Lochinvar & A.O. Smith 100173798 Assembly 321142-301 Professionals rely on the 510-312-041

Professionals rely on the 510-312-041 for its rugged construction and its ability to respond rapidly to thermal load changes

it serves as a robust solution for contractors prioritizing OEM-grade replacement parts and HVAC system optimization

Simplified Replacement: Identical to RLV2005

By slowing the fan as outdoor temperatures drop

this 3-blade aluminum propeller ensures precise airflow across the condenser coils

Lochinvar & A.O. Smith 100173798 Assembly 321142-301 Professionals rely on the 510-312-041The Lochinvar & A. O. Smith 100173798 Assembly is a critical combustion component engineered specifically for Knight XL boiler models KBN600 through KBN800. This factory spec gas air arm assembly is designed to manage the high precision mixing of fuel and combustion air, supporting the units 94. 6% thermal efficiency and 5: 1 modulation capabilities. As a core part of the boiler's negative regulation (Neg Reg) technology, this assembly ensures the fan