Durable Construction: Engineered to withstand high-cycle operations in restrictive duct environments

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

28 cc displacement

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

Velocity Boiler Works (Crown) 3505065 Control Board 320074-702 Durable Construction: Engineered to withstandThe 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