AHR 2014 - New York
Booth #759
Jan 21 - Jan 23

Made in the USA

200-3 Series
Electronic VAV Flow Controller

The 200-3 Series electronic Flow Control is a multiple purpose flow actuator for variable air volume (VAV) air distribution systems. The 200-3 is capable of precise air flow and temperature regulation within the space being served by the terminal unit.

The 200-3 Series Flow Controls can provide pressure independent control (with thermostat input), constant volume, or constant pressure regulation. The unique "flow through sensor" provides flow or pressure regulation over the entire flow or pressure range.

The pressure independent controller compares the flow signal with the electronic thermostat signal and meters the appropriate volume of air to the space, regardless of terminal (damper inlet) pressure. This control function is referred to as "Pressure Independent VAV Control".

Flow Control Logic

•   Damper override “open or closed” is featured on all 200-3 Series flow controls.

•   Field adjustable min. and max. flow limits on the flow controller or thermostat.

•  Plug-in interface connector.

Flow Sensor

•  Integral part of 200-3 Series flow control assembly.

•  Responds to airflow from 0 to 4000 ft./min.

•  Averages flow from velocity pressure pickup.

Damper Actuator

•  Directly coupled to damper shaft.

•  Selectable 45, 60 or 90 degree stroke either clockwise (CW) or counterclockwise (CCW).

•  24 Volt AC motor.

200-3 Series Calibration Curve (Velocity vs. Velocity Volts)

Copyright © 2012 Hoffman Controls Corp

HCC 2013.04.14