The Foam Compensating Low Water Cutoffs, (LF series), are advanced, microprocessor based low water cutoffs for detecting the presence of a conductive fl uid in a vessel or tank. The LF series is primarily designed for use in low-pressure steam and hot water boilers to cutoff the burner in low water level conditions. They may be used as either the primary or secondary cutoff on low-pressure steam boilers or as the primary low water cutoff on hot water boilers. Additionally, they can protect pumps from running dry in condensate receiver tank applications or activate alarm systems or automatic water feeders. (See each boiler manufacturers’ specifi cations for recommended minimum safe water levels.)

The LF model is the ultimate LWCO control for use with hot water or steam boilers. The LF uses Taco\'s patented DualVision® technology to know the difference between foam, water, and even probe buildup. So unlike the competition, the LF won’t shut down your boiler on a false low water condition due to a dirty probe, or shut down every 10 minutes to check for proper water level. You can now run your steam boiler flat out for a significant gain in efficiency and operational safety. By processing and comparing two separate signals coming back through the standard probe, the DualVision® technology automatically determines the required delay on make (DOM) and delay on break (DOB) settings for any style steam boiler under any system conditions. The LF\'s patented smarts means no more dip switches to set or dials to program. External LEDs and a test button verify that everything is installed and wired correctly before you leave the job. You can even wire in an alarm or electric water feeder. The LF Series is available in 24 or 120 VAC models, automatic or manual reset models, ½” and ¾” NPT process connection sizes and a number of probe lengths to match your job requirements.