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Variable Air Volume (VAV)
for Iowa, Nebraska & Western Illinois

Precision Airflow Control for Modern Commercial HVAC Systems

Variable Air Volume (VAV) boxes are an essential part of today's commercial HVAC systems, providing individual zone temperature control while improving energy efficiency and occupant comfort. By varying the amount of conditioned air delivered to each space, VAV systems help buildings operate more efficiently than constant-volume systems while maintaining consistent indoor conditions.

VHF Sales proudly represents Tuttle & Bailey, offering a complete line of VAV terminal units and fan-powered terminal units for commercial, institutional, and industrial applications throughout Iowa, Nebraska, Western Illinois, South Dakota, and Wisconsin.

Tuttle & Bailey

What Is a VAV Box?

A Variable Air Volume (VAV) box regulates the amount of conditioned air delivered to an individual zone based on the space's heating or cooling demand. Installed within the duct system, VAV terminal units allow multiple areas of a building to maintain independent temperature control while sharing a central air handling system.

Benefits Include:

  • Individual zone temperature control

  • Reduced energy consumption

  • Improved occupant comfort

  • Lower operating costs

  • Quiet operation

  • Flexible building zoning

  • Compatibility with modern building automation systems (BAS)

  • Simplified future building renovations

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Tuttle & Bailey
VAV Terminal Units

Tuttle & Bailey manufactures a comprehensive line of air terminal units designed to provide precise airflow control across a variety of commercial HVAC applications. Their product offering includes both standard VAV boxes and fan-powered terminal units to meet the needs of virtually any building design.

Available Equipment

  • Single Duct VAV 

  • Dual Duct VAV 

  • Round Single Duct VAV

  • Dual Single Duct 

  • Bypass 

  • Fan Powered Series

  • Fan Powered Parallel 

  • Low Profile Fan Powered 

  • Laboratory Exhaust Valves

Why Choose Tuttle & Bailey?

  • Complete line of pressure-independent terminal units

  • Fan-powered and non-fan-powered configurations

  • Factory-mounted control packages available

  • Wide selection of airflow control options

  • Designed for accurate room-by-room temperature control

  • Compatible with today's building automation systems

  • Ideal for commercial, healthcare, education, laboratory, and office applications

Beyond Traditional
VAV Boxes

In addition to terminal units, Tuttle & Bailey also offers electronically controlled VAV diffusers, thermal VAV diffusers, and constant flow regulators for specialized airflow applications. Their extensive air distribution product line allows engineers to coordinate terminal units, diffusers, grilles, and registers from a single manufacturer.

Common Applications

  • Office Buildings

  • Schools & Universities

  • Hospitals & Healthcare Facilities

  • Laboratories

  • Government Buildings

  • Hotels

  • Multi-Family Housing

  • Retail Buildings

  • Manufacturing Facilities

  • Data Centers

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