Johnson Controls VFD66FAA-2 Variable Frequency Drive

The VFD66 Series Condenser Fan Speed Controls regulate the speed of three-phase condenser fan motors in refrigeration and HVAC systems. The VFD66 controls regulate condenser fan motor speed by varying the frequency and voltage of the power supplied to the motor. The VFD66 controls use input signals from various devices to adjust fan speed and optimize condenser head pressure, especially during low ambient conditions. Condenser fan speed may be controlled by pressure or temperature. The VFD66 controls accept input signals from the P35 Pressure Transducer, P499 Electronic Pressure Transducer, System 450™ controls, or any other device that provides a 0 to 5 VDC or 0 to 10 VDC analog input signal.

The VFD66 controls feature a simple interface using a display and keypad. The controls are user friendly and highlight the basicparameters that are required for setup, as outlined in the literature included with the product.

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