In order for the switch to open it must be positioned in a location that is dry normally and will reliably fill with water when a drainage issue occurs.
Hvac condensate float switch.
Float condensate switches are designed so that they will remain closed when water is going down the drain like it s supposed to and then open when an overflow condition occurs.
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The condensate cop features a large over clamping area that fits easily over the edge of all types of drain pans.
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Including formed plastic and galvanized sheet metal.
When a condensate switch fails condensation will begin to overflow the sides of the condensate pan.
A condensate switch turns on a pump when condensation builds to a level that it could flow out of the pan and onto the surrounding area.
Aquaguard ag 1100 magnetic condensate overflow float switch for metal pans.
A separate float probe assembly swivels to accommodate drain pans having sloped sides.
Most of the time an algae growth is the culprit blocking the drain.
The condensate float switch is typically wired into the hvac or refrigeration control unit.
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Condensation builds in the drain pan of an air conditioning unit as the unit cools incoming air.
However small lizards or frogs occasionally become lodged in the pipe stopping the flow of the water.
As the water in the drain pan raises to an unsafe level the float switch shuts down the system so that additional condensate is not being created which would increase the potential for damage.