York S1-025-27760-001 Temp Control

The York S1-025-27760-001 Temp Control is a specialized Single Pole Double Throw (SPDT) thermostat designed for precise temperature management in HVAC systems. Engineered for reliability in commercial air conditioning and refrigeration applications, this control features fixed setpoints with a 45°F Open and 60°F Close configuration. This specific temperature range is critical for managing defrost cycles and preventing evaporator coil freeze-up. As an OEM York replacement part, it ensures seamless integration with Johnson Controls and Source 1 equipment, maintaining system thermal regulation efficiency without the need for field calibration. The snap-action switch provides a clean break, reducing electrical arcing and extending the service life of the compressor contactor or fan relay it initiates. Whether used for low-ambient control or limit protection, this bimetal temperature switch provides the exact thermal response required for high-duty cycle environments.

Key Technical Benefits

• SPDT Switching Logic: Provides versatile wiring options for both normally open and normally closed circuits within the HVAC control loop.
• Fixed Setpoints: Pre-calibrated at 45°F Open and 60°F Close for consistent system cycling and freeze protection.
• OEM Compatibility: Precision-fit York S1-025-27760-001 ensures direct electrical and mechanical replacement for Source 1 HVAC parts.
• Durable Construction: Built to withstand the high vibration and moisture typical of condensing units and air handlers.

Common Installation Questions

What is the specific switching logic for this control?
This is an SPDT temp control, meaning it can switch power between two different circuits. In standard HVAC wiring, it is often utilized to cut power to a component at 45°F and restore it once the temperature rises to 60°F.

Can this be used as a universal defrost termination switch?
While it functions as a defrost thermostat, it is optimized for York and Coleman equipment. Always verify that the 45/60 degree setpoints match your specific refrigeration cycle requirements before installation.

Does this part require external shielding?
This sensor control is designed for internal system mounting, typically near the evaporator. However, ensuring clean terminal connections and proper moisture sealing is standard practice for field technicians to prevent premature failure.

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.