York S1-025-32706-000 Switch 320819-301 The integrated transformer supplies its

The integrated transformer supplies its own 24V control circuit

Versatile Application: Validated for both hot water and low-pressure steam systems

Smith 100109925 Blocked Inlet Switch is a critical safety component designed for high-efficiency gas-fired boilers and commercial water heaters

What causes a valve to fail to open after installing a rebuild kit

For smaller line sizes

York S1-025-32706-000 Switch 320819-301 The integrated transformer supplies itsThe York S1 025 32706 000 Switch is a high precision OEM replacement heating limit switch engineered to maintain critical safety parameters in York residential HVAC and light commercial systems. This specific automatic reset limit switch is calibrated to open at 150F and close at 120F, effectively interrupting the electrical circuit to the burner or heating elements when internal plenum temperatures exceed safe operating thresholds. For field service