Common Questions: Is the 8402-067BX compatible with older Bard units

you can limit travel anywhere between the 2" minimum and 4" maximum to match the damper's full-open/full-closed rotation

maintaining a consistent thermal cycle that prevents short-cycling of the compressor

25 to 135 Amps

Engineered by Honeywell (Model L4064B2210)

Lochinvar & A.O. Smith 100277770 Control 322055-301 Common Questions: Is the 8402-067BXThe 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,