Resideo AT150F1022 Transformer 321142-301 including the M744 and M745

including the M744 and M745

providing the necessary back-pressure to prevent product dehydration or coil freezing

utilizing a factory-spec Sanyo CV6232017175 control module eliminates the compatibility risks associated with generic universal boards

Direct OEM Replacement: Ensures exact fitment and electrical compatibility for York 7681-317P legacy boards

The externally equalized 1/4" ODF connection allows the valve to react accurately to evaporator pressure drops

Resideo AT150F1022 Transformer 321142-301 including the M744 and M745The Resideo AT150F1022 is a heavy duty 50VA control transformer engineered for reliable power distribution in commercial and residential HVACR systems. Built for professional grade duty cycles, this multi tap transformer features primary voltage inputs of 120V 208V 240V and steps down to a stable 24V secondary output. Designed with NEC Class 2 compliance, it is ideal for powering zone controllers, relays, and digital thermostats where predictable,