Automated Adjustment HVAC Motor Controller Call Interface and Methods and Apparatus for Same
AssigneeEvolution Controls Inc.
InventorsDavid Lee Haessig, Ronald Sai Kit Yip, Roger Hort
Life of this patent
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Abstract
A method and apparatus for a controller and multi-speed interface (“MSI”) in a heating, ventilating, and air-conditioning (“HVAC”) systems to set each call by loading an adjustment profile into the controller. This controller, interface, and process is faster and more accurate than making manual adjustments and allows an equipment manufacturer or HVAC system installer to set many HVAC devices such as variable speed motors to exactly the same control signal value.
Claims22
1- A controller in heating, ventilating, and air-conditioning (HVAC) systems comprising:
- a power connection;
- an analog output for connecting to a HVAC device;
- an analog input for receiving an analog signal with an analog input value from a HVAC control device;
- a plurality of call connections for connecting to the HVAC control device, wherein one of the plurality of call connections receives one of a plurality of calls from the HVAC control device;
- an interface for transferring a digital adjustment profile from an external source, wherein the digital adjustment profile comprises a plurality of adjustable control signal values and wherein each one of the plurality of adjustable control signal values is associated with one of the plurality of calls from the HVAC control device;
- a plurality of manual control signal adjusters for manually adjusting the plurality of adjustable control signal values;
- a non-volatile memory for storing the digital adjustment profile;
- a microcontroller connected to the non-volatile memory;
- and
- wherein the microcontroller monitors the plurality of call connections for one of the plurality of calls from the HVAC control device and outputs one of the plurality of adjustable control signal values to the HVAC device.
2- The controller of claim 1 wherein the one of the plurality of adjustable control signal values output to the HVAC device is adjusted by the one of the plurality of manual control signal adjusters.
3- The controller of claim 1 wherein the plurality of manual control signal adjusters are disabled and the one of the plurality of adjustable control signal values output to the HVAC device is not adjusted by the one of the plurality of manual control signal adjusters.
4- The controller of claim 1 wherein the controller further comprises a jumper for resetting the plurality of adjustable control signal values to the digital adjustment profile stored on the non-volatile memory.
5- The controller of claim 1 wherein the HVAC external control device is a thermostat.
6- The controller of claim 1 wherein the non-volatile memory is integrated with the microcontroller.
7- The controller of claim 1 wherein the HVAC device is a motor.
8- The controller of claim 7 wherein the motor is a variable speed motor.
9- The controller of claim 8 wherein the one of the plurality of adjustable control signal values output to the variable speed motor is for setting a speed of the variable speed motor.
10- The controller of claim 1 wherein the power connection comprises a 24 Volt power connection.
11- The controller of claim 1 wherein the plurality of call connections comprises four call connections.
12- The controller of claim 1 wherein the one of the plurality of adjustable control signal values output to the HVAC device is set by the analog input value from the HVAC control device.
13- A motor controller in heating, ventilating, and air-conditioning (HVAC) systems comprising:
- a 24 Volt power connection;
- an analog output for connecting to a motor;
- an analog input for receiving an analog signal with an analog input value from a HVAC control device;
- a plurality of call connections for connecting to the HVAC control device, wherein one of the plurality of call connections receives one of a plurality of calls from the HVAC control device;
- an interface for transferring a digital adjustment profile from an external source, wherein the digital adjustment profile comprises a plurality of adjustable control signal values and wherein each one of the plurality of adjustable control signal values is associated with one of the plurality of calls from the HVAC control device;
- a plurality of manual control signal adjusters for manually adjusting the plurality of adjustable control signal values;
- a non-volatile memory for storing the digital adjustment profile;
- a microcontroller connected to the non-volatile memory;
- and
- wherein the microcontroller monitors the plurality of call connections for one of the plurality of calls from the HVAC control device and outputs one of the plurality of adjustable control signal values to the motor.
14- The motor controller of claim 13 wherein the controller further comprises a jumper for resetting the plurality of adjustable control signal values to the digital adjustment profile stored on the non-volatile memory.
15- The controller of claim 13 wherein the plurality of call connections comprises four call connections.
16- The controller of claim 13 wherein the motor is a variable speed motor.
17- The controller of claim 16 wherein the one of the plurality of adjustable control signal values output to the variable speed motor is for setting a speed of the variable speed motor.
18- The controller of claim 13 wherein the one of the plurality of adjustable control signal values output to the motor is set by the analog input value from a HVAC control device.
19- The controller of claim 13 wherein the HVAC external control device is a thermostat.
20- The controller of claim 13 wherein the one of the plurality of adjustable control signal values output to the motor is adjusted by the one of the plurality of manual control signal adjusters.
21- The controller of claim 13 wherein the plurality of manual control signal adjusters are disabled and the one of the plurality of adjustable control signal values output to the HVAC device is not adjusted by the one of the plurality of manual control signal adjusters.
22- The controller of claim 13 wherein the non-volatile memory is integrated with the microcontroller.