No loads on Ventilation and OutDoorAir:node missing

ladybug-tools
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1

Good morning,

I’m calculating the peak loads of my zone. The way I constructed the model is through a HB Ideal Air, using the HB Room From Solid and applying my custom programme which includes ventilation and infiltration, the HB Room is condicioned, etc. And my HB Ideal Air component i put NoEconomizer and DVC_ = True.

I have a warning in all my rooms:

“XXX IDEAL LOADS AIR SYSTEM OUTDOOR AIR INLET NODE does not appear in a OutdoorAir:NodeList or as an OutdoorAir:node.”

“Adding OutdoorAir:Node=XXX IDEAL LOADS AIR SYSTEM OUTDOOR AIR INLET NODE”
“WARNING GetPurchasedAir: ZoneHVAC:IdealLoadsAirSystem XXX IDEAL LOADS AIR SYSTEM blank field”

zoneHVAC
zoneHVAC1383×774 81.9 KB

On the HTML Results, on the Report: Zone Component Load Summary, on either the table Estimated Cooling (or heating) Peak Load Components, i do get energy from Infiltration but not for Zone Ventilation.

venitlation
venitlation1238×863 32.7 KB

At the same time, i do get outside air, and it’s a good value according to the flow per person and the occupation I set up.

outsideflow
outsideflow541×548 13.3 KB

Does anybody know how to fix this? I do need to create a detailed justification per component.

Thank you very much!

in.idf (1.4 MB)

I attach the IDF File.

2

After much investigation it’s pretty obvious that I needed some post processing with some more outputs to get the Latent load and the load associated with the outside air, and I can now calculate the machines I need for the specific system my building needs.

I just wish the ventilation load could be seen in the Estimated Cooling peak Load components to retrieve the information and process it more easily.