Io Hvac Controls SC-VDR-08 Round Vav Diffuser 8 Inch Neck

Product Description

The IO HVAC CONTROLS SC-VDR-08 is a round variable air volume (VAV) diffuser designed for use in commercial and residential HVAC distribution systems. It features an 8-inch neck and an 18-inch face, making it suitable for ceiling-mounted supply air applications where both airflow control and aesthetics matter. The diffuser integrates with VAV control systems to modulate airflow based on zone demand. At 16.2 pounds, it is a substantial assembly built for long-term installation in ductwork systems. HVAC technicians and sheet metal contractors are the primary trades that specify and install this unit.

The SC-VDR-08 is intended for use in VAV air distribution applications, typically in light commercial or larger residential builds where zone-by-zone airflow control is required. The 8-inch neck connects directly to standard round duct runs, and the 18-inch face provides broad airflow coverage across the conditioned space. It is suitable for ceiling installations in offices, classrooms, conference rooms, and similar spaces where balanced air distribution and thermal comfort are priorities.

Key Features

• 8-inch neck diameter for connection to standard round ductwork
• 18-inch face diameter for wide-area air distribution coverage
• Variable air volume design supports zone-level airflow modulation
• Substantial 16.2-pound construction for stable ceiling-mounted installation
• Round diffuser profile suits a wide range of ceiling grid and drywall ceiling applications

Compatibility

Designed as an OEM-style VAV round diffuser for ceiling-mounted supply air applications using 8-inch round duct connections in variable air volume HVAC systems.

Installation Notes

Installation should be performed by a licensed HVAC technician or sheet metal contractor familiar with VAV system balancing and duct layout. Shut down the air handling unit and de-energize the VAV controller before mounting or wiring the diffuser assembly. Verify the ceiling structure can support the unit weight before securing. Follow local mechanical codes and SMACNA duct installation standards for airtight connections at the neck.

Technical Specifications

• Neck Diameter: 8 inches
• Face Diameter: 18 inches
• Dimensions (W x H x D): 14.5 x 12.25 x 17.875 inches
• Weight: 16.2 pounds

Standard Information

• Brand: IO HVAC CONTROLS
• Manufacturer Part Number: SC-VDR-08