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Industrial-Grade Build: Constructed to withstand the thermal stresses found in burner compartments without performance degradation
The adjustable differential can be set by moving the internal lever
classrooms
maintaining alignment and calibration over extended duty cycles without the frequent need for field adjustments
and various industrial solvents
Lennox 38M64 Pressure Switch 320788-702 Industrial-Grade Build: Constructed to withstandThe Lennox 38M64 Pressure Switch is a critical safety component designed for precise draft pressure monitoring in residential and commercial HVAC systems. This OEM Lennox furnace part is factory calibrated to a set point of 1. 95" WC (Water Column), providing the exact differential pressure required to verify inducer motor operation and flue gas venting. Engineered as a direct replacement for Lennox 38M6401, this component ensures your furnace or air