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From 90.1 Appendix G, it says"Systems serving laboratory spaces shall reduce the exhaust and makeup air volume during unoccupied periods to the largest of 50% of zone peak air flow, the minimum outdoor air flow rate, or the air flow rate required to comply with applicable codes or accreditation standards. "

How to model the 50% peak air flow in the Openstudio ? I can set up a Max fraction OA schedule in the outdoor air controller, but I don't think that's code's intent. I have baseline system 5, which has no damper control in the terminal unit.

Any one knows how to do this in OS or energyplus ?

Thank you

From 90.1 Appendix G, it says"Systems serving laboratory spaces shall reduce the exhaust and makeup air volume during unoccupied periods to the largest of 50% of zone peak air flow, the minimum outdoor air flow rate, or the air flow rate required to comply with applicable codes or accreditation standards. "

How to model the 50% peak air flow in the Openstudio ? I can set up a Max fraction OA schedule in the outdoor air controller, but I don't think that's code's intent. I have baseline system 5, which has no damper control in the terminal unit.

Any one knows how to do this in OS or energyplus ?

From 90.1 Appendix G, it says"Systems serving laboratory spaces shall reduce the exhaust and makeup air volume during unoccupied periods to the largest of 50% of zone peak air flow, the minimum outdoor air flow rate, or the air flow rate required to comply with applicable codes or accreditation standards. "

How to model the 50% peak air flow in the Openstudio ? I can set up a Max fraction OA schedule in the outdoor air controller, but I don't think that's code's intent. I have baseline system 5, which has no damper control in the terminal unit.

Any one knows how to do this in OS or energyplus ?