Standex Electronics Flood Prevention Switches (FPS) HVAC/R series are simple to install, easy to service and extremely reliable. As water level in the auxiliary or main drain pipe rises (due to a clogged air conditioning condensate drain) the switch shuts off the system, thus preventing water from overflowing, causing damage to floors, walls and ceilings. Utilizing proven expert magnetic reed switch technology that feature Low voltage switching and reliable “no-stick” float design so switch operates smoothly every time. Quick and hassle free install and service features include: simple switch access, precision, no adjust switch install / removal, automatic switch reset, one spliced connection, flexible red or yellow wire connection, installation on primary and auxiliary drain pans and outlets, and high performance in low 1" drain pans.

 

Model	Image	Description
FPS-B Series (HVAC/R) Liquid Level Sensor		FPS-B Series (HVAC/R) Liquid Level Sensor bracket model flood prevention switches are simple to install, easy to service and extremely reliable. As water level in the auxiliary or main drain pipe rises (due to a clogged air conditioning condensate drain) the switch shuts off the system, thus preventing water from overflowing, causing damage to floors, walls and ceilings..
FPS-L Series (HVAC/R) Liquid Level Sensor		FPS-L Series (HVAC/R) Liquid Level Sensor elbow model flood prevention switches are simple to install, easy to service and extremely reliable. As water level in the auxiliary or main drain pipe rises (due to a clogged air conditioning condensate drain) the switch shuts off the system, thus preventing water from overflowing, causing damage to floors, walls and ceilings.
FPS-T Series (HVAC/R) Liquid Level Sensor		FPS-T Series (HVAC/R) Liquid Level Sensor tee model flood prevention switches are simple to install, easy to service and extremely reliable. As water level in the auxiliary or main drain pipe rises (due to a clogged air conditioning condensate drain) the switch shuts off the system, thus preventing water from overflowing, causing damage to floors, walls and ceilings.