Intake Still Needed With Complete Ac?

[shortnWide]

Hello to all.
I just started upgrading to AC splits and wanted to know if fresh air intakes are still needed if AC is now exchanging air?

Thanks, SnW.

 

[Nish]

No intakes not needed with ac

 

[Fred Flintstoned]

You will need to augment CO2 though. The plants will use the ambient CO2 quickly. Your power consumption for the Ac should be less since you can run higher temps with CO2 injection.
Fred

 

[shortnWide]

I'm running an LTL Element 3 controller with CO2 injection. I just didn't know about the intake blower still being a necessity.