The Lennox 49L8601, 2144458167 36T01B3 Limit Switch is a temperature-sensitive safety device designed to prevent overheating in HVAC systems. With an automatic reset function, this OEM limit switch activates at 175F and resets at 145F (L175-30F), ensuring safe operation and system protection. Key Features: Model/Part Numbers: 49L8601, 2144458167, 36T01B3 Type: Limit Switch Reset Type: Auto Reset Temperature Rating: L175-30F (Trips at 175F, Resets at 145F) Application: Designed for Lennox HVAC systems to prevent overheating and ensure safe operation ?? Disclaimer This product is intended for professional use only. Installation by a certified technician is recommended. The seller is not responsible for improper installation, misuse, or any damage caused by self-installation. All trademarks and brand names mentioned in this listing belong to their respective owners. They are used for identification and compatibility purposes only. The product you receive will match the item shown in the photos. Please review all images carefully before purchasing.