Modine 78641 Circuit Board 326070-701 it protects internal windings from

it protects internal windings from environmental debris and moisture

this steel pulley is compatible with both standard A-section V-belts and cogged AX-style belts

It serves as a secondary signaling device that changes state simultaneously with the main contactor

including Bryant and Payne HVAC units

Developed as a genuine OEM part for seamless compatibility with Heil

Modine 78641 Circuit Board 326070-701 it protects internal windings fromThe Modine 78641 Circuit Board is a critical OEM replacement control engineered for high performance industrial HVAC systems. Designed as a 24V potted circuit board, this component features a specialized resin encapsulation that shields internal logic from the moisture, dust, and vibration typical of mechanical rooms and warehouse environments. This potted design ensures superior environmental protection and long term signal stability compared to