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HVAC Automation

What makes our controllers unlike any other on the market?

Computrols Professional HVAC-DDC controllers are the backbone of large CBAS systems. They are specifically made to meet the challenges of today’s largest and most demanding facilities.

All Professional Computrols HVAC-DDC controllers include:

  • Full internet capability
  • 10Mbps
  • Innovative two board design
  • 4-in-1 points
  • Stand-alone capability
  • Ruggedized protection and construction
  • Jumperless configuration
  • Field upgradable
  • Lifetime warranty

We have four different models of HVAC-DDC controllers. With each model you get the same ruggedly built controller – the only difference between each model is the number of points.

  • 64X: 64 Universal 4-in-1 points; Ethernet; (2) RS-485 serial; (1) RS-232 serial
  • 32X: 32 Universal 4-in-1 points; Ethernet; (2) RS-485 serial; (1) RS-232 serial
  • 16X: 16 Universal 4-in-1 points; Ethernet; (2) RS-485 serial; (1) RS-232 serial
  • 8X: 8 Universal 4-in-1 points; Ethernet; (2) RS-485 serial; (1) RS-232 serial

For VAV applications, Computrols provides the most flexible products available. Our VAVs come with the following standard features:

  • Position Indicator: Provides a visual indication of position.
  • Manual Override: Pushbutton to allow manual positioning on the damper.
  • Convenient Package: Controller and motor assembly mount directly to VAV boxes in one step.
  • Easily Addressable: Two decimal rotary switches (0-9) allow simple addressing – no hex, no binary.
  • Removable Screw Terminals: Allows for quick replacement.
  • Status Indicators: Bright on-board LEDs assist in troubleshooting.
  • Precise Pressure Measurement: 0-4" pressure pickup provides accurate control for sensitive low volume applications.
  • Orientation Independent: Unlike many VAV controllers, our controller and pressure pickup can be mounted in any orientation without loss of accuracy.
  • Multiple Actuator Support: Add an optional damper actuator using either analog or binary outputs.
  • Flexible Sensor Capability: Supports 10K Type III thermistors or a selection of digital display wall stats.

We manufacture four kinds of electronic VAV controllers

  • VAV-AP: VAV with actuator and pressure pickup - the VAV-AP provides both air flow control and measurement for our most complete VAV solution.
  • VAV-P: VAV with pressure pickup - the VAV-P provides a conveniently small package when you need airflow measurement, but are controlling air flow through external means.
  • VAV-X: VAV with no actuator or pressure pickup - the VAV-X, our smallest VAV solution, is used when direct air flow measurement and control are not required.
  • VAV-A: VAV with actuator - the VAV-A is the perfect solution when you want to control the space temperature by adjusting air flow, or when the air flow cannot be measured directly.
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