[EnergyPlus_Support] Re: Non-Zone equipment and Boiler in series

["colotupper" <tupper@xxxxxxxxxxxx>]

I searched the input files and made sure there were no typos - i 
think the error was that I was mixing demand-side components with 
supply-side ones (I thought a boiler could be on the demand side as 
well), and for some reason it didn't reconognize that as the error.  
I never got an errors mentioning invalid equipment configurations - 
just the node connections.  And I went through and cut and pasted my 
node names in their respective places to make sure they were typed 
exactly the same.


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
<mjwitte@g...> wrote:
> The "unknown" node errors usually indicate a typo somewhere.  The 
component 
> type, component name, inlet node and outlet node must match 
exactly in both the 
> BRANCH object and the compoment object.  Search your input file 
for the node 
> names listed in the errors and it should lead you to where the 
problem is.
> 
> However, if I understand the description below, it sounds like 
this simulation 
> is mixing demand-side components (DOMESTIC HOT WATER and radiant 
hydronic) with 
> supply-side components (boiler).  This will not work.  Did this 
generate any 
> other error messages such as "invalid equipment type"?
> 
> Mike
> 
> 
> On 8 Mar 2005, at 0:02, colotupper wrote:
> 
> > 
> > 
> > I am trying to run the following setup, but am getting some node 
> > connection errors:
> > 
> > I have a large water heater on the plant side of a water loop.  
This 
> > water heater is fed by solar collectors and has no backup 
heating 
> > element in it.
> > 
> > On the demand side of my water loop, I have a splitter that does 
to 
> > DHW and a radiant heatings zone.  I would like to have a 
separate 
> > electric boiler for both the DHW and the radiant zone, so I put 
> > these boilers in series on the same branch with the DHW and 
Radiant 
> > system, respectively.
> > 
> > When I did this, I received node connection errors and the types 
of 
> > my some of those nodes are know unknown.  Is there some reason 
why 
> > you can't connect an boiler in series with Non-Zone Equipment 
like 
> > DHW?
> > 
> > Thank you!
> > 
> > Kendra Tupper
> > 
> > 
> > 
> > 
> > 
> > The primary EnergyPlus web site is found at:
> > http://www.energyplus.gov
> > 
> > The group web site is:
> > http://groups.yahoo.com/group/EnergyPlus_Support/
> > 
> > Attachments are not allowed -- please post any files to the 
appropriate folder
> > in the Files area of the Support Web Site.
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> 
> 
> 
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support      
> EnergyPlus-Support@g...





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