Variable Frequency Drive
A Variable Frequency Drive (VFD) is a device used in HVAC systems to control the speed and power of an electric motor. By adjusting the frequency and voltage supplied to the motor, the VFD allows the motor to run at varying speeds instead of being either fully on or off. This not only improves energy efficiency by using only the amount of power needed for the specific task but also reduces wear and tear on the motor and other components, extending the lifespan of the equipment.

