Won’t lowering the voltage of the fan motors cause the motors to overheat?
Lowering the voltage on a compressor motor, or any motor driving a fixed load, will cause the motor to draw excess current and overheat. But, lowering the voltage on a motor with a variable load, such as a fan, will not cause the motor to draw more current, This is because, as the motor power is reduced, the motor turns slower, and the slower rotation of the fan reduces the load which the motor must drive. Thus the motor does not draw more current. Tests in our motor laboratory confirm that operating the motor at a lower voltage does not cause the motor to draw more current or overheat. In fact, when the Frigitek slows the motors down, they produce less heat than at full speed. This is one of the savings provided by the Frigitek.
