The bronze body construction and EPDM O-ring provide superior temperature resistance and a reliable seal against high-head pressure

ensuring a secure fit onto the blower motor spindle

With a 300 Hz frequency response and ± 5% accuracy

and F50F electronic air cleaner models that utilize 20-inch cells

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

Lochinvar & A.O. Smith 100188878 Fan Assembly Freon The bronze body construction andThe 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.