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Professional HVAC technicians select this part for its precise fit and factory-tested safety controls
Technicians should inspect the ceramic insulators and terminal connections for damage prior to installation to ensure a reliable electrical path and optimal heat transfer within the air stream
ensuring proper fitment and electrical sync with existing control boards
Smith Cyclone and Lochinvar models
Lennox 14A46 Pressure Switch 326058-755 Professional HVAC technicians select thisThe Lennox 14A46 Pressure Switch is a critical OEM replacement part designed for high efficiency, multi stage HVAC systems. This 2 stage pressure switch (Model 104549 04) is factory calibrated to monitor vital combustion air pressures, ensuring the inducer motor is moving the correct volume of air for safe ignition and operation. With a high set point of 0. 81" W. C. and a low set point of 0. 45" W. C., this dual stage pressure switch provides the