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air-to-air HVAC loop

I have created the following airloop, but I get this error: * Severe * IP: IDF line~4297 Object=CONTROLLER:MECHANICALVENTILATION, name=CONTROLLER MECHANICAL VENTILATION 1, Required Field=[Zone 1 Name] was blank. How and where can I fix that? I have checked some other posts about this issue, and things like design days and design specification outdoor air seems to be fine.

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