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RZ VAV-B: Unitary Controller

The RZ VAV controller is a native BACnet, direct digital controllers designed for VAV terminal units. An integrated actuator and the selectable profiles make this an ideal controllers for temperature setback, overrides, proportional reheat and other HVAC sequences. Install these versatile controllers in stand-alone environments or networked to other BACnet devices. As part of a complete intelligent building systems, the RZ VAV-B controllers provide precise monitoring and control of connected points.

- BACnet MS/TP compliant

- Standard VAV control sequences are incorporated to provide pressure independent control of a single-duct VAV unit.

- On-board airflow sensor for use with a single or multi-point differential pressure measuring station or pivot tube.

- Use to control heating, cooling, cooling with heat change-over, cooling with time proportional reheat or three-stage, sequential reheat points.

SPECIFICATIONS

- 3 universal inputs each of which is programmable as an analog, binary or accumulator objects. A fourth input is dedicated to the airflow sensor.

- Standard units of measure

- Pull-up resistors for switch contacts and other un powered equipment. Switch selected none or 10K OHM

- Removable screw terminal block, wire size 12-22 AWG

- 10-bit analog-to-digital conversion

- Pulse counting to 16 Hz

- 0-5 volts DC analog input range

-Overvoltage input protection

- Compatible with RZ KMD-1161 and RZ KMD-1181 NetSensors

APPLICATION PROGRAMS

RZ supplies the RZ VAV-B with programming sequences for four single-duct VAV applications

- Cooling only

- Fan-powered

- 3 Stage heat with reheat

- Proportional reheat

Download Cut Sheet [192KB PDF]