Single and Dual Duct VAV Controllers SimplyVAV

Description 

The SimplyVAV series of controllers are an easy and unique approach to operating a wide variety of VAV terminal units. The integrated actuators, internal airflow sensors, and wide variety of application programs make these BACnet Application Specific Controllers ideal for either new or retrofit installations. 

Easy to install Just mount the controller, wire it to a 24 volt transformer, and then connect airflow and temperature sensors. A SimplyVAV controller automatically detects sensors as they are connected without special programming or software tools. 

Simple, menu-driven setup The controllers feature simple, menu-driven setup choices. No special programming skills or software tools are required to choose applications, enter setpoints, set network addressing, and balance airflow. All options can be set by using only an STE-8001 Digital Sensor, which can be installed as the permanent room sensor or connected temporarily as a technician’s service tool. 

New or retrofit applications SimplyVAV controllers are ideal for new installations or upgrades of older, less efficient controllers. 

• Staged, modulated, floating, or time-proportional reheat 

• Series or parallel fan control 

• Single or dual duct application 

Native BACnet All models are BACnet Application Specific Controllers that are ready to connect to a BACnet MS/TP network. Device instance, MAC address, and baud rate are set from an STE-8001 Digital Sensor without special software. 

Easy system integration For SimplyVAV installations that are part of a BACnet building automation system, the controllers provide system diagnostic indicators. Through the MS/TP network, the controllers signal demands for higher static duct pressure, cooler or warmer supply air, and when to start air handling units.

Specifications

Inputs and outputs All inputs and outputs for SimplyVAV controllers are set up at the factory and do not require field programming.

Inputs 

• Sensors are automatically detected 

• Inputs accept industry-standard 10K ohm thermistor sensors 

• Input overvoltage protection up to 24 volts AC, continuous 

• 12-bit analog-to-digital conversion

Triac outputs 

• Optically isolated triac output 

• Maximum switching 24 volts AC at 1.0 ampere for each output

• Maximum for controller is 3.0 amperes 

Analog outputs

• Short-circuit protected 

• Output voltage 0–10 volts DC

• 30 mA per output, 30 mA total for all analog outputs 

• 12-bit digital-to-analog conversion

Specifications

Air flow sensor features 

CMOS differential pressure 0-2 inches of water (0-500 Pa) measurement range. Internally linearized and temperature compensated. 

• Configured as BACnet analog input object 

• Span accuracy 4.5% of reading 

• Zero point accuracy 0.0008 in. H2O/0.2 Pa at 25° C

• Barbed connections for 1/4 inch FR tubing

Actuator features

All SimplyVAV controllers include an integrated actuator.

Shaft size 

Mounts directly on 3/8 to 5/8 inch (9.5 to 16 mm) round or 3/8 to 7/16 inch (9.5 to 11 mm) square damper shafts.

Operating Sequences 

SimplyVAV models are supplied with the following factory-included programs. 

BAC-8001 

Model BAC-8001 is supplied with inputs, outputs, and sequences of operation for the following functions. 

• Single-duct heating and cooling VAV

• Automatic heating/cooling changeover including morning warmup 

• Occupancy setback—requires STE-8201 

• System diagnostic indicators 

• Airflow balancing 

BAC-8005 and BAC-8205 

Models BAC-8005 and BAC-8205 are supplied with inputs, outputs, and sequences of operation for the following functions. 

• Single-duct heating and cooling VAV

• Modulating, floating, time proportional, and staged reheat 

• Series and parallel fan control 

• Automatic heating/cooling changeover including morning warmup 

• Discharge air temperature limiting 

• Occupancy setback—requires 

STE-8201 

• Actuator position feedback for true damper positioning (BAC-8205 only) 

• System diagnostic indicators 

• Airflow balancing 

BAC-8007 Model BAC-8007 is supplied with inputs, outputs, and sequences of operation for the following functions. 

• Dual-duct VAV heating and cooling 

• Occupancy setback—requires STE-8201 

• System diagnostic indicators 

• Airflow balancing 

• Secondary damper control—requires TSP-8001 BACnet communication 

• Integrated, peer-to-peer BACnet MS/TP network communications. 

• Network speed from 9600 to 76,800 baud 

• Meets or exceeds ANSI/ASHRAE BACnet Standard 135-2008 for Application Specific Controllers.

Installation

Regulatory 

• UL 916 Energy Management Equipment 

• BACnet Testing Laboratories listed as Application Specific Controller (B-ASC)

• CE compliant

• SASO PCP Registration KSA R-103263 

• FCC Class B, Part 15, Subpart B and complies with Canadian ICES-003 Class B 

• UL 864 Non-dedicated Smoke Control (BAC-8205 only)

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 

(1) This device may not cause harmful interference, and 

(2) this device must accept any interference received, including interference that may cause undesired operation.

Accessories

Airflow sensors

For VAV boxes without flow pickups, order one of the following airflow sensors.

SimplyVAV digital sensors

SimplyVAV discrete temperature sensors

Dual-duct actuator

Ordering information