This part usually includes the necessary mounting interface

Engineered by Honeywell (Model L4064B2210)

The Resideo VR8300A4508 is a professional-grade 3/4" 24VAC standing pilot dual automatic combination gas valve engineered for single-stage heating systems

25 to 135 Amps

Rated for 35 amp contact rating at 480 VAC

Lochinvar & A.O. Smith 100277770 Control 322055-301 This part usually includes theThe Lochinvar & A. O. Smith 100277770 Control is a critical integrated control board engineered for high output commercial boilers, specifically the FB1501 2001 series. As an essential OEM replacement part, this module manages the full ignition sequence, blower speed regulation, and safety circuit monitoring to ensure peak thermal efficiency. It is compatible with Power Fin and Crest models, including the FBL1501, FBL1751, FBL2001, FBN1501, FBN1751,