Professional Grade Durability: Built for continuous operation in demanding HVACR and industrial air environments

please verify your furnace model number against the technical data sheet or contact our team

28 cc displacement

Key Benefits for Technicians: Direct OEM Match: Replaces old part numbers 78H19

while the integrated manual gear release simplifies setup and manual positioning during commissioning

Velocity Boiler Works (Crown) 3505065 Control Board 320074-702 Professional Grade Durability: Built forThe Velocity Boiler Works (Crown) 3505065 Ignition Control Board is a critical OEM component designed to manage the full ignition sequence for gas fired hydronic systems. This high reliability ignition control module operates on a 24 VAC power supply and features a broad operating temperature range of 40F to 175F, ensuring stable performance in demanding mechanical room environments. Built with integrated safety mechanisms, the 3505065 control board