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normally closed (NC) switch is factory-calibrated to open at 170°F
The inducer motor operates near the heat exchanger flue
Can this relay be used with non-KMC pneumatic systems
Leak Prevention: Eliminates steam bypass and prevents external leaks
McDonnell & Miller 349400 Black Y Assembly Els PW 17895 normally closed (NC) switch isThe McDonnell & Miller 349400 Black Y Assembly (Model SA159 17) is a critical replacement component for low water cut off systems and mechanical water feeders. This assembly is engineered to integrate seamlessly with Series 47 and Series 47 2 water feeders, as well as Model 64 A and Model 42S A controls. As a primary part of the MA 159 and MA 259 quick hook up fittings, it enables technicians to perform direct installations into gauge glass tappings
