Lochinvar & A.O. Smith 100208561 Flue Sensor L99H008 and a complete set of

and a complete set of NBR (Buna-N) gaskets and seals to eliminate internal bypass and external leakage

Use a non-spring return or spring-return linkage depending on your fail-safe requirements

Environmental Resilience: The IP65 enclosure protects internal control line monitor components from dust and moisture in harsh mechanical rooms

Technicians must wrap the valve body in wet rags and use a heat sink or quenching cloth

Common Questions: What is the difference between Watts 0383368 and the 740-1 1/4-60

Lochinvar & A.O. Smith 100208561 Flue Sensor L99H008 and a complete set ofThe Lochinvar & A. O. Smith 100208561 Flue Sensor is a critical high temperature monitoring component engineered for precision in FTXL FTX 400 850(N L) heating boilers and Aquas AP400 850 commercial pool package heaters. As a direct replacement for TST20026K and 100170554, this updated flue temperature sensor provides real time thermal feedback to the control board to verify safe combustion levels and prevent exhaust system overheating. For a