this integrated furnace control serves as a direct upgrade for various York ignition control units

including models 24AHA4 and 24ABB3

Always verify the Fenwal 35-652505-003 specifications against the original equipment manufacturer (OEM) wiring diagram found on Laars water heaters

The "BX" suffix indicates "Boxed" for retail distribution but maintains the exact same technical specifications and physical dimensions

Hoffman Controls 765-ECM Controller 319825-402 this integrated furnace control servesThe Hoffman Controls 765 ECM Controller is a professional grade 0 10VDC manual speed controller engineered for precise modulation of ECM brushless DC motors. Built to withstand the rigors of commercial HVACR environments, this unit is line voltage independent, requiring only a 24VAC power source to operate. It allows technicians to fine tune airflow in systems utilizing variable speed fans, blowers, and air handling units, ensuring optimal system