PsyRhoAirFnPbTdbW: RhoAir (Density of Air) is calculated <= 0
Hello,
I have read through the other posts that are related to this error and am still unable to fix my error. I am brand new to OpenStudio, so I am unsure of how to continue with my simulation. I'm working on the severe errors before I work through the warning errors. The only error I am receiving is below.
* Severe * PsyRhoAirFnPbTdbW: RhoAir (Density of Air) is calculated <= 0 [-0.52081]. * ~~~ * pb =[98088.00], tdb=[-914.65], w=[1.4285632E-002]. * ~~~ * Routine=CorrectZoneHumRat During Warmup, Environment=EAU_CLAIRE ANN CLG .4% CONDNS DB=>MWB, at Simulation time=07/21 00:00 - 01:00
I have natural gas fired furnaces with exhaust fans for each thermal zone, I do not have the furnaces autosized. They are 80% efficiency at 80,000 btu/h. I am just trying to establish a baseline for a small office before working with higher efficiency equipment. When running my simulation I currently have the OS measure surface matching and Energy+ measure add output diagnostics. Am I missing anything to just run a basic energy evaluation on a building?
I'm new so I cannot upload documents as of yet. I can send the error document and photo if needed. Thank you in advance.
Evan
@ecroftFoE instead of uploading documents & photos, you can store them on Google Drive, Dropbox, etc. and then share the URL to those files in your post here on Unmet Hours.
Thanks for that suggestion. Here is the ERR file and HVAC Screenshots
https://www.dropbox.com/s/76yj4jzfg7q...
https://www.dropbox.com/s/d1dmebed2px...
https://www.dropbox.com/s/0bzl1eik2gk...
https://www.dropbox.com/s/g8gg8hvspjl...