insufficient cooling in ITA930

[RomeoEtisJr]

HI Team,

Im trying to model 1x UPFLOW CRAC " liebert PEX model : P3200UC ,where the data hall does not have drop ceiling and just having a concrete ceiling.There is an air duct installed on top of the CRAC that routes to the sides and center of the data hall. any suggeston on how do model this? Im getting sorts of errors, insufficient cooling and downflow crac error even If i have configured the crac to duct to ceiling with perforated ceiling tile.Additional to that ,some racks also hava rear door heat exchangers which I have already modelled, not sure if contributes to the errors im getting Any suggestions? 

Thanks,

Romeo

[gsterling · Accepted solution]

Hello Romeo.

I will re-check with the engineering team, DCO and ITA currently struggle when creating upflow airflow models. Most of the genomes and features in ITA expect download aid which rises up through the floor tiles.

I know I have seen feature requests asking for better support for upflow equipment.

The only method I have seen some upflow models work is to manually set the flow rates on the tiles to set negative pression on the floor times so that heat is drawn down, but that can be hard to manage especially if your room is large.

I suspect we will have to add your name to the feature request.

[RomeoEtisJr]

Thanks Greg!