Lennox 29M74 Limit Switch 328140-751 specifically calibrated to maintain high

specifically calibrated to maintain high static pressure and balanced airflow across the coil

This replacement vertical drain pan provides the exact dimensions and port orientations required for optimal moisture management and leak prevention in tight mechanical closets and upright installations

Key Benefits Dual Coil Voltage: Versatile 24 Vac/dc or 120 Vac input simplifies field wiring and reduces inventory overhead

Its stainless steel sensing element is built to handle the mechanical stresses of high-side discharge environments

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