allowing it to withstand the demanding thermal cycles of units ranging from 30

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Common Questions What is the purpose of the manual reset on the ASCO 8044A3CSA

Lennox 14A51 Pressure Switch 321894-708 allowing it to withstand theEngineered as a high precision safety and sequencing component, the Lennox 14A51 Pressure Switch provides critical draft verification for two stage gas furnaces. This OEM sensor features a factory calibrated set point high of 0. 74" W. C. and a set point low of 0. 41" W. C., ensuring the inducer motor maintains the exact static pressure required for safe combustion. Built to withstand the harsh vibration and thermal cycles of an 80% to 95% efficiency