I am building a pump system that has a receiving tank and chilled tank. The receiving tank will have a pump attached to it to pump into the chiller tank, however, the pump cannot lose prime or run dry, so I have decided to use a dual float switch to ensure that the fluid level always maintains a minimum. The pump will turn on once the top float rises up and the pump will shut off once the bottom float drops.
The float switch is this unit:
Switch ratings:
Max Switching Voltage : DC110V; Max Switching Power : 10W
The wires on the pump are probably 22AWG or 24AWG, very thin and will not work well with the 220V magnetic starter that I intend to use. So, I have acquired a 24VAC transformer along with a new/old stock Furnas magnetic starter that has a 24VAC coil. My intention was to wire the switch with 24VAC in a typical 3-wire Start/Stop control, but upon doing basic Ohm's law calculations, I still will probably be over in wattage for the reed switches inside of the floats. Any thoughts or advice as how to execute this control?
The float switch is this unit:
Switch ratings:
Max Switching Voltage : DC110V; Max Switching Power : 10W
The wires on the pump are probably 22AWG or 24AWG, very thin and will not work well with the 220V magnetic starter that I intend to use. So, I have acquired a 24VAC transformer along with a new/old stock Furnas magnetic starter that has a 24VAC coil. My intention was to wire the switch with 24VAC in a typical 3-wire Start/Stop control, but upon doing basic Ohm's law calculations, I still will probably be over in wattage for the reed switches inside of the floats. Any thoughts or advice as how to execute this control?