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Standardized Board Mounting: The 1
Critical Sizing: Accurately machined to a #29 drill size for industrial-grade reliability
Engineered for furnace high limit protection
the ignition sequence will be interrupted as a safety precaution
This component is designed for low-pressure pneumatic logic and should not exceed 25 psig to ensure reliable operation
Lennox 27K79 Limit Standardized Board Mounting: The 1The Lennox 27K79 175F Limit is a critical safety component designed for precise thermal regulation within the furnace plenum. As a primary high limit control, this genuine OEM replacement part is engineered to interrupt the electrical circuit to the gas valve if internal temperatures exceed the 175F threshold, effectively preventing heat exchanger damage and ensuring system safety. This furnace high limit switch features an automatic reset mechanism
