"INTELLIZONE2 SPECIFICATION CATALOG When utilized properly, the ECM motor will provide precise airflow control for a given space. The ECM will operate on up to six/eight pre-configured airflow levels depending on the load requirements of the house. All airflow is setup for the 5 or 7 Series in the AID Tool. If the IntelliZone2 is controlling: 5 Series single or dual-capacity unit, there will be 6 total airflow levels, two airflow levels for low-speed compressor operation and two airflow levels for high- speed compressor operation and one for continuous blower and one for auxiliary heat. 7Seriesvariablespeedunit,therewillbe8totalairflow levels, one airflow level continuous blower and auxiliary heat settings and six airflow levels for the variable speed compressor ranging from 25, 40, 55, 70, 85, and 100% airflow depending upon the zone call. By varying the airflow level per the needed output capacity of the heat pump, bypass is eliminated and the correct amount of air is delivered to the house. Consult the 5 and 7 Series technical literature for more information on airflow setup." From the literature, and what our experience is, it seems to be able of doing exactly what you say it cannot do.