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I am modelling a 2 different DOAS systems for multiple Air-side Systems for Compliance analysis. I have assigned 0A-FROM-SYSTEM to the AHU with default MIN-OUTSIDE-AIR value (which is none), as I want the program to calculate the air requirement. I have default inputs at the zone level as well. I am getting a warning with

"SYSTEM XX has zero outside air for design calculations"

Should I input the MIN-OUTSIDE-AIR value or zone level Outside air inputs? Otherwise, can someone give me how do I need to model DOAS in EQuest 3.64?

Thanks, Tanvi

I am modelling a 2 different DOAS systems for multiple Air-side Systems for Compliance analysis. I have assigned 0A-FROM-SYSTEM OA-FROM-SYSTEM to the AHU with default MIN-OUTSIDE-AIR value (which is none), as I want the program to calculate the air requirement. I have default inputs at the zone level as well. I am getting a warning with

"SYSTEM XX has zero outside air for design calculations"

Should I input the MIN-OUTSIDE-AIR value or zone level Outside air inputs? Otherwise, can someone give me how do I need to model DOAS in EQuest 3.64?

Thanks, Tanvi