VFD
A VFD, or Variable Frequency Drive, is a motor control device used in HVAC systems to adjust the speed and torque of an electric motor by varying the frequency and voltage of its electrical input. This allows for more precise control of motor operation, improving energy efficiency and system performance. VFDs are commonly used in equipment like fans, pumps, and compressors to match their output to the specific demand, reducing energy waste and wear on the equipment.

