Io Hvac Controls VD-08-1212 Vav Ceiling Diffuser 12x12

Product Description

The IO HVAC CONTROLS VD-08-1212 is a variable air volume (VAV) ceiling diffuser designed for commercial and residential HVAC zoning applications. The unit features a 12-inch by 12-inch face with an 8-inch round neck and delivers airflow in a range of 118 to 710 CFM, making it suitable for zones with widely varying load demands. A wall-mounted thermostat control is included, allowing the diffuser to modulate airflow in response to space temperature without a separate zone controller. Licensed HVAC technicians and mechanical contractors install this unit as part of a ducted VAV distribution system.

This diffuser is suited for light commercial and residential applications where ceiling-mounted supply air distribution is required and zone-level airflow control is desired without complex building automation integration. The included wall thermostat provides standalone temperature-based control, simplifying installation in retrofit and new-construction scenarios alike. Typical install locations include office spaces, retail environments, and multi-room residential systems where individual zone comfort control is a priority.

Key Features

• VAV operation with a 118 to 710 CFM airflow range for broad zone load coverage
• 12-inch by 12-inch face plate with 8-inch round neck for standard ceiling grid and duct compatibility
• Includes wall-mounted thermostat for standalone zone temperature control
• Ceiling-mounted supply air diffuser for integrated, low-profile installation
• Modulating airflow reduces energy use compared to constant-volume diffusers

Compatibility

Designed as an OEM-style VAV ceiling diffuser for ducted HVAC systems requiring zone-level airflow control via an 8-inch round neck duct connection.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with VAV air distribution systems and low-voltage thermostat wiring. Shut down the air handling unit and de-energize all associated controls before beginning installation or service. Verify duct sizing and static pressure conditions are within the specified CFM range prior to commissioning. Follow applicable mechanical codes, including ASHRAE and local jurisdiction requirements, for diffuser placement and control wiring.