Blower motor for hvac systems
AssigneeEmerson Electric Co.
InventorArthur E. Woodward
Life of this patent
Estimating the term…
Abstract
A blower motor assembly having a variable speed motor that is suitable for replacing a PSC motor in a residential HVAC (heating, ventilation, and air conditioning) system. The blower motor assembly includes a variable speed motor and motor controller; a first power input for receiving a plurality of AC power signals from a control device for use in determining an operating parameter for the motor; and a second power input for receiving AC power from an AC power source for powering the motor controller even when no AC power signals are received by the first power input.
Claims20
A blower motor assembly comprising:
- a variable speed motor and motor controller;
- a first power input for receiving a plurality of AC power signals from a control device;
- and
- a second power input for receiving AC power from an AC power source for powering the motor controller even when no AC power signals are received by the first power input.
A blower motor assembly comprising:
- a variable speed motor and motor controller;
- a first power input coupled with the motor controller and comprising at least first, second, and third power connections for receiving at least three AC power signals from a control device;
- and
- a second power input for receiving AC power from an AC power source for powering the motor controller even when no AC power signals are received by the first power input.
A method of replacing a permanent split capacitor motor with a variable speed motor, the method comprising:
- removing the permanent split capacitor motor;
- connecting speed/tap selection wires from a furnace control board to a first power input on the variable speed motor;
- and
- connecting an AC power line to a second power input on the variable speed motor for powering the variable speed motor independently of the furnace control board.
Dependencies are inferred from the claim text.