How do I know if the float needs replacement versus just the switch

Steam Rated Performance: Rated for high-temperature fluid up to 250°F and 15 PSI steam compatibility

While this board controls the logic

while the MTZ series

Designed for veteran technicians

Trane VAL9255 Service Valve 340793-762 How do I know ifProfessional technicians understand that a reliable 3 8" Liquid Service Valve is a critical component for maintaining system integrity during routine maintenance or full scale evacuation. The Trane VAL9255 (also cross referenced as VAL09255 or VAL4494) is a heavy duty OEM replacement valve designed specifically for high pressure HVACR liquid lines. This valve features a 3 8" ID x 3 8" ID connection, engineered to accommodate a standard Schrader core