Interactive control system for an HVAC system

• US 8,550,368 B2
• Filed: 09/22/2006
• Issued: 10/08/2013
• Est. Priority Date: 02/23/2005
• Status: Active Grant

• Current Assignee: Copeland Comfort Control LP (Emerson Electric Company)
• Original Assignee: Emerson Electric Company
• Inventors: Butler, William P., Garozzo, James P.
• Primary Examiner(s): Jules, Frantz F.
• Assistant Examiner(s): ABDUR RAHIM, AZIM
• Application Number:
  US11/526,268
• Publication Number:
  US 20070012052A1
• Time in Patent Office: 2,573 Days
• Field of Search: 236/1.C, 236/1.E, 236/91.F, 165/207, 621/80, 621/83
• US Class Current: 236/1.E
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/52 Indication arrangements, e.g. displays
• CPC Class Codes: F24F 11/54 using one central controller connected to several sub-controllers
• CPC Class Codes: F24F 11/63 Electronic processing
• CPC Class Codes: F24F 11/65 for selecting an operating mode
• CPC Class Codes: F25B 2600/025 by controlling speed
• CPC Class Codes: F25B 2600/111 of condenser fans
• CPC Class Codes: F25B 2700/151 of the compressor motor
• CPC Class Codes: F25B 2700/2104 of an indoor room or compartment
• CPC Class Codes: F25B 2700/2106 of fresh outdoor air
• CPC Class Codes: F25B 2700/21152 at the discharge side of the compressor
• CPC Class Codes: F25B 49/02 for compression type machines, plants or systems
• CPC Class Codes: G05D 23/1904 variable in time
• CPC Class Codes: Y02B 30/70 Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

An interactive system for controlling the operation of an HVAC system is provide that comprises a thermostat for initiating the operation of the HVAC system in either a full capacity mode of operation or at least one reduced capacity mode of operation, and a controller for an outside condenser unit having a condenser fan motor and a compressor motor, the controller being capable of operating the compressor in a full capacity mode and at least one reduced capacity mode. The system also comprises a controller for an indoor blower unit having a blower fan motor, the controller being capable of operating the blower fan motor in a full capacity mode an at least one reduced capacity mode. The system further includes a communication means for transmitting information between the outside condenser unit controller and at least the indoor blower controller, where the information relates to the operation of the indoor blower and the outdoor condenser unit. The indoor blower controller responsively controls the operation of the blower fan motor in a full capacity mode or a reduced capacity mode based on the information received from the outdoor unit controller, and the outdoor unit controller responsively controls the operation of the compressor in a full capacity mode or a reduced capacity mode based on the information received from the indoor blower controller.

Claims

1. An interactive system for controlling the operation of a climate control system, the interactive system comprising:

a two-wire network for permitting communication between one or more controllers;

a thermostat controller, an air conditioner compressor controller, and at least a heating or ventilation apparatus controller for controlling the operation of a heating or a ventilation apparatus, the controllers being connected to each other only through each controller'"'"'s individual connection to the two-wire network such that each controller sends signals directly to another controller without being transmitted through any other controller, where each of the controllers are capable of transmitting data signals that include information identifying a specific destination of the thermostat controller, the air conditioner compressor controller or the heating or ventilation apparatus controller that each data signal is intended for;

wherein the heating or ventilation apparatus controller is configured to receive the data signals that are intended for a controller other than the heating or ventilation apparatus controller, which include information about the operation of at least one of several components in the climate control system that are not controlled by the heating or ventilation apparatus controller, and in response to which the heating or ventilation apparatus controller is capable of modifying the operation of at least one component that is controlled by the heating or ventilation apparatus controller in response to the information.

2. The interactive system of claim 1 wherein the data signals are intended for the air conditioner compressor controller, and the heating or a ventilation apparatus controller is configured to modify the operation of an air circulator blower in response to receiving the data signals.

3. The interactive system of claim 1 wherein the heating or ventilation apparatus controller is capable of modifying the operating capacity of an air circulator blower in response to receiving the data signal intended for the thermostat controller that includes information about the operating capacity of one of the several components in the climate control system.

4. The interactive system of claim 3 wherein the information indicates the compressor is only capable of operating at one of a high capacity or a reduced capacity mode of operation, and the heating or ventilation apparatus controller responsively operates the air circulator blower at a capacity level that corresponds to the high capacity or reduced capacity mode of operation of the compressor.

5. The interactive system of claim 3 wherein the information indicates the air conditioner compressor is only capable of operating intermittently, and the heating or ventilation apparatus controller responsively operates the air circulator blower intermittently to correspond to the intermittent compressor operation.

6. The interactive system of claim 2 further comprising a sensor individually connected to the two-wire network such that the sensor sends signals directly to another controller without being transmitted through any other controller, wherein the heating or ventilation apparatus controller is capable of modifying the operating capacity of the air circulator blower in response to receiving the data signals transmitted by a sensor that is intended for the thermostat controller which includes information about a sensed parameter that is out of range.

7. The interactive system of claim 6 wherein the sensor is a carbon monoxide sensor, and the sensed parameter is the presence of carbon monoxide gas that is greater than a harmful level of carbon monoxide gas.

8. The interactive system of claim 6 wherein the sensor is a pressure sensor and the sensed parameter is a sensed combustion air pressure that is above a value indicative of an inadequate level of combustion airflow to a heating or ventilation apparatus.

9. The interactive system of claim 1 wherein the heating or ventilation apparatus controller is an air handler controller that is capable of modifying the operating capacity of an air circulator blower in response to receiving the data signals that are intended for the thermostat controller which includes information about a reduced operating capacity of a heating or ventilation apparatus.