Lennox 14A46 Pressure Switch 321042-401 What causes a pressure switch

What causes a pressure switch error on Lochinvar or A

The 24-inch lead provides ample reach for versatile burner configurations

peak performance

this valve offers superior reliability for pneumatic systems and process automation requiring precise on/off fluid control

Lennox 14A46 Pressure Switch 321042-401 What causes a pressure switchThe 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