Method, system and temperature control of a heating, ventilation and air conditioning unit

Patent metadata

Field	Value
Publication number	US-12305887-B2
Application number	US-202017247686-A
Country	US
Kind code	B2
Filing date	Dec 21, 2020
Priority date	Jan 20, 2020
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A method of controlling the temperature within a heating apparatus for eliminating or reducing combustion resonance, the method including measuring a temperature of the burner assembly; comparing the measured temperature with a predetermined temperature limit or range; determining whether the measured temperature is greater than a predetermined temperature limit or range; performing a controlled action if the measured temperature is greater than the predetermined temperature limit or range.

First claim

I claim:

1. A system for controlling the temperature of a heating apparatus having an inducer assembly, a blower assembly, the system comprising:
a burner assembly comprising a burner box and operably coupled to at least one of a gas valve assembly, a temperature sensing device, an igniter, and a flame sensing device; and
a control device comprising a processor operably coupled to a memory, the memory configured to store at least one predetermined temperature limit or range, the control device in communication with the temperature sensing device, and at least one of the burner assembly, the inducer assembly, the blower assembly and the gas valve assembly, the processor of the control device configured to:
operate at least one temperature sensing device to measure the temperature of at least one of an interior surface of the burner box and an exterior surface of the burner box;
receive the temperature measurement from the at least one temperature sensing device;
compare the temperature measurement to the at least one predetermined temperature limit or range and determine whether the measured temperature is greater than the at least one predetermined temperature limit or range; and
perform at least one controlled action if the measured temperature is greater than the at least one predetermined temperature limit or range, wherein the at least one controlled action comprises operating the inducer assembly of the heating apparatus for a period of time.

2. The system of claim 1 wherein the at least one controlled action comprises at least one of initiating, terminating and adjusting the operation of, at least one of the blower assembly, the inducer assembly, the gas valve assembly and the igniter.

3. The system of claim 1 , wherein the temperature sensing device is a thermistor.

4. The system of claim 1 , wherein the heating apparatus comprises a furnace.

5. A control device for a heating apparatus, the heating apparatus including a temperature sensing device operably coupled to an outer burner box for measuring at least one of an interior or exterior temperature of a burner box assembly, the control device comprising:
a memory configured to store at least one predetermined temperature limit or range;
a processor operably coupled to the memory, wherein the processor is configured to:
receive a temperature measurement from the temperature sensing device;
compare the measured temperature from the temperature sensing device to the at least one predetermined temperature limit or range; and
operate in at least one operational mode based at least in part on the difference between the measured temperature and the at least one predetermined temperature limit or range, wherein the at least one operational mode comprises operating an inducer assembly of the heating apparatus for a period of time when the measured temperature is greater than the at least one predetermined temperature limit or range.

6. The control device of claim 5 , wherein the at least one operational mode comprises operating a blower assembly of the heating apparatus for a period of time when the measured temperature is greater than the at least one predetermined temperature limit or range.

7. The control device of claim 5 , wherein the at least one operational mode comprises at least one of initiating, terminating and adjusting the amount of fuel delivered by a gas valve assembly when the measured temperature is greater than at least one predetermined temperature limit or range.

8. The control device of claim 5 , wherein the at least one operational mode comprises at least one of initiating, terminating and adjusting an ignition sequence when the measured temperature is greater than at least one predetermined temperature limit or range.

9. The control device of claim 8 , wherein the heating apparatus comprises a furnace.

10. A method of controlling the temperature within a heating apparatus for reducing or eliminating combustion resonance, the heating apparatus having an inducer assembly, a blower assembly, and a burner assembly, the method comprising:
storing, via a memory at least one predetermined temperature limit or range;
measuring, with a temperature sensing device operably coupled to an outer burner box of the burner assembly a temperature of at least one of an interior surface of the burner box of the burner assembly and an exterior surface of the burner box;
comparing, via a processor operably coupled to the memory, the measured temperature of the burner box in the heating apparatus with the at least one predetermined temperature limit or range;
determining, via the processor, whether the measured temperature of the burner box in the heating apparatus is greater than the at least one predetermined temperature limit or range; and
performing, via the processor, a controlled action if the measured temperature of the burner box in the heating apparatus is greater than the at least one predetermined temperature limit or range, wherein the controlled action includes operating the inducer assembly of the heating apparatus for a period of time.

11. The method of claim 10 , wherein the controlled action includes at least one of initiating, terminating and adjusting one or more of the burner assembly, the inducer assembly, and the blower assembly.

12. The method of claim 11 , wherein the controlled action further includes at least one of initiating, terminating and adjusting a gas valve assembly.

13. The method of claim 11 , wherein the controlled action further includes at least one of initiating, terminating and adjusting an ignition sequence.

Assignees

• Carrier Corp

Inventors

• King David R

Classifications

• F24H15/31

  of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves · CPC title

• F24H15/429

  for selecting operation modes · CPC title

• F24H15/281

  Input from user · CPC title

• F24H15/176

  Improving or maintaining comfort of users · CPC title

• F24H15/25

  Temperature of the heat-generating means in the heater · CPC title