COMPRESSOR WITH FLOODED START CONTROL
    21.
    发明申请
    COMPRESSOR WITH FLOODED START CONTROL 审中-公开
    压缩机带有开关控制

    公开(公告)号:US20160076541A1

    公开(公告)日:2016-03-17

    申请号:US14947146

    申请日:2015-11-20

    Inventor: Hung M. PHAM

    Abstract: A system and method for flooded start control of a compressor for a refrigeration system are provided. A sensor generates sensed data corresponding to a condition of the refrigeration system. A control module is configured to operate the compressor in a flooded-start control mode including operating the compressor according to a cycle with a first time period during which the compressor is on and a second time period during which the compressor is off. The control module operates the compressor in an initial time period, without using the flooded-start control mode, with liquid refrigerant present in the compressor and monitors the sensed data from the sensor. The control module operates the compressor in the flooded start control mode after determining the first time period, the second time period, or a number of cycles, based on the sensed data monitored during the initial time period.

    Abstract translation: 提供了一种用于制冷系统的压缩机的淹没启动控制的系统和方法。 传感器产生对应于制冷系统的状况的感测数据。 控制模块被配置为以淹没启动控制模式操作压缩机,包括根据在压缩机打开的第一时间段和压缩机关闭的第二时间段的循环来操作压缩机。 控制模块在初始时间段内操作压缩机,而不使用溢流启动控制模式,存在于压缩机中的液体制冷剂并监测来自传感器的感测数据。 基于在初始时间段期间监测的感测数据,控制模块在确定第一时间段,第二时间段或多个周期之后,以淹没启动控制模式操作压缩机。

    COMPRESSOR WITH FLOODED START CONTROL
    22.
    发明申请
    COMPRESSOR WITH FLOODED START CONTROL 审中-公开
    压缩机带有开关控制

    公开(公告)号:US20160076540A1

    公开(公告)日:2016-03-17

    申请号:US14947121

    申请日:2015-11-20

    Inventor: Hung M. PHAM

    Abstract: A system and method for flooded start control of a compressor are provided. An ambient temperature sensor generates ambient temperature data and a compressor temperature sensor generates compressor temperature data. A control module receives the ambient temperature data and the compressor temperature data, determines whether the outdoor ambient temperature is rising faster than the compressor temperature, determines whether the outdoor ambient temperature is greater than the compressor temperature by more than a predetermined threshold for more than a predetermined time period, and, in response to the outdoor ambient temperature rising faster than the compressor temperature and the outdoor ambient temperature being greater than the compressor temperature by more than the predetermined threshold for more than the predetermined time period, operates the compressor according to at least one cycle including a first time period during which the compressor is on and a second time period during which the compressor is off.

    Abstract translation: 提供一种用于压缩机的淹没启动控制的系统和方法。 环境温度传感器产生环境温度数据,压缩机温度传感器产生压缩机温度数据。 控制模块接收环境温度数据和压缩机温度数据,确定室外环境温度是否比压缩机温度上升得快,确定室外环境温度是否大于压缩机温度超过预定阈值超过一个 并且响应于室外环境温度比压缩机温度上升得更快,并且室外环境温度大于压缩机温度超过预定阈值超过预定时间段,按照下面的步骤操作压缩机 至少一个循环,包括压缩机打开的第一时间段和压缩机关闭的第二时间段。

    SYSTEMS AND METHODS FOR ADJUSTING MITIGATION THRESHOLDS

    公开(公告)号:US20210239348A1

    公开(公告)日:2021-08-05

    申请号:US17048946

    申请日:2019-04-19

    Abstract: An indoor air quality (IAQ) system for a building includes an IAQ sensor that is located within the building and that is configured to measure an IAQ parameter, the IAQ parameter being one of: a relative humidity (RH) of air; an amount of particulate of at least a predetermined size present in air; an amount of volatile organic compounds (VOCs) present in air; and an amount of carbon dioxide present in air. A mitigation module is configured to: selectively turn on a mitigation device based on a comparison of the IAQ parameter with a first threshold; and selectively turn off the mitigation device based on a comparison of the IAQ parameter with a second threshold. A thresholds module is configured to: set the first and second thresholds to predetermined default values; and selectively adjust at least one of the first and second thresholds.

    COMPUTERIZED HVAC FILTER EVALUATION SYSTEM

    公开(公告)号:US20210231331A1

    公开(公告)日:2021-07-29

    申请号:US17048910

    申请日:2019-04-19

    Abstract: A heating, ventilation, and air conditioning (HVAC) control system generates a request to replace a first air filter installed in an air handler of an HVAC system with a second air filter. The second air filter has a particulate matter removal efficiency rating that is greater than a particulate matter removal efficiency rating of the first filter. The system delays for a predetermined period of time and then obtains (i) a first temperature of air downstream of the air handler and (ii) a second temperature of air upstream of the air handler. The system then calculates a temperature difference between the f temperatures and determines whether the temperature difference is within an acceptable range. In response to the temperature difference being within the acceptable range, the system (i) operates the HVAC system using the second air filter and (ii) generates an alert indicating compatibility of the second air filter.

