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The IO HVAC CONTROLS vd-10-sf-sd is a 2 x 2 foot surface mount slave diffuser designed for residential HVAC air distribution systems. It features a 10-inch neck and mounts flush to a standard 24 x 24 inch ceiling grid opening. This rectangular diffuser operates as a slave unit, meaning it works in tandem with a primary powered diffuser to balance airflow across a zone without requiring its own actuator or controller. Licensed HVAC technicians and mechanical contractors install this unit during new construction or retrofit projects where multi-diffuser zoning layouts are required.
This diffuser is suited for residential applications where balanced air distribution across multiple ceiling outlets is needed. It installs into a 24 x 24 inch surface mount position and connects to a primary master diffuser in a coordinated zoning setup. The rectangular form factor fits standard drop-ceiling and surface-mounted ceiling configurations common in residential buildings, making it a practical choice for single-family homes, condominiums, and similar light-residential construction.
Designed as an OEM-style replacement or new-installation slave diffuser for residential HVAC zoning systems using surface mount 24 x 24 inch ceiling diffuser configurations with a 10-inch round neck connection.
Installation should be performed by a licensed HVAC technician familiar with residential air distribution and zoning systems. Power down the air handler and any associated zone control equipment before beginning duct or diffuser work. Verify that the existing duct stub-out matches the 10-inch neck diameter before securing the unit. Follow all applicable local mechanical codes and manufacturer pairing guidelines when connecting this slave diffuser to its master unit.
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