I've read multiple places that EnergyPlus has a default limit of 50 coils per HVAC loop, but this limit can be increased (I believe in the .IDD file). Can anyone share exactly where this limit can be increased/removed?
I'm assuming this will impact run time; are there other significant stability or performance issues to be aware of?
Thanks for the insight.
Certain IDD objects have extensible fields that have artificial limits. The ones that come to my mind as pertinent are
There might be others that I forgot, but that will probably get you going.
@Kyle Benne is the OpenStudio IDD contained in a separate file from EnergyPlus? Is this also editable?
Yes OpenStudio has a separate IDD supporting the OpenStudio Model, but it is not editable in the same way as the EnergyPlus IDD, because information in the OpenStudio IDD is compiled into the C++ source code. That said the limits mentioned in this topic should not apply to the OpenStudio Model. It would not be until you actually try to run a simulation with EnergyPlus that these limits would come into play.
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You can find here how to adjust idd file to lift the 50 coils per loop limit.