FIELD CUSTOM FREQUENCY SKIPPING

• US 20140039687A1
• Filed: 08/01/2013
• Published: 02/06/2014
• Est. Priority Date: 08/01/2012
• Status: Abandoned Application

• Current Assignee: Carrier Corporation (Carrier Global Corporation)
• Original Assignee: Carrier Corporation (Carrier Global Corporation)
• Inventors: Mercer, Kevin, Bennett, Dale R., Swilik, Robert C.
• Application Number:
  US13/956,836
• Publication Number:
  US 20140039687A1
• Time in Patent Office: Days
• US Class Current: 700/276
• CPC Class Codes: F24F 11/77 by controlling the speed of ventilators
• CPC Class Codes: F24F 13/24 Means for preventing or suppressing noise
• CPC Class Codes: F24F 2013/245 using resonance
• CPC Class Codes: F24H 9/2064 for air heaters
• CPC Class Codes: F25B 2500/12 Sound
• CPC Class Codes: F25B 2500/13 Vibrations
• CPC Class Codes: F25B 2600/0253 with variable speed
• CPC Class Codes: F25B 49/005 of safety devices F25B49/02 and F25B49/04 take precedence
• CPC Class Codes: G05D 23/19 characterised by the use of electric means G05D23/1393 takes precedence
• CPC Class Codes: Y02B 30/70 Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

A method, system, and control system for operating a HVAC system having one or more variable-speed components is provided. The method includes running the one or more variable-speed components at a first setpoint, and determining that the first setpoint generates a response having an intensity above a threshold. The response includes a vibration, a noise, or a combination thereof. The method further includes logging the first setpoint into a list of setpoints to avoid. The method also includes, in response to determining that the first setpoint generates the response having the intensity above the threshold, adjusting the one or more variable-speed components to a second setpoint.

Claims

1. A method for operating a HVAC system having one or more variable-speed components, the method comprising:

running the one or more variable-speed components at a first setpoint;

determining that the first setpoint generates a response having an intensity above a threshold, the response comprising a vibration, a noise, or a combination thereof;

logging the first setpoint into a list of setpoints to avoid; and

in response to determining that the first setpoint generates the response having the intensity above the threshold, adjusting the one or more variable-speed components to a second setpoint.

2. The method of claim 1, further comprising:

selecting a third setpoint for the one or more variable-speed components;

determining that the third setpoint is in the list of setpoints to avoid;

in response to determining that the third setpoint is in the list of setpoints to avoid, selecting a fourth setpoint by adjusting the third setpoint; and

running the one or more variable-speed components according to the fourth setpoint.

3. The method of claim 1, wherein determining that the first setpoint generates the response having the intensity above the threshold comprises receiving an objection registered by a user on a panel.

4. The method of claim 1, further comprising installing the HVAC system in the field prior to running the HVAC system at the first setpoint.

5. The method of claim 1, further comprising:

scanning a range of setpoints for the one or more variable-speed components;

determining that an objectionable setpoint in the range of setpoints being scanned generates a response having an intensity above the threshold; and

adding the objectionable setpoint to the list of setpoints to avoid.

6. The method of claim 5, wherein determining that the objectionable setpoint produces the response having the intensity above the threshold comprises receiving a setpoint objection from a panel actuated by a user.

7. The method of claim 1, wherein determining that the first setpoint generates the response having the intensity above the threshold comprises detecting the response of the HVAC system using a sound measuring device, a vibration measuring device, or both.

8. The method of claim 1, wherein the one or more variable-speed components comprises a compressor configured to compress a working fluid, wherein adjusting the one or more variable-speed components comprises modulating a speed of the compressor.

9. The method of claim 1, wherein the one or more variable-speed components comprises a fan, blower, or both configured to move air across one or more heat exchangers of the HVAC system, wherein adjusting the one or more variable-speed components comprises modulating a speed of the fan, blower, or both.

10. A control system for an HVAC system, comprising:

a panel comprising an input device configured to register a setpoint objection from a user, wherein in the HVAC system comprises one or more variable-speed components, the one or more variable-speed components being operable at a plurality of setpoints; and

a controller configured to communicate with the panel and at least one of the one or more variable-speed components, the controller being configured to receive an indication of the setpoint objection from the panel and, in response, adjust a speed of at least one of the one or more variable-speed components.

11. The control system of claim 10, wherein the controller comprises a storage device on which a list of setpoints to avoid is stored, wherein the controller is configured to compare a setpoint of the one or more variable-speed components with the list of setpoints to avoid to determine whether to adjust the setpoint.

12. The control system of claim 10, further comprising one or more measuring devices configured to detect vibration, noise, or both in the HVAC system, the one or more measuring devices being coupled to the controller and configured to communicate therewith.

13. The control system of claim 10, wherein the one or more variable-speed components comprises a compressor configured to compress a working fluid, the HVAC system comprising a heat pump, an air conditioner, or both.

14. The control system of claim 10, wherein the one or more variable-speed components comprises a fan, blower, or both configured to move air across one or more heat exchangers.

15. The control system of claim 10, wherein the HVAC system comprises a furnace.

16. A system, comprising:

a processing system comprising a processor; and

a memory system comprising one or more computer-readable media, wherein the one or more computer-readable media contain instructions that, when executed by the processing system, cause the system to perform operations comprising;

running the one or more variable-speed components at a first setpoint;

determining that the first setpoint generates a response having an intensity above a threshold, the response comprising a vibration, a noise, or a combination thereof;

logging the first setpoint into a list of setpoints to avoid; and

in response to determining that the first setpoint generates the response having the intensity above the threshold, adjusting the one or more variable-speed components to a second setpoint.

17. The system of claim 16, wherein determining that the first setpoint generates the response having the intensity above the threshold comprises receiving a setpoint objection from a panel, the setpoint objection being registered by a user.

18. The system of claim 16, wherein determining that the first setpoint generates the response having the intensity above the threshold comprises:

receiving data from one or more measuring devices configured to detect vibration, noise, or both in the HVAC system; and

comparing the data to the threshold, wherein the threshold is predetermined.

19. The system of claim 16, wherein the operations further comprise:

scanning a range of setpoints for the one or more variable-speed components;

determining that an objectionable setpoint in the range of setpoints being scanned produces the response having the intensity above the threshold in the HVAC system; and

adding the objectionable setpoint to the list of setpoints to avoid.

20. The system of claim 16, wherein the one or more variable-speed components comprises a compressor configured to compress a working fluid, a fan configured to move air across an evaporator, a blower configured to move air across a condenser, or a combination thereof, wherein adjusting the speed of the one or more variable-speed components comprises modulating a speed of at least one of the compressor, the fan, and the blower.