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Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
including MP953A
the unit features an integrated combustion blower motor and housing designed to meet strict UL safety standards
it ensures proper fitment and maintains the original equipment’s narrow operating tolerances
Universal Compatibility: Validated for use across a wide range of Lochinvar Knight boiler parts
Lennox 11U66 Pressure Switch 320074-702 including MP953AThe Lennox 11U66 Pressure Switch is a critical safety component designed for precise draft monitoring in high efficiency gas furnaces and HVAC systems. As a genuine OEM replacement, this 0. 55" WC pressure switch is factory calibrated to actuate at 0. 55 inches of water column, ensuring the inducer motor is creating sufficient static pressure before the ignition sequence begins. Built by Cleveland Controls (MPN: 11U66 or 104371 03), this single pole
