公开(公告)号：US06225907B1

公开(公告)日：2001-05-01

申请号：US09312325

申请日：1999-05-14

申请人： Andy Lynn Derryberry ,  Cosimo Caronna ,  Darryl Elliott Denton

发明人： Andy Lynn Derryberry ,  Cosimo Caronna ,  Darryl Elliott Denton

IPC分类号： G08B1702

CPC分类号： G05D23/1904 ,  F24F11/52

摘要： An incipient failure indication apparatus for an environmental control system which includes a heat exchanger through which air flows and a temperature control thermostat. The indication apparatus includes an indicator having an alarm in communication with a control board, the control board in communication with the thermostat. The alarm has a visual indicator and/or an aural indicator, whereby the attention of a person is attracted to the indicator upon activation of the alarm. A first temperature sensor is disposed on the upstream side of the heat exchanger and a second temperature sensor is disposed on the downstream side of the heat exchanger, whereby the temperature sensors respectively sense the temperature of the air upstream and downstream of the heat exchanger. The first and second temperature sensors are in communication with the control board, and the control board has means for comparing the temperatures sensed thereby. The control board also includes means for activating the alarm in response to recognizing a difference in temperatures sensed by the first and second temperature sensors which is one of greater than and less than a predetermined value. The apparatus may also be provided with a timer, a reset switch in communication therewith, a filter service time indicator, and means for activating the filter service time indicator a predetermined period measured by the timer after the reset switch is activated. The apparatus may also be provided with means for activating a remote alarm upon activation of the alarm, whereby persons outside of a building serviced by the environmental control system are notified of an incipient failure of the environmental control system.

摘要翻译： 一种用于环境控制系统的初始故障指示装置，其包括空气流过的热交换器和温度控制恒温器。 指示装置包括具有与控制板通信的警报的指示器，控制板与恒温器通信。 警报器具有视觉指示器和/或听觉指示器，由此在激活警报器时，人的注意力被吸引到指示器。 第一温度传感器设置在热交换器的上游侧，第二温度传感器设置在热交换器的下游侧，由此温度传感器分别感测热交换器上游和下游的空气的温度。 第一和第二温度传感器与控制板通信，并且控制板具有用于比较由此感测的温度的装置。 控制板还包括用于响应于识别由第一和第二温度传感器感测到的温度差异大于或小于预定值的温度而启动报警的装置。 该设备还可以设置有定时器，与其通信的复位开关，过滤器服务时间指示器，以及用于在复位开关被激活之后由定时器测量的预定周期激活过滤器服务时间指示器的装置。 该装置还可以设置有用于在激活警报器时激活远程警报的装置，由环境控制系统服务的建筑物外的人被通知环境控制系统的初始故障。

公开(公告)号：US06490876B2

公开(公告)日：2002-12-10

申请号：US09782447

申请日：2001-02-13

申请人： Andy Lynn Derryberry ,  David Michael Jackson ,  Jon Donald Tromblee ,  Jurgen Pannock

发明人： Andy Lynn Derryberry ,  David Michael Jackson ,  Jon Donald Tromblee ,  Jurgen Pannock

IPC分类号： F25D2106

CPC分类号： F24F3/14 ,  F24F11/41

摘要： A method and apparatus for operating a dehumidifier in a de-ice mode is provided wherein the dehumidifier has an evaporator coil, a fan operated by a fan motor to cause a flow of ambient air over the evaporator coil, and a compressor operated by a compressor motor to cause a flow of refrigerant to the evaporator coil. A control is provided for detecting a characteristic of the dehumidifier associated with the formation of frost on the evaporator coil. Such characteristic could be the temperature of the evaporator coil, the rate of change of the temperature of the coil, a drop in the amp draw of the compressor motor below a predetermined value or a predetermined rate of downward change in the amp draw of the compressor motor. The control terminates power to the compressor motor after detection of the characteristic, either immediately or after a predetermined time, while continuing operation of the fan to provide the melting. Normal operation is resumed when the characteristic is no longer detected, or after passage of a predetermined amount of time.

摘要翻译： 提供了一种用于在除冰模式下操作除湿器的方法和装置，其中所述除湿器具有蒸发器盘管，由风扇马达操作以使周围空气流过所述蒸发器盘管的风扇，以及由压缩机操作的压缩机 电动机使致冷剂流向蒸发器盘管。 提供了用于检测与在蒸发器盘管上形成霜相关的除湿器的特性的控制。 这种特性可以是蒸发器盘管的温度，线圈的温度变化率，压缩机的放大倍率下降到低于预定值或压缩机的放大器下降的预定的向下变化率 发动机。 在继续操作风扇以提供熔化之后，控制器在检测到特性之后立即或在预定时间之后终止对压缩机电动机的电力。 当不再检测到特性时，或经过预定时间量后，恢复正常操作。