BACtalk® VAViH-SD™ Controller

The Alerton BACtalk® VAViH-SD™ controller with integrated actuator is a versatile BACnet-compliant controller, providing pressure-independent control of any single-duct variable air volume (VAV) box. It features a built-in airflow sensor, five universal inputs (AIs or BIs) and six binary outputs (BOs). As a native BACnet controller, the VAViH-SD integrates seamlessly with your BACnet system, the VAViH-SD-F includes a filter to reduce dust contamination.

The BACtalk VAViH-SD contains an integral airflow sensor to provide pressure independent operation of the VAV box. Each airflow sensor is factory-calibrated at multiple velocity points. Minimum, maximum, and reheat airflows can be entered either at a Microset wall unit or an operator workstation. A technician can adjust airflow parameters in the field during balancing to compensate for slight variations in box installation and type.

The direct-coupled, brushless actuator is a high-reliability, maintenance-free ON-OFF/floating point control model manufactured by Honeywell. Its universal V-bolt clamp assembly mounts directly to the damper operating shaft.

All control algorithms are factory-loaded into non-volatile flash memory and can be completely field-modified. The VAViH-SD can execute control algorithms independently of other equipment. All calibration, programming, and operator entered setup data is stored in flash memory for further assurance of stable, reliable, and independent operation.

• Economical Comes with 5 inputs, 6 binary outputs
• The separate replaceable actuator enables quicker, less expensive repairs
• Adaptable Pre-loaded, DIP-switch selectable DDC applications for 5 types of VAV box control
• Flexible Left- or right-mountable actuator enables flexible mounting configurations
• Innovative Device addressing and application selection can all be done with common tools for easy installation or replacement
• Attractive Sleek, updated design

• FCC Part 15, Class A
• EN 55022, Class A
• EN 61000-3-2, 61000-3-3, 61000-4-2, 61000-4-3, 61000-4-4, 61000-4-8, 61000-4-6, 61000-4-11