Lochinvar & A.O. Smith 100145019 Air Fan 321142-301 maintaining the original pitch and

maintaining the original pitch and diameter is critical to prevent excessive amp draw and motor overheating

The Robertshaw 720-070 is a high-capacity gas heating valve designed for Intermittent Pilot Ignition (IPI) systems

Precise Electrical Compatibility: Native 12VDC coil operation ensures seamless integration with low-voltage DC control circuits and mobile HVAC equipment

The Schneider Electric M572-2308 is a high-performance pneumatic damper actuator designed for the precise modulation of airflow within commercial HVAC systems

These units are factory-calibrated

Lochinvar & A.O. Smith 100145019 Air Fan 321142-301 maintaining the original pitch andThe Lochinvar 100145019 Combustion Air Fan is a critical replacement component designed for high efficiency hydronic boilers and volume water heaters. Engineered for precise pre mix combustion air delivery, this centrifugal blower assembly ensures optimal air to fuel ratios across various firing rates. Originally sourced under part numbers such as Lochinvar FAN3032, it is compatible with select Knight XL and Copper Fin II models, as well as A. O.