Lochinvar & A.O. Smith 100173793 Arm Assembly R-134A eliminating the need for 120V

eliminating the need for 120V power

What should I do if the screen remains blank after replacement

using this genuine IEC replacement part is critical to maintaining the AHRI ratings and original sound power levels of your fan coil unit

When you need to replace a worn 15/16 inch bore bearing

Plug-and-Play Compatibility: Designed for standard 60Hz applications to match factory electrical specifications

Lochinvar & A.O. Smith 100173793 Arm Assembly R-134A eliminating the need for 120VThe Lochinvar & A. O. Smith 100173793 Arm Assembly is a critical OEM replacement part engineered for high efficiency commercial boilers and heating systems. As a veteran grade gas air arm assembly, this component ensures the precise mechanical alignment necessary for optimal combustion and fluid regulation. Specifically designed for compatibility with Lochinvar Knight series models (including KBN, AWN, and SNA 500), this assembly facilitates the