CBT12iVAV : BACnet Advanced Application Controller

BACnet Controller w/ Actuator

The CBT12iVAV is a native BACnet Advanced Appliation Controller with an integrated airflow sensor and actuator, and point support for single duct and fan-assisted VAV applications.

The CBT12iVAV is a truly open solution for the most demanding of applications, the CBT12iVAV offers unparalleled flexibility and performance on an open platform.


  • Highly Flexible
    With the CBT12iVAV, you can add a demand ventilation application, occupancy sensors, or lighting control to further enhance your energy savings. Unlike other controllers, it can be re-engineered for specific applications over BACnet, providing a fully programmable solution to meet the needs of the most demanding control applications.
  • Smart Energy Control
    The enhanced flexibility of American Auto-Matrix controllers delivers more energy efficient solutions for buildings. With smart energy optimization built-in, your building manager can successfully drive down energy costs.
  • American Auto-Matrix BACnet BAS
    The American Auto-Matrix BACnet range offers reduced costs in terms of training, implementation, rollout and maintenance. Modular, extendible packages along with low installation costs mean a low entry point for building control.


  • BACnet MS/TP Fieldbus
  • Supports the following Configurable BACnet Objects
    AI / BI / BO / AV / BV, Alarms, Trend Logs, and Schedule
  • Integrated Pressure Sensor Can measure differential pressure directly without the need for a separate sensor. The measured value is converted to airflow rate by the controller's strategy
  • 4 Universal Inputs
    Can be configured as analog or digital
  • 2 UniPuts™
    Can be configured as analog / digital outputs or voltage inputs
  • 3 Triac Outputs
  • CBT-STAT dedicated port
    Connection to CBT-STAT intelligent room display does not consume I/O
  • Integrated Actuator
    Points 9 and 10 are dedicated to controlling the integrated actuator
  • Data Security
    Strategy and setpoints backed up in flash
  • 500 Strategy Blocks
  • Up to 6 Trendlogs
  • 1024 Entries per Trendlog


Processor  STM32F103ZTE6 32-bit
Clock Speed 8 Mhz Crystal, 72 Mhz internal processor clock rate
System Memory (soldered to PCB) 512k Flash, 64k SRAM internal to the processor, 1024k SRAM external
Supply Requirements 24 VAC +/- 15% 50/60 Hz
Transformer Rating Up to 55 VA
(up to 12 VA internal power plus up to 43 VA supplied to Triac loads)
Termination PCB-mounted plug terminal connections
Conductor Area Max : AWG 12 (3.09 mm2) Min : AWG 22 (0.355 mm2)
Temperature & Humidity 32° to 122° F (0° to 50° C) ambient 0-90% RH non-condensing
EMC Immunity / Emission EN 55024, 2010 / EN 55002, 2010 Class A
Approvals UL Listed (CDN & US)
UL 916 Energy Management Equipment
File Number E176435
Additional Info
Size 8.3" x 5.1" x 2.3" (210 x 130 x 60 mm)
Enclosure Injection-molded ABS
Mounting direct
Airflow Sensor User rubber hose suitable for a 0.2" (5.1 mm) O.D. nozzle
(724) 733-2000
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