maintaining a maximum working pressure of 406 psig and a wide temperature operating range from -67°F to 212°F

Maintaining precise resistance-to-temperature correlation is essential for defrost cycle timing

Common Questions Is the 1840087 compatible with R-410A systems

With a 300 Hz frequency response and ± 5% accuracy

ensuring a secure fit onto the blower motor spindle

Lochinvar & A.O. Smith 100188878 Fan Assembly Freon maintaining a maximum working pressureThe Lochinvar & A. O. Smith 100188878 Fan Assembly is a critical OEM replacement component engineered specifically for the FTX500 series high efficiency boilers. Designed to maintain precise combustion air ratios, this heavy duty blower ensures optimal airflow for FTX500L and FTX500N models. As a veteran technician knows, maintaining the correct static pressure within the combustion chamber is vital for system longevity and peak thermal efficiency.