such as a clogged HVAC air filter

and mission-critical fasteners for a full assembly rebuild

Key Benefits Eliminates Outside Venting: Meets NFPA 54 requirements for indoor installations

This unit serves as the direct replacement for 1170925

Common Questions Is the 100327322 compatible with all Lochinvar pumps

Lennox 10M63 Limit Switch such as a clogged HVACThe Lennox 10M63 Limit Switch is a critical safety component designed for precise thermal regulation within residential and light commercial HVAC systems. Engineered for high reliability applications, this SPDT limit control features an automatic reset function that ensures the system returns to normal operation once temperatures stabilize within the safe functional window. This specific model is a normally closed switch that triggers an open circuit