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The IO HVAC CONTROLS D-Z1-16 is a two-position zone damper assembly designed for single-zone (Zone 1) HVAC zoning systems. It controls airflow through a duct by moving between fully open and fully closed positions, allowing the zoning controller to direct conditioned air only where it is needed. The assembly measures 16 inches wide by 16 inches tall by 8 inches deep and weighs 10.42 pounds. Licensed HVAC technicians install this damper as part of a ducted split or packaged system retrofit or new installation where zone-by-zone temperature control is required.
This damper assembly is suited for residential and light commercial forced-air zoning applications. It is sized for 16-inch round or equivalent rectangular duct openings and is intended to serve as the primary Zone 1 damper in a multi-zone control layout. Typical installations involve trunk-and-branch duct systems where individual zones must be isolated or opened on demand from a zoning panel or thermostat controller.
Designed as an OEM-style replacement or new-installation component for 16-inch ducted forced-air zoning systems requiring a two-position Zone 1 damper assembly.
Installation should be performed by a licensed HVAC technician familiar with ducted zoning systems and applicable mechanical codes. Shut down the air handler or furnace and disconnect power to the zoning control panel before beginning work. Ensure the damper is oriented correctly with respect to airflow direction as indicated on the assembly body. Seal all duct connections per local mechanical code requirements after securing the damper in place.
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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