CRB Series Flow Fan-Powered VAV Terminal Units

Quiet operation, constant airflow

Keep building occupants comfortable with a quiet, efficient, fan-powered CRB Series VAV terminal unit. This energy-efficient heating and cooling system delivers clean, healthy air while operating at a low, unobtrusive sound level.

  • CFM: 100 to 4,400 CFM
  • AHRI 880- and ETL-certified; labeled to meet industry performance and safety standards
  • Superior FlowStar air measuring probe provides for lower minimum CFM values, which reduce energy costs and noise while maintaining comfort in the zone
Back to Top

Product Overview

Available in a range from 100 to 4,400 CFM, our CRB terminal units offer our commercial clients tremendous flexibility to meet a wide variety of HVAC system design requirements. The series flow fan units are specifically designed for quiet operation and minimize low-frequency (125–250 Hz) sound levels. They’re also designed for greater space comfort. Due to rising interest in indoor air quality, many HVAC system designers are focusing on the effects of particulate contamination within a building’s occupied space—HVAC system noise is often overlooked as a source of occupied space contamination. CRB terminals are specifically designed to prevent obtrusive fan noise from reaching building occupants while providing constant air motion in the space. The VAV terminal recovers heat from lights and core areas to offset heating loads in perimeter zones. Additional heat is available at the terminal unit using electric or hot-water heating coils. Controls are available to energize remote heating devices such as wall fins, fan coils, radiant panels, and roof load plenum unit heaters.
Product Overview



ENVIRO-TEC VAV units maximize building air quality, comfort, and airflow with improved spacing and design flexibility.


Manage air volume efficiently with a VAV terminal unit that offers a range of configurations and heating control options.


Our VAV terminals deliver long-lasting performance through quiet, precise airflow to the occupied space.

Genuine Performance
Genuine Performance

ENVIRO-TEC VAV terminals offer genuine performance advantages through unique configurations, control options, and industry-leading sound data.


  • 120-, 208–230-, and 277-volt, single-phase EC motors
  • Integrated 180-degree flippable high/low-voltage control enclosure with NEC bottom-access doors and additional side-access panels.
  • Integrated vibration-isolating hanger brackets
  • Optional 1-, 2-, 3-, or 4-row hot-water coil with on/off, incremental, or proportional controls
  • Optional 90-degree electrical control enclosure
  • 18 month Limited Warranty
  • Solo/sync motor control technology
  • Optional Metasys BACnet DDC (direct digital control)
  • Optional factory-provided and factory-mounted valve packages.
  • Optional staged or proportional SSR electric heat
  • 120, 208-230, and 277-volt single-phase EC motors

Technical Resources

Document Name
Resource Type
No resource found for selected filter