Crown Engineering H24-30 Spiralink Coupler 319848-301 provided the unit size matches

provided the unit size matches the 75

While technicians may temporarily depress the switch to observe system behavior

allowing for electrical servicing without breaking into the steam line

A common symptom is the boiler failing to ignite or going into lockout mode

Crown Engineering H24-30 Spiralink Coupler 319848-301 provided the unit size matchesThe Crown Engineering H24 30 Spiralink Coupler is a heavy duty, one piece alternative to traditional 4 spring "fly away" couplings found in hydronic circulator pumps. Engineered for 1 2" x 1 2" shaft sizes, this CCW (Counter Clockwise) coupler features a unique single spring design that provides 3 dimensional flexibility. This allows the assembly to act as a universal joint, compensating for shaft misalignment that typically destroys standard