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The IO HVAC CONTROLS D-Z1-12 is a two-position zone one damper assembly designed for use in residential and light commercial zoned HVAC duct systems. It controls airflow through a single zone by switching between fully open and fully closed positions, allowing a zone control panel to direct conditioned air only where it is needed. The unit measures 12 inches wide by 12 inches high by 8 inches deep and weighs 8.08 pounds. Licensed HVAC technicians typically install and commission this component as part of a multi-zone forced-air system.
This damper assembly is suited for installation in 12-inch round or rectangular duct runs serving a single zone in forced-air heating and cooling systems. It is intended for applications where a zone control panel sends open/close signals to individual dampers based on thermostat demand. Typical install scenarios include residential zoning retrofits and new construction light commercial builds where duct zoning is required for occupant comfort and energy efficiency.
Designed as an OEM-style replacement or new-installation zone damper for 12-inch duct zoning systems compatible with standard two-position zone control panels.
Installation should be performed by a licensed HVAC technician familiar with zoned forced-air systems. Shut down the air handler and de-energize the zone control panel before cutting into ductwork or making low-voltage wiring connections. Secure the damper in the duct run according to the manufacturer's instructions and verify proper open and close travel before restoring power. Follow all applicable local mechanical codes when modifying or extending duct systems.
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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