The VFD66 Series Condenser Fan Speed Controls regulate the speed of three-phase condenser fan motors in refrigeration and Heating, Ventilating, and Air Conditioning (HVAC) systems by varying the frequency and voltage of the power supplied to the motor.
 

The VFD66 control accepts an input signal from the P35 Pressure Transducer, P499 Electronic Pressure Transducer, System 350™ pressure or temperature controls, or any other device that provides a 0-5 VDC or 0-10 VDC analog output signal.
 

The application-specific design of the VFD66 control provides a simple interface, which makes the control easy to understand and operate.

Isolated Input Circuitry
Permits application with 0-5 VDC or 0-10 VDC controllers, sensors, transducers, and Johnson Controls® System 350 controls
 

Simultaneous Acceptance of Two Similar Inputs
Allows use on dual refrigeration circuits cooled by a single fan
 

Compact Design
Provides installation ease and flexibility
 

Three-Phase, 208/230, or 400/460 VAC Models
Handle three-phase motors ranging up to 10.6 amperes at 208/230 VAC or 5.5 amperes at 400/460 VAC
 

Few End-User Settings
Provide fast and easy installation and setup