I have been playing around with the minimum and maximum outdoor air parameters but it does not seem to have any effect. How can I model an air loop that suplies conditioned air and does not have any returns or recirculation? I was tried adding the Always On Discrete schedule but it does not seem to work.

I have been playing around with the minimum and maximum outdoor air parameters but it does not seem to have any effect. How can I model an air loop that suplies conditioned air and does not have any returns or recirculation? I was tried adding the Always On Discrete schedule but it does not seem to work.