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1. 发明专利

CA3039300A1 CONTROL DEVICE FOR HVAC FAN COIL UNITS 未知
公开(公告)号：CA3039300A1
公开(公告)日：2019-10-06
申请号：CA3039300
申请日：2019-04-05
申请人： ECOBEE INC
发明人： BEAUREGARD GRAHAM
IPC分类号： F24F11/67 , F24F11/80 , G01K3/14 , G01K17/08
摘要： A control device for an HVAC fan control unit includes at least one sensor to provide a signal to the control device to determine the temperature of the working fluid supplied to a coil in the fan control unit. In a first configuration, the sensor determines if the working fluid is above or below a preselected temperature and the control device employs the signal from the sensor to determine if the fan control unit is in a heating or cooling mode. In a second configuration, the sensor measures the temperature of the working fluid and the control device employs the signal from the sensor to determine the heating, or cooling, ability of the fan control unit when utilizing the supplied working fluid. With two-pipe fan control units, a single sensor is employed on the working fluid supply pipe and a single signal representing the working fluid temperature is supplied to the control device. With four-pipe fan control units, a sensor is respectively employed on each of the heating fluid supply pipe and the cooling fluid supply pipe and two signals, each representing the temperature of a respective one of the cooling working fluid and heating working fluid, is supplied to the control device.

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