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The IO HVAC CONTROLS VD-RK-06-SD is a VAV slave diffuser retrofit kit designed for use with 6-inch neck diffuser openings. It allows technicians to convert or upgrade existing ceiling diffusers to variable air volume (VAV) operation without replacing the full diffuser assembly. The kit includes mounting screws for a complete installation. At 4.5 pounds, it is sized for straightforward ceiling-level service and is intended for installation by licensed HVAC technicians working on commercial or light-commercial VAV air distribution systems.
This retrofit kit is suited for VAV slave diffuser applications where a 6-inch neck connection is present. It is commonly installed during system upgrades, VAV zone expansions, or diffuser control retrofits in commercial office, retail, or institutional spaces. The slave configuration means this unit takes direction from a VAV controller or master zone device rather than operating independently. Installation is typically performed as part of a broader VAV system commissioning or retrofit project.
Designed as an OEM-style retrofit replacement for VAV slave diffuser applications requiring a 6-inch neck connection. Confirm neck diameter and VAV controller compatibility before installation.
Installation should be performed by a licensed HVAC technician familiar with VAV air distribution systems. De-energize all associated VAV controllers and air handling equipment before beginning work. Follow applicable mechanical codes and the VAV system manufacturer guidelines for slave device wiring and commissioning. Verify that the existing ceiling diffuser neck measures 6 inches before mounting the kit.
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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