This internal pilot-operated diaphragm valve offers a durable solution for HVACR technical gas control without requiring a minimum operating pressure differential

How can I tell if this limit switch is defective

always confirm rotation against the motor's data plate to prevent airflow reversal and compressor overheating

Its corrosion-resistant diaphragm is engineered to withstand the demanding environment of high-efficiency gas furnaces where condensate and temperature fluctuations are common

High Pressure Rated: Engineered to handle the high operating pressures of R-410A systems

Lochinvar & A.O. Smith 100278128 Kit 322838-753 This internal pilot-operated diaphragm valveThe Lochinvar & A. O. Smith 100278128 Kit is a critical OEM LP Pilot Assembly designed for liquid propane water heating systems. Engineered for precision and long term reliability in high demand environments, this assembly functions as the primary ignition source for the burner, ensuring a stable and consistent flame for efficient combustion. This genuine replacement part replaces legacy Lochinvar part numbers such as the PLT2907, providing a seamless