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A C Float Switch Wiring Diagram. A bilge or sump pump has a normally open float switch which turns on the pump when the water level rises above a set point. An air conditioner includes a normally closed float switch which turns off the system if the condensate drain clogs and water overfills the drip pan.
Twist one end of each float switch wire to one of the exposed section of the cut R terminal wire. It reveals the parts of the circuit as simplified forms and the power as well as signal links in between the devices. A wiring diagram is a simplified conventional pictorial depiction of an electric circuit.
For wiring instructions refer to the user manual or our new float switch wiring guide.
Positive from other side of float switch to relay coil. The electrical section of the switch is defective if the system fails to shut down. How New Float Switches Work. Some systems have an internal time delay on the blower and will continue to run for 30 seconds to 60 seconds after receiving a low voltage signal to turn off.