York S1-025-28670-003 Limit Switch Anti-Vacuum Functionality: Acts as a

Anti-Vacuum Functionality: Acts as a vacuum breaker to facilitate easy system draining and prevent negative pressure issues

Built from high-strength alloy steel with a corrosion-resistant coating

it provides the rapid heat-up required for modern high-efficiency systems

Always verify the motor nameplate for CW rotation (lead-end) to ensure compatibility with this specific 3-blade fan propeller

eliminating the need for bracket modifications

York S1-025-28670-003 Limit Switch Anti-Vacuum Functionality: Acts as aThe York S1 025 28670 003 Limit Switch is a critical safety component designed for precise thermal monitoring within York gas furnaces and residential air handlers. This automatic reset limit switch is engineered to operate within a specific 90 110F temperature range, ensuring the heat exchanger and plenum do not exceed safe operating parameters. When the sensed temperature hits the upper threshold, the internal bimetal disc opens the circuit to the