Lochinvar & A.O. Smith 100145010 Fan Kit 320788-704 this board is a common

this board is a common replacement for part numbers 1178030

The ECO is designed to detect over-temperature conditions and to open

this direct spark ignitor provides the precise arc required for pilot-lit burner configurations in high-demand thermal processing environments

unlike pilot-operated models that require a pressure differential

this dial is compatible with both 1-pipe and 2-pipe T-4000 series models

Lochinvar & A.O. Smith 100145010 Fan Kit 320788-704 this board is a commonThe Lochinvar & A. O. Smith 100145010 Fan Kit is a critical OEM combustion component engineered for high efficiency thermal systems. This replacement blower assembly is designed specifically for SYNC SBN1300 1500 condensing boilers and Knight XL KBN600 800 heating boilers manufactured prior to serial number C09. As a veteran technician knows, maintaining precise air to fuel ratios is non negotiable for condensing heat exchangers; this combustion fan