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The York S1-025-31834-000 Limit Switch is a critical OEM safety component engineered for narrow-tolerance thermal protection in York HVAC systems
this 48-inch HVAC universal thermocouple provides a stable 25-35 mV open circuit range
ensuring the heat exchanger does not exceed safe operating thermal limits
Is this gasket compatible with all Reznor unit heaters
Robertshaw 620-403 Transformer The York S1-025-31834-000 Limit SwitchThe Robertshaw 620 403 is a heavy duty single phase open frame transformer designed for reliable power stepping in HVACR control circuits. Engineering for versatility, this 40VA Class 2 transformer converts a 120V AC primary input to a 24V AC secondary output at 50 60 Hz. Built to meet stringent UL 1585 and NEMA standards, it serves as a critical component for powering 24V thermostats, gas valves, and ignition systems. The 620 403 features universal