Lochinvar & A.O. Smith 100277747 Bearing Assembly Els PW 17895 the FS-1 should be installed

the FS-1 should be installed in a horizontal run with the arrow on the casting following the direction of fluid flow

80% models typically require different kits like the FP-22 or FP-25 depending on the valve brand

Optimized Materials: Features a durable nitrile U-cup seal that withstands ambient operating temperatures from -20 to 150

Durable construction provides long-term protection for boiler control wiring in both residential and commercial steam applications

Lochinvar & A.O. Smith 100277747 Bearing Assembly Els PW 17895 the FS-1 should be installedThe Lochinvar & A. O. Smith 100277747 Bearing Assembly is a critical OEM component designed to restore structural integrity and whisper quiet operation to high efficiency commercial water heaters and boiler pumps. As the direct HVAC replacement part for legacy numbers ARM1046 and 100133571, this assembly is engineered to handle the high torque demands of hydronic heating systems while mitigating shaft vibration. For technicians performing a circulator