York S1-025-37455-000 Temp Control

When you're dealing with low-ambient conditions or specific refrigeration staging, the York S1-025-37455-000 Temp Control provides the precise mechanical switching required to maintain system equilibrium. This HVAC temperature control switch is a Single Pole Single Throw (SPST) device, factory-calibrated for an open at 10°F and close at 0°F logic. Engineered as a direct OEM replacement part, it ensures the internal circuitry of your York or Johnson Controls unit operates within the designated thermal envelope without drifted setpoints.

For service technicians, this SPST temperature control is a critical component in preventing evaporator freeze-up or managing crankcase heater cycles in extreme cold. The robust construction of the S1-025-37455-000 is designed to withstand the vibration and thermal cycling common in commercial air handlers and condensing units. Its compact footprint and standard mounting make it a reliable York heating and cooling part for fast field installation during emergency repairs.

• Precise Thermal Calibration: Fixed 10°F Open and 0°F Close parameters eliminate the need for field adjustments and prevent manual setup errors.
• OEM Compatibility: Designed specifically for use with York and Johnson Controls equipment, including model J12YCC00A4ALC1, ensuring exact electrical matches.
• Durable SPST Configuration: Simplifies troubleshooting by providing a clear, reliable break in the circuit during temperature rises.
• Direct Replacement: Fits existing mounting brackets and wire harnesses to minimize downtime on the job site.

Is the York S1-025-37455-000 adjustable for different temperatures?
No, this is a fixed-point control calibrated to open at 10°F and close at 0°F for specific system protection and cycling requirements.

What happens if the circuit does not open at 10°F?
Failure to open usually indicates a fouled contact or a loss of charge in the sensing element, which can lead to improper system staging or component icing.

Can this be used in 24V or 120V control circuits?
Yes, as an SPST switch, it is typically rated for standard HVAC control voltages, but always verify your specific unit's wiring schematic before installation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.