公开(公告)号：US20230313989A1

公开(公告)日：2023-10-05

申请号：US17707829

申请日：2022-03-29

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Rakesh Mathew ,  Andrew Michael Boyd

IPC: F23N5/20 ,  F23N5/02

CPC classification number: F23N5/203 ,  F23N5/022 ,  F23N2225/12 ,  F23N2227/02 ,  F23N2241/02 ,  F23N2237/00 ,  F23N2223/08

Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes a control system configured to initiate an operating cycle of a furnace of the HVAC system at an initial operating stage in response to a call for heating, monitor a duration of time associated with the operating cycle of the furnace to satisfy the call for heating, adjust the initial operating stage to provide an adjusted initial operating stage of the furnace based on the duration of time, and initiate a subsequent operating cycle of the furnace at the adjusted initial operating stage.

公开(公告)号：US20230014432A1

公开(公告)日：2023-01-19

申请号：US17377066

申请日：2021-07-15

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Rakesh Mathew ,  Lester Dale Sherrow ,  Daniel William Davis, II ,  Bennie Dale Hoyt

IPC: F28F9/00

Abstract: A baffle for a furnace of a heating, ventilation, and air conditioning (HVAC) system includes a mounting flange configured to be secured to a housing of the furnace. The baffle also includes a first panel extending from the mounting flange into an air flow path extending through the furnace and a second panel extending from the first panel toward the housing.

公开(公告)号：US20220381480A1

公开(公告)日：2022-12-01

申请号：US17752525

申请日：2022-05-24

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Andrew M. Boyd ,  Tom R. Tasker ,  Rakesh Mathew

IPC: F24H9/20 ,  F24H3/00 ,  F24H15/208 ,  F24H15/128 ,  F24H15/305

Abstract: A variable capacity furnace includes a variable capacity fuel valve configured to supply a fuel to a burner, where the variable capacity fuel valve is configured to be controlled to a target setting over a range of settings to modulate an amount or flow rate of the fuel supplied to the burner. The variable capacity furnace also includes a control assembly having processing circuitry and memory circuitry. The memory circuitry includes instructions stored thereon that, when executed by the processing circuitry, cause the processing circuitry to execute a control algorithm to determine, based on whether an indoor temperature is progressing toward a set point over time and based on a temperature differential between the set point and the indoor temperature, a target setting of the variable capacity fuel valve. The instructions also cause the processing circuitry to control the variable capacity fuel valve to the target setting.

公开(公告)号：US12007184B2

公开(公告)日：2024-06-11

申请号：US17377066

申请日：2021-07-15

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Rakesh Mathew ,  Lester Dale Sherrow ,  Daniel William Davis, II ,  Bennie Dale Hoyt

IPC: F24H9/00 ,  F28F9/00 ,  F24H9/02 ,  F24H9/06

CPC classification number: F28F9/005 ,  F24H9/02 ,  F24H9/06 ,  F28F2235/00

Abstract: A baffle for a furnace of a heating, ventilation, and air conditioning (HVAC) system includes a mounting flange configured to be secured to a housing of the furnace. The baffle also includes a first panel extending from the mounting flange into an air flow path extending through the furnace and a second panel extending from the first panel toward the housing.

公开(公告)号：US11971187B2

公开(公告)日：2024-04-30

申请号：US17365814

申请日：2021-07-01

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Rakesh Mathew

IPC: F24F11/65 ,  F23N1/00 ,  F24D5/04 ,  F24F11/80 ,  G05B15/02 ,  F24F110/10

CPC classification number: F24F11/65 ,  F23N1/005 ,  F24D5/04 ,  F24F11/80 ,  G05B15/02 ,  F23N2235/16 ,  F23N2241/02 ,  F24F2110/10 ,  G05B2219/2614

Abstract: A system includes a modulating furnace and control circuitry. The control circuitry is configured to receive a call for heating associated with a quick heat cycle. In response to the call for heating, the control circuitry is also configured to operate the modulating furnace in a quick heat operating mode for a threshold time period. Subsequent to the threshold time period, the control circuitry is also configured to operate the modulating furnace in a modulating heat operating mode.

公开(公告)号：US20240035707A1

公开(公告)日：2024-02-01

申请号：US18227190

申请日：2023-07-27

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Andrew Michael Boyd ,  Rakesh Mathew ,  Damion Marcel Taylor Cave

IPC: F24H15/421 ,  F24D19/10 ,  F24H15/36 ,  F24H15/204

CPC classification number: F24H15/421 ,  F24D19/1084 ,  F24H15/36 ,  F24H15/204

Abstract: A furnace system for a heating, ventilation, and air conditioning (HVAC) system includes a furnace controller configured to determine a rolling average furnace run time of the furnace system based on a plurality of previous run cycles of the furnace system. The furnace controller is configured to segment the rolling average furnace run time into a plurality of operational time periods, wherein each operational time period is associated with a distinct fire rate of a plurality of distinct fire rates the furnace system. The furnace controller is also configured to operate the furnace system to sequentially implement the plurality of distinct fire rates associated with the plurality of operational time periods.

公开(公告)号：US20230235922A1

公开(公告)日：2023-07-27

申请号：US18101990

申请日：2023-01-26

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Andrew M. Boyd ,  Madhuka M. Jayarathne ,  Rakesh Mathew ,  Rohan Bhuse

IPC: F24H15/315 ,  F24H3/02 ,  F24H15/345 ,  F24H15/20

CPC classification number: F24H15/315 ,  F24H3/025 ,  F24H15/345 ,  F24H15/20

Abstract: A furnace for a heating, ventilation, and air conditioning (HVAC) system includes a fuel valve configured to regulate an amount of fuel supplied to a burner of the furnace, a draft inducer blower configured to draw an air flow into the burner, and a controller configured to determine a target operating parameter value of the furnace, determine an air to fuel ratio corresponding to the target operating parameter value, and control operation of the fuel valve, the draft inducer blower, or both based on the air to fuel ratio.

公开(公告)号：US20230003412A1

公开(公告)日：2023-01-05

申请号：US17365814

申请日：2021-07-01

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Rakesh Mathew

IPC: F24F11/65 ,  F23N1/00 ,  F24D5/04 ,  G05B15/02

Abstract: A system includes a modulating furnace and control circuitry. The control circuitry is configured to receive a call for heating associated with a quick heat cycle. In response to the call for heating, the control circuitry is also configured to operate the modulating furnace in a quick heat operating mode for a threshold time period. Subsequent to the threshold time period, the control circuitry is also configured to operate the modulating furnace in a modulating heat operating mode.