Each unit incorporates binding head screw terminals and side-by-side quick-connect terminals

specifically designed to mate with standard 1-3/4 inch Rotolock service valves and compressor suction ports

Sold as a Package of 5

s service kit

this switch opens due to insufficient draft in the heat exchanger

York S1-2845-3171 Limit Switch Each unit incorporates binding headThe 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