公开(公告)号：US20180209703A1

公开(公告)日：2018-07-26

申请号：US15417186

申请日：2017-01-26

Applicant: Johnson Controls Technology Company

Inventor： SHAWN A. HERN ,  BRIAN D. RIGG ,  TOM R. TASKER ,  Elton D. Ray

IPC: F25B41/06

CPC classification number: F25B49/02 ,  F25B13/00 ,  F25B2313/0312 ,  F25B2313/0314 ,  F25B2313/0315 ,  F25B2500/19 ,  F25B2600/01 ,  F25B2600/0253 ,  F25B2600/2513 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2104 ,  F25B2700/2106 ,  F25B2700/21151 ,  F25B2700/21152 ,  G05D23/00 ,  G05D23/1919 ,  Y02B30/741

Abstract: An HVAC system includes, an electronic expansion valve (EEV), and a controller in communication with the EEV. The controller is configured to determine a minimum EEV setpoint position value based on a comparison of a superheat error value to a setpoint error threshold. The controller is further configured to determine a maximum EEV setpoint position value based on a comparison of a second superheat error value to a second setpoint error threshold. The controller is further configured to calculate an average setpoint value based on the maximum EEV setpoint position value and the minimum EEV setpoint position value. The controller is further configured to configure the EEV to a position corresponding to the average setpoint value and operate the EEV for a predetermined amount of time. The controller is further configured to operate the EEV according to a PID algorithm.

公开(公告)号：US20180031266A1

公开(公告)日：2018-02-01

申请号：US15417177

申请日：2017-01-26

Applicant: Johnson Controls Technology Company

Inventor： SHAUN B. ATCHISON ,  JEDIDIAH O. BENTZ ,  JOHN W. UERKVITZ ,  THERESA N. GILLETTE ,  BRIAN D. RIGG ,  SHAWN A. HERN ,  TOM R. TASKER ,  TYLER MCCUNE ,  ANEEK M. NOOR

IPC: F24F11/00 ,  F24F5/00 ,  F24F1/20

CPC classification number: F24F11/30 ,  F24F1/06 ,  F24F1/20 ,  F24F11/52 ,  F24F11/58 ,  F24F2110/10 ,  F24F2120/20 ,  F24F2140/12 ,  F24F2140/20 ,  F24F2140/40 ,  F24F2140/60 ,  F25B49/02

Abstract: An outdoor unit for a building HVAC system includes one or more sensors configured to measure temperature and pressure values. The unit also includes a user interface coupled to the outdoor unit. The user interface is configured to display information to a user. The unit includes a controller including a processing circuit. The processing circuit configured to record the temperature values and the pressure values via the sensors and cause the user interface to display temperature values and pressure values.

公开(公告)号：US20200098065A1

公开(公告)日：2020-03-26

申请号：US16698365

申请日：2019-11-27

Applicant: Johnson Controls Technology Company

Inventor： JEDIDIAH O. BENTZ ,  BRIAN D. RIGG ,  THERESA N. GILLETTE ,  TOM R. TASKER ,  TYLER MCCUNE ,  JOHN W. UERKVITZ ,  SHAUN B. ATCHISON ,  DANIEL S. MIDDLETON ,  ANEEK MUHAMMAD NOOR ,  WILLIAM P. ALBERTH, JR. ,  JOSEPH R. RIBBICH

IPC: G06Q50/06 ,  G06Q20/12 ,  G06Q20/14 ,  G05B15/02 ,  G05B19/042 ,  G06F3/01 ,  G06F3/0481 ,  G06F3/16 ,  G06K9/00 ,  F24F1/0003 ,  G06F3/0484 ,  G06F3/0488 ,  G06Q20/10 ,  F24F11/30 ,  H04W4/80 ,  G07F17/00

Abstract: A thermostat for a building space includes a communications interface, an electronic display, and a processing circuit. The communications interface is configured to receive service provider information via a network connection. The electronic display includes a user interface configured to display the service provider information. The processing circuit is configured to determine when to display the service provider information on the electronic display by monitoring thermostat events.

公开(公告)号：US20180031289A1

公开(公告)日：2018-02-01

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 ,  F25B13/00

CPC classification number: F25B47/025 ,  F25B2500/19 ,  F25B2600/23 ,  F25B2600/2513 ,  F25B2700/11 ,  F25B2700/171 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2103 ,  F25B2700/2106 ,  F25B2700/21151

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.

公开(公告)号：US20180031256A1

公开(公告)日：2018-02-01

申请号：US15630644

申请日：2017-06-22

Applicant: Johnson Controls Technology Company

Inventor： THERESA N. GILLETTE ,  JEDIDIAH O. BENTZ ,  SHAUN B. ATCHISON ,  JOHN W. UERKVITZ ,  BRIAN D. RIGG ,  SHAWN A. HERN ,  TOM R. TASKER ,  TYLER MCCUNE ,  ANEEK MUHAMMAD NOOR

IPC: F24F11/00

Abstract: A control system for an HVAC system. The control system includes a user interface configured to present information to a user and receive inputs from the user. A processor is configured to cause the processor to receive one or more system parameters associated with HVAC system components. The processor is further configured to determine if a maintenance operation is required in response to receiving the one or more system parameters, and to display to the user via the user interface an indication that a maintenance operation is required. The processor is also configured to receive an instruction from the user to initiate the maintenance operation, and to display one or more operational conditions required to be satisfied prior to the maintenance operations being performed. The HVAC components are monitored to determine if the operational conditions are completed, and maintenance instructions are displayed in response to the operational conditions being completed.