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specifically calibrated to maintain high static pressure and balanced airflow across the coil
Its stainless steel sensing element is built to handle the mechanical stresses of high-side discharge environments
Standard Threading: Features a 5/16-18 NPT female connection for easy replacement and universal fit
preventing nuisance tripping while providing reliable high-limit protection
using the Carrier SF703026 maintains the factory seal and electrical impedance required for modern high-efficiency systems
Lennox 29M74 Limit Switch 328140-751 specifically calibrated to maintain highThe Lennox 29M74 Limit Switch is a critical fixed temperature safety component engineered for Lennox furnace flame rollout and primary limit protection. This SPST (Single Pole Single Throw) thermal switch is rated for a 140F trip point with a 30F differential, ensuring precise furnace cycling and preventing heat exchanger damage. Designed as a direct OEM replacement limit switch, the 29M74 features a 1 inch insertion depth and 1 4 inch quick connect
