rpm. Dehumidification SelectionNNoottee:: Dehumidification selection procedure is the same for both electric heat (THC) and gas heat (YHC) models. Typical 5 ton THC060E OA Conditions RA conditions 2000 cfm Total Supply Airflow Part load day and raining 75ºF db 800 cfm Outside Air (40%) 68ºF db 63ºF