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    Systems and methods for defrost control
    5.
    发明授权
    Systems and methods for defrost control 有权

    公开(公告)号：US10571174B2

    公开(公告)日：2020-02-25

    申请号：US15417182

    申请日：2017-01-26

    Applicant: Johnson Controls Technology Company

    Inventor： Shawn A. Hern ,  Brian D. Rigg ,  Elton D. Ray ,  Jedidiah O. Bentz ,  Theresa N. Gillette ,  Tom R. Tasker ,  Shaun B. Atchison ,  Tyler McCune ,  Aneek M. Noor

    IPC: F25B47/02

    Abstract: A system for heating a building via refrigerant includes a coil temperature sensor, an ambient temperature sensor, and a controller. The controller includes a processing circuit configured to record a system operating parameter and a control step of a control process before performing a sacrificial defrost cycle. The processing circuit is configured to cause the system to perform the sacrificial defrost cycle and operate the system at predefined system operating parameters other than the recorded system operating parameters. The system is configured to cause the system to operate at the recorded system operating parameters and generate calibration data in response to the sacrificial defrost cycle ending. The processing circuit is configured to cause the control process to operate at the recorded control step and cause the system to perform a defrost cycle based on the calibration data, the coil temperature, and the ambient temperature.

    REMOTE CLEAR OF AN HVAC SYSTEM
    6.
    发明申请
    REMOTE CLEAR OF AN HVAC SYSTEM 审中-公开

    公开(公告)号：US20190265662A1

    公开(公告)日：2019-08-29

    申请号：US15920139

    申请日：2018-03-13

    Applicant: Johnson Controls Technology Company

    Inventor： Shaun B. Atchison ,  Brian D. Rigg

    IPC: G05B19/042 ,  F24F11/32 ,  F24F11/52 ,  F24F11/57 ,  F24F11/58 ,  F24F11/64 ,  H04L29/06

    Abstract: The present disclosure is directed to a system for a heating, ventilating, and air conditioning (HVAC) system includes a control system of the HVAC system, a user device configured to be communicatively coupled to the control system and receive feedback indicative of a lock out event of the HVAC system, where the lock out event is configured to effectuate at least a partial shutdown of the HVAC system, and a dealer device configured to receive authorization from the user device to remotely clear the lock out event of the HVAC system, where the dealer device is configured to remotely clear the lock out event upon receiving the authorization from the user device.

    FAULT CONDITION MANAGEMENT FOR HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) SYSTEMS
    7.
    发明申请
    FAULT CONDITION MANAGEMENT FOR HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) SYSTEMS 审中-公开

    公开(公告)号：US20190264939A1

    公开(公告)日：2019-08-29

    申请号：US15920728

    申请日：2018-03-14

    Applicant: Johnson Controls Technology Company

    Inventor： Shaun B. Atchison ,  Noel A. Grajeda-Trevizo

    IPC: F24F11/38 ,  F24F11/52 ,  F24F11/56 ,  F24F11/64 ,  F24F11/65 ,  F24F11/88 ,  G05B15/02

    Abstract: Presently disclosed is a fault condition management system of a heating, ventilation, and air conditioning (HVAC) system. The system includes a controller having a user interface with a display and a lockout status indicator. The controller is configured to determine that the HVAC system is in a plurality of fault conditions and to individually present, on the display of the user interface, a respective fault code corresponding to each respective fault condition of the plurality of fault conditions in a repeating loop. Each respective fault code is presented for a fault code presentation duration followed by a rest duration. The controller is configured to control illumination of the lockout status indicator during the fault code presentation duration of each respective fault code to indicate a respective lockout status of the corresponding respective fault condition.

    MULTI-ZONE SYSTEM WITH SOFTWARE UPDATE FEATURES
    8.
    发明申请
    MULTI-ZONE SYSTEM WITH SOFTWARE UPDATE FEATURES 审中-公开

    公开(公告)号：US20180267794A1

    公开(公告)日：2018-09-20

    申请号：US15983645

    申请日：2018-05-18

    Applicant: Johnson Controls Technology Company

    Inventor： Shaun B. Atchison ,  Theresa N. Gillette ,  Jonathan A. Burns

    IPC: G06F8/656 ,  H04L29/08 ,  F24F11/58 ,  F24F11/49

    Abstract: A system for performing software updates for building devices of a building includes a thermostat associated with one of multiple zones of the building and a controller. The controller includes a processing circuit configured to store thermostat software in a memory device of the processing circuit, the stored software being software for the thermostat and determine, by communicating with the thermostat, whether thermostat software run on the thermostat is newer or older than the thermostat software stored in the memory device. The processing circuit is configured to update the thermostat software run on the thermostat with the thermostat software stored in the memory device in response to a determination that the thermostat software run on the thermostat is older than the thermostat software stored in the memory device and operate building equipment to control an environmental condition of the building.

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