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Variable Air Volume Modular Assemblies

Variable Air Volume Modular Assemblies (VMAs)

Digital Controllers Tailored for VAV Applications & Measurements

At Johnson Controls, our VMAs are designed to provide the best control for Variable Air Volume (VAV) boxes. With 32-bit processors, our VMA16s and VMA1832s are programmable controllers that can switch between MS/TP and N2 Communications protocols. Featuring a digital pressure sensor and a damper actuator, our VMA16 controllers come in a small package that facilitates quick field installation and efficient use of space. Our VMAs feature a wide variety of network sensor options for measuring zone temperature, duct temperature, zone humidity, carbon dioxide levels and more.

Features and Benefits
  • Patented control algorithms
  • Incremental motor actuator
  • Adaptive tuning
  • More accurate comfort control
  • One-piece "mechatronic" design
  • Easy installation
  • Automated flow testing
  • Thermal environment performance diagnostics
  • Integrated actuator and flow sensor
  • Support for single and dual duct applications
  • Cooling only and cooling with reheat models available
  • True digital control
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Philadelphia, PA, US
When school officials at Central Bucks School District wanted to trim budgets, they insisted that nothing compromise the learning environment. Through a performance contract with Johnson Controls, school officials say they already are saving $1.5-2M in utility costs annually.
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