    INDOOR AIR QUALITY AND OCCUPANT MONITORING SYSTEMS AND METHODS

    公开(公告)号:US20210116144A1

    公开(公告)日:2021-04-22

    申请号:US17048798

    申请日:2019-04-19

    Abstract: A condition identification module is configured to, based on output from the at least one of a microphone and a camera, indicate an occurrence of a user having a physical condition. A correlation module is configured to, based on the occurrence of the user having the physical condition and at least one of a temperature of air, a relative humidity of air, an amount of particulate of at least a predetermined size present in air, an amount of VOCs present in air, and an amount of carbon dioxide present in air, selectively identify the presence of a correlation between the occurrence of the user having the physical condition and the at least one of the temperature, the RH, the amount of particulate, the amount of VOCs, and the amount of carbon dioxide.

    System For Refrigerant Charge Verification
    27.
    发明申请

    公开(公告)号:US20180045445A1

    公开(公告)日:2018-02-15

    申请号:US15798081

    申请日:2017-10-30

    Inventor: Hung M. PHAM

    Abstract: A charge-verification tool is used with a charge-verification system to diagnose and remedy a charge condition. The charge-verification tool includes a device having a controller configured to communicate with a system controller in the charge-verification system and a display configured to display measurements and instructions to an installer. The device is a user interface and is configured to provide communication between the installer and the system controller in the charge-verification system. The controller prompts the installer to input charge-verification system information including refrigeration line length and diameter. The controller receives a subcooling temperature calculated by the system controller and determines whether the subcooling temperature is between a threshold and a target subcooling temperature. The controller displays an amount of charge to add to the charge-verification system based on whether the subcooling temperature is between the threshold and the target subcooling temperature.

    System and Method of Controlling a Variable-Capacity Compressor
    29.
    发明申请
    System and Method of Controlling a Variable-Capacity Compressor 审中-公开
    控制可变容量压缩机的系统和方法

    公开(公告)号:US20160313040A1

    公开(公告)日:2016-10-27

    申请号:US15138771

    申请日:2016-04-26

    Abstract: A system includes a variable-capacity compressor operable in a first capacity mode and in a second capacity mode that is higher than the first capacity mode. A variable-speed blower is operable at a first speed and at a second speed that is higher than the first speed. A control module is configured to (i) receive indoor relative humidity data corresponding to an indoor relative humidity (ii) switch the variable-capacity compressor between the first capacity mode and the second capacity mode based on a demand signal from a thermostat and the indoor relative humidity and (iii) switch the variable-speed blower between the first speed and the second speed based on the demand signal from the thermostat and the indoor relative humidity.

    Abstract translation: 一种系统包括可操作于第一容量模式和高于第一容量模式的第二容量模式的可变容量压缩机。 变速鼓风机以比第一速度高的第一速度和第二速度操作。 控制模块被配置为(i)接收对应于室内相对湿度的室内相对湿度数据(ii)基于来自恒温器和室内的需求信号在第一容量模式和第二容量模式之间切换可变容量压缩机 相对湿度和(iii)基于来自恒温器的需求信号和室内相对湿度,在第一速度和第二速度之间切换变速鼓风机。

    COMPRESSOR WITH FLOODED START CONTROL
    30.
    发明申请
    COMPRESSOR WITH FLOODED START CONTROL 审中-公开
    压缩机带有开关控制

    公开(公告)号:US20160076542A1

    公开(公告)日:2016-03-17

    申请号:US14947169

    申请日:2015-11-20

    Inventor: Hung M. PHAM

    Abstract: A system and method for flooded start control of a compressor having a crankcase heater are provided. A control module receives sensed data from a sensor, determines a current rate of liquid migration into the compressor, and compares the current rate with first and second predetermined thresholds. The control module operates the compressor in a flooded-start control mode, including operating the compressor according to at least one cycle with a first time period when the compressor is on and a second time period when the compressor is off. The control module operates the compressor in the flooded start control mode when the current rate is greater than the first predetermined threshold, activates the crankcase heater when the current rate is between the first and second predetermined thresholds, and operates the compressor without the flooded start control mode when the current rate is less than the second predetermined threshold.

    Abstract translation: 提供了具有曲轴箱加热器的压缩机的淹没启动控制的系统和方法。 控制模块从传感器接收感测数据,确定液体向压缩机迁移的当前速率,并将当前速率与第一和第二预定阈值进行比较。 控制模块以淹没启动控制模式操作压缩机,包括在压缩机接通时的第一时间周期和压缩机关闭的第二时间周期的至少一个周期操作压缩机。 当当前速率大于第一预定阈值时,控制模块以淹没启动控制模式操作压缩机,当当前速率在第一和第二预定阈值之间时启动曲轴箱加热器,并且在没有淹没启动控制的情况下操作压缩机 模式,当当前速率小于第二预定阈值时。

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