Patent ID: 8487562

Claim:
A method for configuring an electric motor to rotate a blower and to determine a proper rotation direction of the blower, said method comprising: storing, in the electric motor, an expected value for at least one of a torque applied to rotate the blower at a predefined speed and an expected speed of rotation of the blower obtained by applying a predefined level of torque, wherein the expected value corresponds to rotation of the blower in the proper direction; configuring the electric motor to rotate in accordance with predefined criteria, the predefined criteria including one of the predefined speed and the predefined level of torque; configuring the electric motor to measure an operating value, the operating value including at least one of an actual speed of rotation of the blower and an actual torque applied by the electric motor; and configuring the electric motor to compare the operating value to the expected value to determine if a direction of rotation of the electric motor corresponds to the proper rotation direction of the blower and determine that the direction of rotation of the electric motor does not correspond to the proper rotation direction of the blower when the actual speed of rotation of the blower obtained by applying the predefined level of torque is higher than the expected speed of rotation of the blower.