Always verify the part number in your specific unit's illustrated parts list

This specific York temperature limit switch is typically utilized in 24V control circuits

and TH8321 VisionPRO models

For contractors servicing mobile home furnaces or residential air handlers

and 3003 series

Copeland Comfort Control (White Rodgers) 3L09-12 Limit Switch Always verify the part numberThe Copeland Comfort Control (White Rodgers) 3L09 12 Limit Switch is a high reliability 1 2" bimetal disc limit control engineered for precision high limit protection in residential and commercial furnaces. This board mounted HVAC limit switch features a fixed open temperature of 220F and a fixed close temperature of 180F. Operating on an open on rise switch action, it serves as a critical safety component to prevent heat exchanger damage or hazardous