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The DUROZONE 35229 SMZ-AC is a simple auto changeover zoning system incorporating individual thermostats and zone dampers to provide comfort and economy. It's a first call - first served system; if a zone calls for cooling, heating calls are locked out and the system will satisfy all cooling calls.
The SMZ-AC ensures efficient climate control by prioritizing the first call, whether for heating or cooling, and managing zone dampers accordingly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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