Lochinvar & A.O. Smith 100208661 Flow Switch 326058-757 fitting directly into the burner

fitting directly into the burner bracket with standard 1/4-inch fasteners

this specific model is designed for a 120V primary input

a 240V single-phase power supply is required

How do I verify if this 128KB RAM board is the correct part for my system

this universal replacement pilot is designed for dual-fuel applications

Lochinvar & A.O. Smith 100208661 Flow Switch 326058-757 fitting directly into the burnerThe Lochinvar & A. O. Smith 100208661 Flow Switch, also identified by part number 781621 or alias FS8 W, is a heavy duty liquid flow switch engineered for precise proof of flow detection in high efficiency commercial boiler systems and water heaters. Designed as a direct HVAC replacement part for the McDonnell & Miller FS8 W, this unit features a durable stainless steel #3 paddle configuration to ensure reliable contact closure once the system pump