No. There are also single systems with a controller to open and close dampers in the duct work to control which zone(s) are getting airflow (based on a thermostat in each zone). The better systems have multi-speed or variable speed compressors plus variable speed air handlers. How do I know this? I had such a system (Carrier Infinity) with 4 zones in a previous home . See post #2. It appears that a couple of the posters to this thread have replaced their original system with a zoned system with dampers.
Quote:
Originally Posted by DonnaNi4os
Unless you have two condensers you do not have two zones. Therefore whatever your thermostat is set to is the same throughout your home.
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