York s1-02529041002 Temperature Limit Control 150F 120F

Product Description

The YORK s1-02529041002 is a temperature limit control designed for use in HVAC heating systems, functioning as a limit switch and thermostat assembly. It opens the control circuit at 150 degrees F and closes it at 120 degrees F, providing a built-in differential that protects the heat exchanger and associated components from overtemperature conditions. This type of limit control is a critical safety device in gas furnace systems, interrupting burner operation when discharge air or heat exchanger temperatures exceed the rated set point. Licensed HVAC technicians typically handle the diagnosis and replacement of this component.

This limit control is intended for residential and light commercial gas furnace applications where an OEM-spec temperature limit switch is required. It fits into systems that call for a device with a 150 degrees F open and 120 degrees F close set point. The control automatically resets once temperatures drop back to the close set point, restoring normal furnace operation without manual intervention. When the input names compatible models or systems, those would be listed here, but no specific model data was provided with this part.

Key Features

• Opens at 150 degrees F to interrupt the circuit and protect the system from overheating
• Automatically closes at 120 degrees F, restoring normal furnace operation
• Built-in 30-degree F differential provides stable, repeatable switching performance
• OEM replacement part sourced directly from YORK for assured fitment
• Functions as a limit switch and thermostat assembly in a single unit

Compatibility

Designed as an OEM-style replacement temperature limit control for YORK residential and light commercial gas furnace systems requiring a 150 degrees F open and 120 degrees F close limit switch assembly.

Installation Notes

Installation of this limit control should be performed by a licensed HVAC technician in accordance with local mechanical codes and the equipment manufacturer's service documentation. Always shut off power to the furnace at the disconnect and turn off the gas supply before removing the existing limit control. Confirm wiring connections are secure and that the replacement control is mounted in the same orientation as the original to ensure accurate temperature sensing. Do not bypass or jumper the limit control under any circumstances.

Technical Specifications

• Open Set Point: 150 degrees F
• Close Set Point: 120 degrees F
• Differential: 30 degrees F
• Function: Limit Switch and Thermostat Assembly

Standard Information

• Brand: YORK
• Manufacturer Part Number: s1-02529041002