This SPST break-on-rise control is built with a negative biased power element diaphragm

professionals rely on the S1-024-35973-000 to maintain the original system's duty cycle and CFM requirements

The White-Rodgers 3L09-13 Limit Switch is a mission-critical board mounted 1/2" bimetal disc limit switch designed for rapid response and high-speed contact separation in residential and commercial furnaces

the Ranco V2-408060-270 is sold as the valve body only

The York S1-025-31927-000 Auto Limit Switch is a high-precision OEM furnace safety control designed to monitor and regulate internal heat exchanger temperatures

Carrier 51HK400163 Knob 321042-401 This SPST break-on-rise control isCarrier 51HK400163 Knob Notes Item is Non Cancelable Non Returnable