York S1-2845-3171 Limit Switch provided the jackshaft diameter does

provided the jackshaft diameter does not exceed 1/2"

this is a dedicated Natural Gas spring kit

Key Benefits: Universal Compatibility: Engineered as a high-precision 5H54751-45 replacement for various Modine gas-fired unit heaters

it delivers a stable 24 VAC output

Common Questions Why does my pilot flame go out as soon as I release the reset button

York S1-2845-3171 Limit Switch provided the jackshaft diameter doesThe York S1 2845 3171 is a high precision, automatic reset HVAC limit switch engineered specifically for York heating systems and light commercial furnace applications. This OEM limit control operates with a fixed temperature range, featuring a switch opening temperature of 105F and a switch closing temperature of 95F. As a critical safety component, it monitors airflow temperatures to prevent heat exchanger damage or system overheating, ensuring your