Abstract: A thermostat transducer module includes a processor, at least one A/D conversion circuit interfaced to the processor, and at least one output level conversion circuit interfaced to the processor. The processor is configured to receive signals originating at a thermostat through the at least one A/D conversion circuit, analyze the received signals and generate signals based on the analysis for output through the at least one output level conversion circuit for control of a motor.

Abstract: A method for determining a direction of rotation for an electronically commutated motor (ECM) is described. The motor is configured to rotate a blower and the method comprises rotating the blower using the ECM and determining if the resulting blower rotation is indicative of the desired direction of rotation for the blower.

Abstract: An interface for programming a motor control of a motor includes a microcontroller in signal communication with a first signal port and a second signal port, and a solid state relay in signal communication with the microcontroller and the second signal port. The solid state relay includes a control element responsive to first and second signals from the microcontroller for turning on power and for turning off power, respectively, to the motor control, wherein the microcontroller is adapted for sending a programming signal from the computer to the motor control in response to the programming signal being sent within a defined time following the control element turning on power to the motor control.