Importance

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Abstract

A drain pan system for activating a pump when detecting a predetermined water level in a drain pan is provided. The drain pan system includes the drain pan, the pump, a water sensor, first and second inputs, a control section and a switching device. The water sensor is coupled to the drain pan for detecting a level of water in the drain pan, the water sensor generating a drain pan water level detection signal in response to detection of the level of the water in the drain pan equal to or greater than a predetermined water level. The pump is coupled to the drain pan and, when activated, pumps the water from the drain pan. The first input couples a source line to a first power potential. The second input couples a neutral line to a second power potential, the second power potential being a neutral potential. The control section is coupled to the water sensor for receiving the drain pan water level detection signal therefrom. The control section is also connected to the first and second inputs and generates a switching signal in response to the drain pan water level detection signal. In addition, the switching device is coupled to the control section for connecting the first input to the pump in response to the switching signal, thereby activating the pump to pump the water from the drain pan.

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First Claim