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Zero "Zone Air Terminal Outdoor Air Volume Flow Rate" on design days

Hello All, Although I've set outdoor air method in DesignSpecification:OutdoorAir and I used it in Controller:MechanicalVentilation, Sizing:Zone, and AIRTERMINAL:SINGLEDUCT:VAV:REHEAT, the Zone Air Terminal Outdoor Air Volume Flow Rate on my design days are zero. I am using autosized hvac calculation. Any insight would be appreciated.

Zero "Zone Air Terminal Outdoor Air Volume Flow Rate" on design days

Hello All, Although I've set outdoor air method in DesignSpecification:OutdoorAir and I used it in Controller:MechanicalVentilation, Sizing:Zone, and AIRTERMINAL:SINGLEDUCT:VAV:REHEAT, the Zone Air Terminal Outdoor Air Volume Flow Rate on my design days are zero. I am using autosized hvac calculation. Any insight would be appreciated.