NB-VAV Range

NB-VAV : BACnet Application Specific Controller

BACnet Application Specific Controller

The NB-VAV family of terminal box digital controllers are designed to function in numerous scenarios that require variable air volume (VAV), constant air volume (CAV), and CO2 measurement, while providing flexible mounting solutions to increase ease of installation.

Using STATbus technology, SBC-STAT room sensors can be connected to the NB-VAV without consuming onboard I/O.

NB-VAVs controllers are BTL listed as a BACnet Application Specific Controllers (B-ASC).

Features

  • BACnet MS/TP protocol over EIA-485
  • 5 Digital Outputs (Relay or Triac)
  • Integrated high-resolution airflow sensor
  • Easy duct scaling K-Factor balance calibration
  • VAV can be balanced by using menu driven capabilities of the SBC-STAT3
  • IAQ variants offer an additional UI to be used for a CO2 sensor for indoor air quality control
  • Onboard Belimo® Actuator (can be either standard actuator or feedback actuator)
  • Flash memory for easy updates
  • Dedicated STATbus input for zone temperature readings
  • Local scheduling capabilities

Changing The Actuator Orientation

The physical layout of the NB-VAV allows users to reverse the orientation of the actuator through the use of an adjustable actuator mounting clip. This unique mechanism provides an easy answer to select retrofit applications involving legacy VAV offerings from American Auto-Matrix. Reversing the actuator orientation involves minimal effort and time from an installer.

Product Models

NB-VAVra NB-VAVrf NB-VAVta NB-VAVtf NB-VAVta-IAQ NB-VAVtf-IAQ NB-VAVr
DO (Triac) 0 0 5 5 5 5 0
DO (Relay) 5 5 0 0 0 0 5
AO 1 1 1 1 1 1 1
UI 2 2 2 2 3 3 2
Airflow Sensor YES YES YES YES YES YES YES
Actuator YES FEEDBACK YES FEEDBACK YES FEEDBACK NO

Specifications

General Specifications
Processor high speed 16-bit processor
Terminations pluggable blocks for inputs, outputs, power and network connection
Baud Rates 9.6, 19.2, 38.4, 57.6, 76.8, 115.2 (kbps)
Input Supply 24 VAC 50/60 Hz 10VA max, 5VA typical, 5A fuse load protection
Transformer NEC Class II
Operating & Storage Conditions
Operating Temperature 32˚ F to 122˚ F (0˚ C to 50˚ C)
Relative Humidity 0 to 90% non-condensing, 40% to 60% recommended
Storage Temperature -40˚ to 151˚ F (-40˚ to 66˚ C)
Dimensions
Dimensions 8.5" x 5.7" x 2.6" in. / 2.04 lbs (not including shipping materials)
Agency Approvals
Complies with CE directives and standards
FCC - Class B Computing Device
UL Listed 916 - Management Equipment, Energy (PAZX)
Contact

Pennsylvania
One Technology Lane
Export, PA 15632
(724) 733-2000 [P]

New Hampshire
25 Sundial Avenue Suite 310W
Manchester, NH 03103
(724) 733-2000 [P]

 

(724) 733-2000
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