公开(公告)号：US11644213B2

公开(公告)日：2023-05-09

申请号：US17214260

申请日：2021-03-26

Applicant: Johnson Controls Technology Company

Inventor： Andrew Michael Boyd ,  Theresa Thy Nguyen Gillette ,  D Gamage Methmini Umayangana Maheshwari Sumanasekara ,  Mason Sloan Dewald

IPC: F24F11/65 ,  F24F11/49 ,  F24F110/10

CPC classification number: F24F11/65 ,  F24F11/49 ,  F24F2110/10

Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes secondary control circuitry configured to communicatively couple to primary control circuitry of the HVAC system that is configured to operate the HVAC system in a variable operating mode. The secondary control circuitry is configured to cause operation of the HVAC system in a calibration mode to determine a calibrated target temperature and transmit the calibrated target temperature to the primary control circuitry to enable operation of the HVAC system in the variable operating mode via the primary control circuitry based on the calibrated target temperature.

公开(公告)号：US20200292193A1

公开(公告)日：2020-09-17

申请号：US16591214

申请日：2019-10-02

Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY

Inventor： Madhuka Manuranga Jayarathne ,  Thomas D. Chase ,  Theresa N. Gillette ,  Andrew Michael Boyd

IPC: F24F11/39 ,  B01D46/00

Abstract: A system faults to a return air sensor integrated within a heating, ventilation, and air conditioning (HVAC) unit. The system transmits a signal to a remote sensor. The system determines that a return signal is not received from the remote sensor. The system obtains a temperature reading from the return air sensor. The system determines whether the temperature reading satisfies a temperature setting stored in the memory. In response to determining that the temperature reading does not satisfy the temperature setting, the system enables heating or cooling of the HVAC unit until the temperature setting is satisfied. In response to determining that the temperature reading satisfies the temperature setting, the system disables heating or cooling of the HVAC unit.

公开(公告)号：US11781785B2

公开(公告)日：2023-10-10

申请号：US16569353

申请日：2019-09-12

Applicant: Johnson Controls Technology Company

Inventor： Madhuka Manuranga Jayarathne ,  Andrew Michael Boyd ,  Theresa N. Gillette ,  Thomas D. Chase

IPC: F24D19/10 ,  F24F11/30 ,  F23N3/08

CPC classification number: F24D19/1084 ,  F24F11/30 ,  F23N3/082 ,  F23N2223/08 ,  G05B2219/2614

Abstract: In an aspect, an HVAC system includes an inducer motor to provide combustion airflow, and a pressure sensor to measure an output airflow pressure of the inducer motor. The HVAC system may initiate the inducer motor, and receive a pulse width modulation (PWM) signal from the inducer motor, wherein the PWM signal indicates a PWM signal of the inducer motor corresponding to a predetermined airflow pressure of the inducer motor and measured by the pressure sensor. The HVAC system may compare the PWM signal to a baseline value, and control the inducer motor based on the comparing of the PWM signal to the baseline value. The HVAC system may also generate a status notification of the combustion airflow of the HVAC system in response to the comparing the PWM signal to the baseline value.

公开(公告)号：US11761656B2

公开(公告)日：2023-09-19

申请号：US16591214

申请日：2019-10-02

Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY

Inventor： Madhuka Manuranga Jayarathne ,  Thomas D. Chase ,  Theresa N. Gillette ,  Andrew Michael Boyd

IPC: F24F11/00 ,  F24F11/39 ,  B01D46/00 ,  F24F110/10

CPC classification number: F24F11/39 ,  B01D46/0086 ,  F24F2110/10

Abstract: A system faults to a return air sensor integrated within a heating, ventilation, and air conditioning (HVAC) unit. The system transmits a signal to a remote sensor. The system determines that a return signal is not received from the remote sensor. The system obtains a temperature reading from the return air sensor. The system determines whether the temperature reading satisfies a temperature setting stored in the memory. In response to determining that the temperature reading does not satisfy the temperature setting, the system enables heating or cooling of the HVAC unit until the temperature setting is satisfied. In response to determining that the temperature reading satisfies the temperature setting, the system disables heating or cooling of the HVAC unit.

公开(公告)号：US20220307719A1

公开(公告)日：2022-09-29

申请号：US17214260

申请日：2021-03-26

Applicant: Johnson Controls Technology Company

Inventor： Andrew Michael Boyd ,  Theresa Thy Nguyen Gillette ,  D Gamage Methmini Umayangana Maheshwari Sumanasekara ,  Mason Sloan Dewald

IPC: F24F11/65 ,  F24F11/49

Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes secondary control circuitry configured to communicatively couple to primary control circuitry of the HVAC system that is configured to operate the HVAC system in a variable operating mode. The secondary control circuitry is configured to cause operation of the HVAC system in a calibration mode to determine a calibrated target temperature and transmit the calibrated target temperature to the primary control circuitry to enable operation of the HVAC system in the variable operating mode via the primary control circuitry based on the calibrated target temperature.

公开(公告)号：US11300308B2

公开(公告)日：2022-04-12

申请号：US16837775

申请日：2020-04-01

Applicant: Johnson Controls Technology Company

Inventor： Theresa N. Gillette ,  Andrew Michael Boyd ,  Thomas D. Chase ,  Madhuka Manuranga Jayarathne

IPC: F24F11/30 ,  F24F11/58 ,  F24F11/65 ,  G05B15/02 ,  H04W76/10 ,  F24F11/64 ,  F24F130/10 ,  F24F110/10 ,  F24F110/12

Abstract: A heating, ventilation, or air conditioning (HVAC) system includes a headless thermostat device and an adapter unit. The headless thermostat device includes one or more circuits configured to receive a control input from a user device via a local wireless network and generate a control signal for HVAC equipment based on the control input. The adapter unit includes one or more circuit configured to receive the control signal from the headless thermostat device via the local wireless network and provide the control signal to the HVAC equipment for operation of the HVAC equipment in accordance with the control input.

公开(公告)号：US11965664B2

公开(公告)日：2024-04-23

申请号：US16588611

申请日：2019-09-30

Applicant: Johnson Controls Technology Company

Inventor： Madhuka Manuranga Jayarathne ,  Theresa Thy N. Gillette ,  Andrew Michael Boyd ,  Thomas D. Chase

IPC: F24F11/47 ,  F24F11/52 ,  F24F11/58 ,  F24F11/65 ,  G05B13/02 ,  G05B13/04 ,  G05B15/02 ,  G05B19/042 ,  G05B23/02 ,  F24F140/60

CPC classification number: F24F11/47 ,  F24F11/52 ,  F24F11/58 ,  F24F11/65 ,  G05B13/02 ,  G05B13/04 ,  G05B15/02 ,  G05B19/042 ,  G05B23/0235 ,  F24F2140/60

Abstract: The present disclosure provides systems, apparatuses, and methods for monitoring building efficiency by a heating, ventilation, and air conditioning (HVAC) system. In an aspect, an HVAC unit including a memory and a processor coupled with the memory is disclosed. The processor may be configured to establish a current building efficiency state value of a current run cycle of the HVAC system. The processor may also be configured to determine an building efficiency state deviation value based on a difference between an average building efficiency state value of a set of previous building efficiency state values and the current building efficiency state value. The processor may further be configured to determine whether the building efficiency state deviation value satisfies a building inefficiency threshold. The processor may also be configured to provide an indication including an inefficiency status to a device associated with the HVAC system based on a determination that the current building efficiency state satisfies the building inefficiency threshold.