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The IO HVAC CONTROLS D-Z1-09 is a two-position zone one damper assembly designed for use in residential and light commercial zoned HVAC duct systems. It controls airflow to individual zones by moving between fully open and fully closed positions, enabling independent temperature management across different areas of a building. Measuring 9 inches in width and 9 inches in height, this assembly integrates into round or rectangular duct configurations and is typically installed by licensed HVAC technicians performing zoning system work.
This damper assembly is suited for single-zone control applications in forced-air systems where two-position operation is required. It fits into zone 1 designations within a multi-zone control layout. Typical installation scenarios include new zoning system builds and retrofit projects where existing ductwork is being divided into independently controlled zones. The compact 8-inch depth keeps the assembly manageable within tight plenum and duct spaces.
Designed as an OEM-style replacement or new-installation component for two-position zone damper applications in residential and light commercial forced-air HVAC zoning systems.
Installation should be performed by a licensed HVAC technician familiar with zoned duct systems and low-voltage control wiring. Shut down the air handling unit and de-energize the zone control panel before beginning any damper installation or replacement. Ensure the duct opening dimensions match the damper assembly size before securing the unit in place. Follow applicable local mechanical codes and manufacturer wiring guidelines when connecting the damper actuator to the zone control board.
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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