公开(公告)号：WO2022186955A1

公开(公告)日：2022-09-09

申请号：PCT/US2022/015724

申请日：2022-02-09

Applicant: SIEMENS INDUSTRY, INC.

Inventor： HRILJAC, Jeffrey ,  LIU, Jibo ,  POPE, Richard

IPC: F24F11/00 ,  F24F11/77

Abstract: There is described a system and method for high ventilation using outdoor air in an indoor area comprising an HVAC unit (101) and a controller (124). The HVAC unit (101) includes at least one damper (110) and a fan (130). The controller (124) detects an activation of an emergency purge mode, adjusts the at least one air damper (110) to allow a maximum of outside air to flow through the HVAC unit (101) without circulating return air, and establishes a fan speed of the fan (130) for maximum outside airflow through the HVAC unit (101). The controller (124) also modifies the fan speed of the fan (130) based on an occupant comfort criteria without regard to energy efficiency of the HVAC unit (101). The fan speed is modified based on a delta enthalpy of the HVAC unit (101) and a nominal capacity of the HVAC unit (101).

公开(公告)号：WO2021247196A1

公开(公告)日：2021-12-09

申请号：PCT/US2021/031205

申请日：2021-05-07

Applicant: SIEMENS INDUSTRY, INC.

Inventor： LIU, Jibo

IPC: F24F11/48 ,  F24F11/50 ,  F24F11/56 ,  F24F13/10 ,  G05B17/00 ,  G05B13/00 ,  G05D7/06 ,  F24F11/74 ,  F24F11/77 ,  F24F11/0001 ,  F24F11/46 ,  F24F11/64 ,  F24F11/65 ,  F24F2007/001 ,  F24F2011/0002 ,  F24F2011/0006 ,  F24F2110/10 ,  F24F2110/12 ,  F24F2110/40 ,  F24F2140/60 ,  F24F7/013 ,  G05B15/02 ,  G05B19/042 ,  G05B2219/2614 ,  G05D23/1931

Abstract: There is described a mobile device (422) and method for commissioning air intake control of an environmental control system. A communication component receives multiple air measurements from an air flow sensor (436), in which the air flow sensor (436) is positioned in a duct compartment of the environmental control system. The processor generates multiple air flow tables (408-414) based on the multiple air measurements (434), multiple fan speeds (430) associated with the environmental control system, and multiple damper positions (432) associated with the environmental control system. The communication component transmits the multiple air flow tables (408-414) to an air intake controller (402) of the environmental control system.

公开(公告)号：WO2022182508A1

公开(公告)日：2022-09-01

申请号：PCT/US2022/015550

申请日：2022-02-08

Applicant: SIEMENS INDUSTRY, INC.

Inventor： HRILJAC, Jeffrey ,  LIU, Jibo ,  BRENS, Steven ,  ROBERSON, Ariane ,  BILLA, Sandeep

IPC: G05B19/042 ,  F24F11/49

Abstract: There is described a system and method for configuring, commissioning and troubleshooting an HVAC unit. A unit type configuration (214) is established based on a type of HVAC system and temperature data, humidity data, and/or indoor air quality data. A fan configuration (214) is established based on whether a variable frequency drive fan is identified. Cooling and heating stage configurations (214) are established based on a compressor parameter and a heating stage parameter. An available auxiliary termination is identified in response to establishing the configurations. A safety is assigned to the available auxiliary termination in response to identifying the available auxiliary termination. An IO table (216) is provided to an HVAC controller, which includes physical input/output assignments for the terminations of the HVAC controller based on the configurations and the assigned safety. For another embodiment, The fan configuration is established based on one of a traditional stage blower fan or a variable frequency drive fan.

公开(公告)号：WO2022182472A1

公开(公告)日：2022-09-01

申请号：PCT/US2022/014252

申请日：2022-01-28

Applicant: SIEMENS INDUSTRY, INC.

Inventor： LIU, Jibo

IPC: F24F11/61 ,  F24F11/86 ,  F25B49/02

Abstract: There are disclosed controllers and methods for managing economizer outputs. The economizer controller (210) comprises an input component (418), a processor (406), and an output component (420). The input component (418) receives incoming control signals from an input device, in which each incoming control signal is associated with a corresponding compressor. The processor (406) generates an altered association of some of the incoming control signals to a different compressor based on a predetermined criteria. The output component (420) sends output control signals based on the altered association to a control circuit associated with the compressors.