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Minimum air flow per zone floor area

asked 2015-08-18 11:15:30 -0500

updated 2017-05-17 12:47:58 -0500

I am confused by Cooling Minimum Air Flow per Zone Floor Area in OS1.7.0.

In the "Thermal Zones" tab, I click the "Cooling Sizing Parameters" section and input 0.4 ft3/min.ft2 for the "Cooling Minimum Air Flow per Zone Floor Area". However, when I click the "HVAC Systems" tab and check the thermal zone connecting to reheat box, it shows 24ft/min for "Cooling Minimum Air Flow per Zone Floor Area" in the OS:Sizing:Zone section. It seems 24ft/min is used for calculation. Did I do something wrong in the "Thermal Zones" tab?

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answered 2015-08-18 11:58:04 -0500

Looks like you've found an issue, which I've filed here. The grid view on the thermal zones tab has an incorrect SI to IP conversion.

Until this gets fixed, the IP number you see in the inspector on the HVAC Systems tab is the number that will be put into the IDF and used during the simulation. You can also switch to SI units and use either the grid view on the Thermal Zones tab or the inspector on the HVAC systems tab.

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Asked: 2015-08-18 11:15:30 -0500

Seen: 197 times

Last updated: Aug 18 '15