York S1-2845-3171 Limit Switch Technicians should utilize a 10mm

Technicians should utilize a 10mm wrench to achieve the recommended 6-8 ft-lb of torque on the V-bolt nuts

this kit provides a complete set of high-grade gaskets and O-rings required to reseal the valve body and maintain pilot circuit integrity

While sourced by York (Source 1)

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 Technicians should utilize a 10mmThe 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