>
> [image: Image result for posterity group]
>
>
>
> *Summer Hours Alert *-  Starting July 1st until Labour Day Weekend
>
> Posterity Group will be closed on Fridays. Have a great summer!
>
>
>
>
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