Cross-reference the S1-324-39724-003 part number with your manufacturer's parts list to ensure the internal programming matches your system's CFM requirements

The Armstrong Fluid Technology 174036MF-113 (Model S-45 BF) is a high-performance cast iron circulator pump designed for reliable fluid handling in commercial and residential hydronic systems

it offers enhanced energy efficiency and safety for various automated processes

Designed for compatibility with Lochinvar Copper-Fin II

the relay utilizes standard 1/4-inch quick-connect terminals

Lennox 43W85 Blower Assembly 320734-701 Cross-reference the S1-324-39724-003 part numberThe Lennox 43W85 Blower Assembly (LB 94724M) is a critical OEM replacement combustion air blower designed for precision exhaust management in high efficiency gas furnaces. Engineered for the Lennox G60UH series and various residential HVAC units, this 1 30 HP draft inducer operates at 3000 RPM to facilitate the safe removal of flue gases while drawing in fresh combustion air. Featuring a shaded pole motor rated at 115V and 2 amps, this assembly