Patent ID: 8869611
Filing Date: 2014-10-28
Classification: F24H,G01M

Abstract:
1. A dual mode water leak detector in combination with a HIVAR air conditioning system, said combination comprising: a HIVAR air conditioning unit that uses chilled water for cooling and hot water or electric coils for heating and means for supplying heated or cooled air into a floor void and channeling return air through designated vents under the floor or through a false ceiling; a water sensor including an enclosed housing having a bottom or base and four electrical contacts extending through said base, and four insulated spacers or feet on the bottom or base of said housing for spacing said contacts at about 2 mm above a floor or bottom of a cabinet; a first circuit including a pair of banana clips, said first conduit connecting a first and a second contact separated from one another by an airspace to said banana clips for turning said HIVAR system off when water between said first and second contacts completes a circuit with to the HIVAR unit; a second circuit, and means for turning the HIVAR system off, a switch and a 60K OHM resistor connected in said second circuit to said first of said contacts and said second of said contacts when said switch is in a closed position to complete said second circuit by connecting said first and second contacts through said 60K OHM resistor through said banana clips to said means for turning said HIVAR system off; wherein said 60K OHM resistor is removed from said circuit when said switch is in an open position, and wherein said enclosed housing includes a removable top which includes said switch and a pair of banana connectors.